Human Anatomy And Chemical Process: Quiz!

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  • 1/23 Questions

    The condition in which the body's internal environment stays within physiological limits is:

    • Responsiveness
    • Homeostasis
    • Differentiation
    • Growth
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About This Quiz

Anatomy refers to the inspection of the structure and connection between body parts. A chemical process refers to a technique through which two or more chemicals or chemical compounds can be changed. This quiz will assess your knowledge of Human Anatomy and topics related to atomic structure, chemical bonds and chemical reactions, cell processes, cellular respiration, and the cell cycle.

Human Anatomy And Chemical Process: Quiz! - Quiz

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  • 2. 

    Hydrogen bonds are:

    • Mutual attraction of oppositely charged ions

    • 2 or more atoms that share electrons

    • The attraction of oppositely charged parts of molecules; weak bond

    Correct Answer
    A. The attraction of oppositely charged parts of molecules; weak bond
    Explanation
    Hydrogen bonds are formed between molecules when there is a strong electrostatic attraction between a positively charged hydrogen atom and a negatively charged atom, such as oxygen or nitrogen. These bonds are relatively weak compared to covalent or ionic bonds, but they play a crucial role in many biological and chemical processes. The attraction between the oppositely charged parts of molecules allows for the formation of stable structures, such as the double helix of DNA, and helps to determine the properties of substances like water.

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  • 3. 

    The science that deals with the study of the body are called:

    • Physiology

    • Cytology

    • Anatomy

    • Biology

    Correct Answer
    A. Anatomy
    Explanation
    Anatomy is the correct answer because it is the science that deals with the study of the body. It focuses on the structure and organization of different body parts, such as organs, tissues, and cells. Anatomy helps us understand how these body parts are connected and how they function together to maintain overall health and well-being. It is an essential field of study for medical professionals and researchers to diagnose and treat diseases, as well as to advance our knowledge of the human body.

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  • 4. 

    The science that deals with functions of the body part are called:

    • Physiology

    • Cytology

    • Anatomy

    • Biology

    Correct Answer
    A. Physiology
    Explanation
    Physiology is the correct answer because it is the science that specifically focuses on the functions and processes of the body parts. It involves studying how different organs and systems work together to maintain homeostasis and carry out various bodily functions. Cytology is the study of cells, anatomy is the study of the structure of body parts, and biology is the broader study of living organisms. Therefore, physiology is the most appropriate choice for a science that deals with the functions of the body parts.

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  • 5. 

    Covalent bonds are:

    • Mutual attraction of oppositely charged ions

    • 2 or more atoms that share electrons

    • The attraction of oppositely charged parts of molecules; weak bond

    Correct Answer
    A. 2 or more atoms that share electrons
    Explanation
    Covalent bonds occur when two or more atoms share electrons. This type of bond is formed between nonmetal atoms, as they have similar electronegativities and are more likely to share electrons rather than transfer them. In a covalent bond, the shared electrons are attracted to the positively charged nuclei of both atoms, creating a strong bond. This type of bond is different from ionic bonds, which involve the transfer of electrons between atoms.

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  • 6. 

    In a positive feedback system, the response of the effector:

    • Enhances the original stimulus

    • Eliminates the original stimulus

    • Reverses the original stimulus

    • Doesn't change the original stimulus

    Correct Answer
    A. Enhances the original stimulus
    Explanation
    In a positive feedback system, the response of the effector enhances the original stimulus. This means that when the effector receives a signal from the control center to respond to a stimulus, it amplifies or strengthens the effects of that stimulus. This leads to an increase in the original stimulus, creating a feedback loop that continues to reinforce and intensify the response. This process is often seen in biological systems, such as blood clotting or childbirth, where the initial stimulus triggers a cascade of events that ultimately leads to a greater response.

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  • 7. 

    Bases:

    • Release H+ ions

    • Donate H+ ions

    • Neither

    Correct Answer
    A. Release H+ ions
    Explanation
    The correct answer is "Release H+ ions". Bases are substances that can accept or donate electrons, and in water, they release hydroxide ions (OH-) or H+ ions. However, in this case, the bases specifically release H+ ions, which is a characteristic of acidic substances. Therefore, the correct answer is that bases release H+ ions.

