Anatomy And Physiology Test 1

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  • 1/97 Questions

    In which cavity is the brain located? 

    • Cranial cavity
    • Vertebral cavity
    • Abdominal cavity
    • Pericardial cavity
    • Pleural cavity
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About This Quiz

Anatomy and Physiology Test 1 explores key concepts in human biology, focusing on physiology, tissue structures, diagnostic techniques, and metabolic processes. This quiz enhances understanding of body functions and systems crucial for students in health-related fields.

Anatomy And Physiology Test 1 - Quiz

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  • 2. 

    The subatomic particles that make up atoms include: 

    • Protons, Neutrons, Electrons

    • Neutrons, quarks, muons

    • Muons, positions, neutrons

    • Electrons, quarks, protons

    • Positions, protons, neutrons

    Correct Answer
    A. Protons, Neutrons, Electrons
    Explanation
    The subatomic particles that make up atoms are protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. These particles are essential for the structure and behavior of atoms. Protons and neutrons are located in the nucleus of an atom, while electrons orbit around the nucleus. Together, these three particles determine the atomic number, mass number, and overall charge of an atom.

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  • 3. 

    In which cavity is the stomach located?

    • Vertebral cavity

    • Cranial cavity

    • Abdominal cavity

    • Pericardial cavity

    • Pleural cavity

    Correct Answer
    A. Abdominal cavity
    Explanation
    The stomach is located in the abdominal cavity. The abdominal cavity is the space located below the diaphragm and above the pelvic cavity. It houses several organs including the stomach, liver, intestines, and kidneys. The stomach is positioned in the upper part of the abdominal cavity, between the esophagus and the small intestine. It is responsible for the digestion and breakdown of food.

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  • 4. 

    Which of the following particles has a neutral charge? 

    • Neutron

    • Electron

    • Proton

    • All of the above

    Correct Answer
    A. Neutron
    Explanation
    The neutron has a neutral charge because it has no net electrical charge. It is composed of three quarks: two down quarks and one up quark. The down quarks have a charge of -1/3 each, while the up quark has a charge of +2/3. The charges of the quarks cancel each other out, resulting in a neutral overall charge for the neutron. In contrast, the electron has a negative charge of -1, and the proton has a positive charge of +1. Therefore, the correct answer is neutron.

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  • 5. 
    In the diagram, this structure directs cellular activities.  Hint: Nucleus  - ProProfs

    In the diagram, this structure directs cellular activities.  Hint: Nucleus 

    • D

    • F

    • G

    • A

    • H

    Correct Answer
    A. G
    Explanation
    The correct answer is G. The diagram shows a structure that is labeled as the nucleus. The nucleus is a membrane-bound organelle found in eukaryotic cells. It contains the cell's DNA and directs cellular activities such as growth, metabolism, and reproduction. Therefore, the nucleus is responsible for directing cellular activities, making option G the correct answer.

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  • 6. 

    This directional term is the opposite of deep 

    • Superficial

    • Superior

    • Inferior

    • Distal

    • Proximal

    Correct Answer
    A. Superficial
    Explanation
    Superficial is the correct answer because it means "near the surface" or "shallow." In the context of direction, it refers to something that is closer to the surface or outer part rather than being deep. Therefore, it is the opposite of deep.

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  • 7. 

    Which cavity would include the heart? 

    • Pericardial cavity

    • Cranial cavity

    • Vertebral cavity

    • Abdominal cavity

    • Pleural cavity

    Correct Answer
    A. Pericardial cavity
    Explanation
    The heart is located in the pericardial cavity. This cavity is a small space that surrounds the heart and is lined by the pericardium, a protective sac. The pericardial cavity contains a small amount of fluid that helps reduce friction as the heart beats. The other cavities listed, such as the cranial cavity, vertebral cavity, abdominal cavity, and pleural cavity, do not contain the heart.

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  • 8. 

    These are immature, undifferentiated cells that can divide to replace lost or damaged cells 

    • Stem cells

    • Parenchyma

    • Fibrosis

    • Granular tissue

    • Adhesions

    Correct Answer
    A. Stem cells
    Explanation
    Stem cells are immature, undifferentiated cells that have the ability to divide and differentiate into various specialized cell types. They can replace lost or damaged cells in the body, contributing to tissue repair and regeneration. Stem cells are unique in their ability to self-renew and give rise to different cell types, making them valuable in medical research and potential therapies for a wide range of diseases and injuries.

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  • 9. 

    This directional term means farther from the attachment of a limb to the trunk or farther from the origination of a structure.

    • Distal

    • Deep

    • Contralateral

    • Lateral

    • Cephalic

    Correct Answer
    A. Distal
    Explanation
    Distal is the correct answer because it refers to a location that is farther away from the attachment of a limb to the trunk or farther away from the origination of a structure. In anatomical terms, distal is used to describe a position that is further away from the body's midline or center. This term is commonly used to describe the location of body parts in relation to each other, such as the fingers being distal to the wrist or the toes being distal to the ankle.

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  • 10. 

    Which is the function of ATP?

    • Produce electrical impulses

    • Transfers energy for cell functions

    • Transfer information for protein synthesis

    • Store information for protein synthesis

    • Transport of fluids

    Correct Answer
    A. Transfers energy for cell functions
    Explanation
    ATP, or adenosine triphosphate, is a molecule that serves as the main energy source for cellular functions. It is responsible for transferring energy within cells, providing the necessary fuel for various metabolic processes. ATP is synthesized during cellular respiration and then broken down to release energy when needed. Therefore, the function of ATP is to transfer energy for cell functions.

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  • 11. 

    What are the major elements found in the body? 

    • Carbon, hydrogen, oxygen and nitrogen

    • Nitrogen, oxygen, calcium, sodium

    • Hydrogen, carbon, phosphorus, calcium

    • Oxygen, nitrogen, potassium, calcium

    • Potassium, phosphorous, sodium, hydrogen

    Correct Answer
    A. Carbon, hydrogen, oxygen and nitrogen
    Explanation
    The major elements found in the body are carbon, hydrogen, oxygen, and nitrogen. These elements are essential for various biological processes and are found in abundance in living organisms. Carbon is the building block of organic molecules, hydrogen and oxygen are crucial for energy production and water balance, and nitrogen is necessary for the formation of proteins and nucleic acids.

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  • 12. 

    This is defined as the capacity to do work 

    • Energy

    • Metabolism

    • Electrolytes

    • Chemical reaction

    • Concentration

    Correct Answer
    A. Energy
    Explanation
    Energy is the correct answer because it is defined as the capacity to do work. Energy is the ability to exert force or cause change, and it can exist in various forms such as kinetic, potential, thermal, or chemical energy. Without energy, no work can be done, and it is a fundamental concept in physics and biology.

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  • 13. 

    Which of the following protects the contents of the nucleus? 

    • Nucleic acids

    • Nuclear membrane

    • Nuclear centrosome

    • Cilia

    • Golgi apparatus

    Correct Answer
    A. Nuclear membrane
    Explanation
    The nuclear membrane is responsible for protecting the contents of the nucleus. It acts as a barrier, separating the nucleus from the rest of the cell, and controls the movement of molecules in and out of the nucleus. This membrane helps to maintain the integrity and organization of the nucleus, ensuring that the genetic material and other important components inside are protected and regulated.

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  • 14. 

    This is the sum of all cellular processes that occur in the body. 

    • Metabolism

    • Anabolism

    • Catabolism

    • Auscultation

    • Palpation

    Correct Answer
    A. Metabolism
    Explanation
    Metabolism refers to the sum of all cellular processes that occur in the body. It includes both anabolism, which is the building up of molecules, and catabolism, which is the breaking down of molecules. Auscultation and palpation, on the other hand, are medical examination techniques and are not related to cellular processes. Therefore, the correct answer is metabolism.

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  • 15. 

    What region of an atom contains the protons and neutrons? 

    • Nucleus

    • Cloud

    • Element

    • Ring

    • Shell

    Correct Answer
    A. Nucleus
    Explanation
    The region of an atom that contains the protons and neutrons is called the nucleus. The nucleus is located at the center of the atom and is surrounded by the electron cloud. Protons and neutrons are both subatomic particles that are found within the nucleus. The protons have a positive charge, while the neutrons have no charge. Together, protons and neutrons make up the majority of an atom's mass.

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  • 16. 

    Which is the function of DNA?

    • Produce chemical signals

    • Storage of energy

    • Transfer information for protein synthesis

    • Store information for protein synthesis

    • Transport of electrolytes

    Correct Answer
    A. Store information for protein synthesis
    Explanation
    DNA is responsible for storing and transmitting genetic information in all living organisms. It carries the instructions needed for the synthesis of proteins, which are essential for the structure and function of cells. This information is stored in the sequence of nucleotides within the DNA molecule. Therefore, the function of DNA is to store information for protein synthesis.

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  • 17. 

    This plane divides the body into right and left halves. 

    • Sagittal

    • Frontal

    • Transverse

    • Oblique

    • Coronal

    Correct Answer
    A. Sagittal
    Explanation
    The plane that divides the body into right and left halves is called the sagittal plane. This plane runs parallel to the midline of the body and separates it into two symmetrical halves. The term "sagittal" is derived from the Latin word "sagitta" which means arrow, as the plane resembles an arrow slicing through the body from front to back.

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  • 18. 

    In a typical body solution, the solvent is 

    • Glucose

    • Lipids

    • Carbon dioxide

    • Water

    • Electrolyte

    • Glucose

    Correct Answer
    A. Water
    Explanation
    In a typical body solution, the solvent is water. Water is the most abundant substance in the human body and serves as a universal solvent, meaning it can dissolve a wide variety of solutes. It plays a crucial role in various biological processes such as transportation of nutrients, removal of waste products, regulation of body temperature, and maintenance of cell structure and function. Without water, many physiological functions would not be possible, making it the correct answer in this case.

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  • 19. 

    Which of the following is a monosaccaride that is important in producing energy. 

    • Glucose

    • Sucrose

    • Lactose

    • Ribose

    • Deoxyribose

    Correct Answer
    A. Glucose
    Explanation
    Glucose is a monosaccharide that is important in producing energy because it is the primary source of energy for the body's cells. It is broken down during cellular respiration to release ATP, which is used by cells for various metabolic processes. Glucose is also used in the process of photosynthesis in plants to produce energy-rich molecules such as starch and cellulose.

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  • 20. 

    This is defined as a group of cells with similar structure and function. 

    • Tissue

    • Organ

    • Molecules

    • Compounds

    • Organisms

    Correct Answer
    A. Tissue
    Explanation
    Tissue is the correct answer because it refers to a group of cells that have similar structure and function. Tissues work together to perform specific functions within an organism. This is different from organs, which are made up of different types of tissues and perform more complex functions. Molecules and compounds are not related to the concept of a group of cells, and organisms refer to a complete living entity rather than a specific group of cells.

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  • 21. 

    Using your fingers to find your pulse on your wrist is an example of 

    • Auscultation

    • Palpation

    • Responsiveness

    • Gross Anatomy

    • Physiologist

    Correct Answer
    A. Palpation
    Explanation
    Using your fingers to find your pulse on your wrist is an example of palpation because palpation refers to the act of using touch or pressure to examine the body for signs of illness or abnormalities. In this case, by feeling the pulse in the wrist, one is using palpation to assess the heart rate and rhythm. Auscultation, on the other hand, involves listening to internal body sounds using a stethoscope, which is not applicable in this scenario. Responsiveness, gross anatomy, and physiologist are not relevant to the act of finding a pulse.

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  • 22. 

    A transverse plane will cut a body or organ into 

    • Superior and inferior

    • Anterior and posterior

    • Left and right

    • At an angle

    • Unequal left and right sides

    Correct Answer
    A. Superior and inferior
    Explanation
    A transverse plane is a horizontal plane that divides the body or organ into superior (upper) and inferior (lower) parts. This means that the plane cuts the body or organ into two sections, with one section being above the plane (superior) and the other section being below the plane (inferior).

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  • 23. 

    Mitochondria

    • Move the cell

    • Generate ATP

    • Produces proteins

    • Oxidize organells

    • Synthesize glycolipids

    Correct Answer
    A. Generate ATP
    Explanation
    Mitochondria are known as the "powerhouses" of the cell because they generate ATP (adenosine triphosphate), which is the main source of energy for cellular activities. ATP is produced through a process called oxidative phosphorylation, which occurs in the inner membrane of the mitochondria. This process involves the transfer of electrons from molecules derived from food to the electron transport chain, resulting in the production of ATP. Therefore, the correct answer is that mitochondria generate ATP.

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  • 24. 

    Dense connective tissues main function is 

    • Storage of mineral

    • Forms stroma oof organs

    • Reducing heat loss

    • Strong attachment between structures

    • Aids in elasticity

    Correct Answer
    A. Strong attachment between structures
    Explanation
    Dense connective tissues have a main function of providing strong attachment between structures. This means that they help to connect and hold together different parts of the body, providing stability and support. Dense connective tissues are composed of strong collagen fibers, which allow them to withstand tension and provide resistance to stretching. This function is crucial in ensuring that structures such as bones, muscles, and organs are securely attached to each other, allowing for proper movement and functioning of the body.

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  • 25. 

    This plane divides the body into anterior and posterior halves. 

    • Frontal

    • Sagittal

    • Transverse

    • Oblique

    • Midsagittal

    Correct Answer
    A. Frontal
    Explanation
    The plane that divides the body into anterior and posterior halves is called the frontal plane. This plane runs vertically from side to side, dividing the body into front and back sections. It is also known as the coronal plane. The sagittal plane divides the body into left and right halves, while the transverse plane divides the body into upper and lower halves. The oblique plane runs at an angle and does not have a specific division pattern. The midsagittal plane is a specific type of sagittal plane that divides the body into equal left and right halves.

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  • 26. 

    This is the number of protons or electrons. 

    • Atomic number

    • Mass number

    • Isotope

    • Valence shell

    • None of the above

    Correct Answer
    A. Atomic number
    Explanation
    The atomic number refers to the number of protons or electrons in an atom. It is a unique identifier for each element on the periodic table. The number of protons determines the element's chemical properties and its position on the periodic table. Therefore, the correct answer is atomic number.

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  • 27. 

    A solution with a pH value smaller than 7 would be a(n)

    • Base

    • Salt

    • Acid

    • Alkaline

    • Concentrate

    Correct Answer
    A. Acid
    Explanation
    A solution with a pH value smaller than 7 indicates that the solution is acidic. Acids have a pH value less than 7, indicating a higher concentration of hydrogen ions (H+) in the solution. This higher concentration of hydrogen ions makes the solution acidic in nature.

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  • 28. 

    What is the basic unit of compact bone tissue? 

    • Osteon

    • Stroma

    • Lamellae

    • Chromosome

    • Lacunae

    Correct Answer
    A. Osteon
    Explanation
    The basic unit of compact bone tissue is called an osteon. Osteons are cylindrical structures that are composed of concentric layers of bone tissue called lamellae. They contain osteocytes, which are bone cells, and are interconnected by tiny channels called canaliculi. Osteons are responsible for the strength and support of compact bone tissue.

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  • 29. 

    This type of bond requires a sharing of electrons 

    • Covalent

    • Ionic

    • Hydrogen

    • Atomic

    • Electronic

    Correct Answer
    A. Covalent
    Explanation
    Covalent bonds require a sharing of electrons between atoms. In this type of bond, two atoms share one or more pairs of electrons, resulting in a stable arrangement of outer electrons for both atoms. This sharing of electrons allows the atoms to achieve a full outer electron shell, similar to the noble gases. Covalent bonds are typically formed between nonmetal atoms and are characterized by their strong bond strength and directional nature.

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  • 30. 
    In the figures, which one represents blood?  - ProProfs

    In the figures, which one represents blood? 

    • K

    • J

    • H

    • G

    • F

    Correct Answer
    A. K
  • 31. 

    A solute that dissolves in water is 

    • Hydrophobic

    • Hydrostatic

    • Hydroamoure

    • Hydrophillic

    • Hydrozone

    Correct Answer
    A. Hydrophillic
    Explanation
    A solute that dissolves in water is hydrophilic because it has an affinity for water molecules. Hydrophilic substances are polar or have charged groups that can form hydrogen bonds with water molecules, allowing them to dissolve easily in water.

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  • 32. 

    Which of the following is not one of the main tissue types found in the human body? 

    • Epithelial

    • Connective

    • Myocardial

    • Muscle

    • Nervous

    Correct Answer
    A. Myocardial
    Explanation
    Myocardial is not one of the main tissue types found in the human body. The main tissue types are epithelial, connective, muscle, and nervous. Myocardial refers specifically to the tissue found in the heart, which is a specialized type of muscle tissue. While muscle tissue is one of the main types, myocardial is a more specific term referring to the heart muscle specifically.

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  • 33. 

    This pigment absorbs ultraviolet light

    • Keratin

    • Melanin

    • Melationin

    • Carotene

    • Nigrosin

    Correct Answer
    A. Melanin
    Explanation
    Melanin is the correct answer because it is a pigment that is responsible for the color of our skin, hair, and eyes. It is produced by specialized cells called melanocytes and helps to protect the skin from the harmful effects of ultraviolet (UV) radiation by absorbing and dissipating UV light. This helps to prevent damage to the DNA in our skin cells and reduces the risk of sunburn and skin cancer.

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  • 34. 

    The function of mitosis is 

    • Production of gametes

    • Create more cilia

    • Form flagella

    • Production of proteins

    • Production of new cells

    Correct Answer
    A. Production of new cells
    Explanation
    Mitosis is a process of cell division that occurs in somatic cells, resulting in the production of two identical daughter cells. This process is essential for growth, repair, and maintenance of tissues in multicellular organisms. During mitosis, the replicated DNA is evenly distributed into the daughter cells, ensuring that each cell receives a complete set of genetic material. Therefore, the function of mitosis is the production of new cells.

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  • 35. 

    Albinism

    • Is the absence of melanin

    • Is the absence of carotene

    • Is the absence of both melanin and carotene

    • Is the absence of keratin

    • Is the absence of thick skin

    Correct Answer
    A. Is the absence of melanin
    Explanation
    Albinism is a genetic condition characterized by the absence of melanin, the pigment responsible for the color of the skin, hair, and eyes. People with albinism often have very light or white hair, skin, and eyes, and they are more susceptible to sunburn and vision problems due to the lack of melanin's protective properties. This condition is not related to the absence of carotene, keratin, or thick skin.

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  • 36. 

    This is the study of the functions of body structures. 

    • Anatomy

    • Physiology

    • Dissection

    • Histology

    • Immunology

    Correct Answer
    A. Physiology
    Explanation
    Physiology is the study of the functions of body structures. It focuses on how organs and systems work together to maintain homeostasis and carry out various biological processes. This field of study explores the mechanisms behind bodily functions, such as digestion, respiration, circulation, and reproduction. Unlike anatomy, which focuses on the structure of body parts, physiology delves into the processes and mechanisms that enable these structures to function. Dissection, histology, and immunology are all related fields, but they do not specifically study the functions of body structures like physiology does.

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  • 37. 

    Which is the function of RNA?

    • Produce electrical impulses

    • Storage of energy

    • Transfer information for protein synthesis

    • Store information for protein synthesis

    • Transport of fluids

    Correct Answer
    A. Transfer information for protein synthesis
    Explanation
    RNA is responsible for transferring information for protein synthesis. RNA molecules are transcribed from DNA and carry the genetic information from the DNA to the ribosomes, where protein synthesis occurs. This transfer of information is essential for the production of proteins, which are vital for various cellular processes and functions in the body.

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  • 38. 

    The matrix in blood tissue is 

    • Red blood cells

    • White blood cells

    • Plasma

    • Platelets

    • Albumin

    Correct Answer
    A. Plasma
    Explanation
    The matrix in blood tissue refers to the liquid component of blood, known as plasma. Plasma is a yellowish fluid that makes up about 55% of total blood volume and contains water, proteins, hormones, electrolytes, and waste products. It plays a crucial role in transporting nutrients, hormones, and waste products throughout the body, regulating body temperature, and maintaining blood pressure. Therefore, plasma is the correct answer as it is the main component of the blood matrix.

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  • 39. 

    In which cavity are the lungs located? 

    • Pericardial cavity

    • Cranial cavity

    • Vertebral Cavity

    • Abdominal cavity

    • Pleural cavity

    Correct Answer
    A. Pleural cavity
    Explanation
    The lungs are located in the pleural cavity. The pleural cavity is a space between the visceral and parietal pleura, which are two layers of serous membrane that surround the lungs. This cavity contains a small amount of fluid that helps to reduce friction during breathing and allows the lungs to expand and contract easily.

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  • 40. 

    This directional term means farthest from the midline. 

    • Lateral

    • Medial

    • Anterior

    • Proximal

    • Deep

    Correct Answer
    A. Lateral
    Explanation
    The term "lateral" refers to a position or direction that is farthest from the midline. In anatomical terms, the midline is an imaginary line that divides the body into left and right halves. Therefore, if something is described as being "lateral," it means it is located further away from the midline towards the side of the body.

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  • 41. 

    Thick skin 

    • Is found in the palms, soles of the feet and fingertips

    • Does not contain hair follicles

    • Contains more sweat glands than thin skin

    • Contain epidermal ridges

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The statement "All of the above" is the correct answer because it encompasses all the given statements about thick skin. Thick skin is indeed found in the palms, soles of the feet, and fingertips. It does not contain hair follicles and has more sweat glands compared to thin skin. Additionally, thick skin contains epidermal ridges. Therefore, all of the statements provided are true for thick skin.

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  • 42. 

    The systems that provide homeostatis are: 

    • Cardiovascular and Integumentary

    • Nervous system and Endocrine

    • Cardiovascular and respiratory systems

    • Respiratory and muscular systems

    • Urinary and integumentary system

    Correct Answer
    A. Nervous system and Endocrine
    Explanation
    The nervous system and endocrine system are responsible for maintaining homeostasis in the body. The nervous system regulates and coordinates bodily functions through electrical impulses, while the endocrine system secretes hormones that regulate various processes. Together, they work to control body temperature, blood pressure, heart rate, and other vital functions to keep the body in balance. The cardiovascular, respiratory, muscular, urinary, and integumentary systems also play important roles in maintaining homeostasis, but the nervous system and endocrine system are specifically mentioned in the question as the correct answer.

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  • 43. 

    This organelle contains ribosomes, which synthesis proteins 

    • Rough endoplasmic reticulum

    • Cytososol

    • Nucleus

    • Centriole

    • Mitochondria

    Correct Answer
    A. Rough endoplasmic reticulum
    Explanation
    The rough endoplasmic reticulum is the correct answer because it is an organelle that contains ribosomes. Ribosomes are responsible for protein synthesis, and they are attached to the surface of the rough endoplasmic reticulum. This organelle plays a crucial role in protein production and transportation within the cell.

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  • 44. 
    Which of the following represents pseudostratified columnar epithelium?  - ProProfs

    Which of the following represents pseudostratified columnar epithelium? 

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. D
  • 45. 

    Epithelial tissue

    • Is used as a covering

    • Is used as a lining

    • Is used in glands

    • Has a free surface

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Epithelial tissue is a type of tissue that is used as a covering for organs and body surfaces, as well as a lining for body cavities and tubes. It is also present in glands, where it helps in the secretion of various substances. Epithelial tissue is characterized by having a free surface, which is exposed to the external environment or a body cavity. Therefore, all of the statements mentioned in the options are correct and describe the different functions and characteristics of epithelial tissue.

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  • 46. 

    Connective tissues do NOT include 

    • Bone

    • Blood cells

    • Cartilage

    • Tendons

    • Liver cells

    Correct Answer
    A. Liver cells
    Explanation
    Connective tissues are a type of tissue that provide support and structure to the body. They include bone, blood cells, cartilage, and tendons. However, liver cells do not belong to the category of connective tissues. Liver cells, also known as hepatocytes, are a type of parenchymal cells found in the liver and are responsible for various metabolic functions such as detoxification, protein synthesis, and storage of nutrients. They do not have the characteristics of connective tissues, which are mainly responsible for connecting, supporting, and protecting other tissues and organs in the body.

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  • 47. 

    Where is the most common location for adipose tissue?

    • Subcutaneous layer deep to skin

    • Lining bones

    • Covering brain

    • Inside ear canal

    • Cartilage

    Correct Answer
    A. Subcutaneous layer deep to skin
    Explanation
    Adipose tissue is commonly found in the subcutaneous layer deep to the skin. This layer is located beneath the skin and is responsible for storing and insulating fat. Adipose tissue serves as an energy reserve and helps regulate body temperature. It also provides cushioning and protection to the underlying structures.

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  • 48. 

    This layer is composed of keratinized stratisfied squamous epithelium

    • Epidermis

    • Dermis

    • Hypodermis

    • Subcutaneous

    • Corpuscle

    Correct Answer
    A. Epidermis
    Explanation
    The epidermis is the outermost layer of the skin and is composed of keratinized stratified squamous epithelium. This layer provides protection for the underlying tissues and organs, as well as regulating the loss of water and electrolytes. It also contains melanocytes, which produce melanin, the pigment responsible for skin color. The epidermis is constantly renewing itself through a process called keratinization, where new cells are formed at the bottom layer and pushed to the surface, where they eventually die and are sloughed off.

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  • 49. 

    These perform special functions in cellular growth, maintenance and reproduction 

    • Organelles

    • Cytoskeleton

    • Cytoplasm

    • Cytosol

    • Nucleus

    Correct Answer
    A. Organelles
    Explanation
    Organelles are specialized structures within a cell that perform specific functions. They are responsible for cellular growth, maintenance, and reproduction. Examples of organelles include the nucleus, mitochondria, endoplasmic reticulum, and Golgi apparatus. Each organelle has a specific role in the cell, such as DNA storage and replication, energy production, protein synthesis, and transport of molecules. Therefore, organelles are the correct answer as they are directly involved in the special functions related to cellular growth, maintenance, and reproduction.

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