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  • 8. 

    The function of proteins:

    • Store genetic info

    • Insulation, protect (packing medium), absorb vitamins

    • Fuel

    • Energy source, protect (antibodies), support, biological catalyst

    Correct Answer
    A. Energy source, protect (antibodies), support, biological catalyst
    Explanation
    Proteins have multiple functions in the body. They serve as an energy source, providing fuel for various metabolic processes. They also play a crucial role in protecting the body by acting as antibodies, which defend against foreign substances and pathogens. Proteins provide support to tissues and organs, contributing to their structural integrity. Additionally, proteins act as biological catalysts, speeding up chemical reactions in the body. Therefore, the given answer accurately identifies the functions of proteins.

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  • 9. 

    A reversible reaction:

    • Can revert to original reactancts; AB A + B

    • Breaks apart; AB --> A + B

    • Requires energy to build things; A + B --> AB

    • Synthesis & decomposition combo; AB + CD --> AD + CB

    Correct Answer
    A. Can revert to original reactancts; AB A + B
    Explanation
    A reversible reaction refers to a chemical reaction that can proceed in both the forward and reverse directions. In this case, the reaction AB A + B can revert back to its original reactants AB when conditions allow. This means that the products A and B can combine to form the reactant AB again. Reversible reactions are characterized by their ability to reach a state of dynamic equilibrium, where the forward and reverse reactions occur at equal rates.

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  • 10. 

    The building blocks of proteins are:

    • Amino acids

    • Glycerol

    • Nucleotides

    • Mono/Di/Polysaccharides

    • All but C

    Correct Answer
    A. Amino acids
    Explanation
    The building blocks of proteins are amino acids. Proteins are made up of long chains of amino acids, which are linked together by peptide bonds. Each amino acid has a unique side chain, or R-group, which gives it its specific properties. These amino acids can be combined in different sequences to create a wide variety of proteins with different structures and functions. Glycerol, nucleotides, and mono/di/polysaccharides are not the building blocks of proteins, although they are important components of other biological molecules.

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  • 11. 

    Active transport:

    • Substances move from an area of low concentration to high concentration

    • Substances move from an area of high concentration to low concentration

    • H2O molecules move from an area of high concentration to low concentration

    • Substances move from an area of high concentration to low concentration with help of transport proteins

    • Substances move from an area of low concentration to high concentration, against concentration gradient

    Correct Answer
    A. Substances move from an area of low concentration to high concentration, against concentration gradient
    Explanation
    Active transport is the process by which substances move from an area of low concentration to high concentration, against the concentration gradient. This process requires the use of transport proteins to actively pump the substances across the cell membrane. Unlike passive transport, which occurs down the concentration gradient, active transport requires energy to move substances against the natural flow. This allows cells to maintain a higher concentration of certain substances inside the cell compared to the surrounding environment.

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  • 12. 

    Facilitated transport:

    • Substances move from an area of low concentration to high concentration

    • Substances move from an area of high concentration to low concentration

    • H2O molecules move from an area of high concentration to low concentration

    • Substances move from an area of high concentration tolow concentration w/ help of transport proteins

    • Substances move from an area of low concentration to high concentration, against concentration gradient

    Correct Answer
    A. Substances move from an area of high concentration tolow concentration w/ help of transport proteins
    Explanation
    Facilitated transport refers to the movement of substances from an area of high concentration to low concentration with the assistance of transport proteins. These transport proteins act as channels or carriers, facilitating the movement of specific substances across the cell membrane. This process does not require energy expenditure and occurs along the concentration gradient.

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  • 13. 

    A synthesis reaction:

    • Breaks apart; AB --> A + B

    • Can revert to original reactancts; AB A + B

    • Synthesis & decomposition combo; AB + CD --> AD + CB

    • Requires energy to build things; A + B --> AB

    Correct Answer
    A. Requires energy to build things; A + B --> AB
    Explanation
    A synthesis reaction refers to a chemical reaction where two or more substances combine to form a more complex product. In this case, the reaction A + B --> AB represents a synthesis reaction because it involves the combination of two separate substances (A and B) to form a single product (AB). The statement "Requires energy to build things" is an accurate explanation for this reaction because synthesis reactions typically require an input of energy to facilitate the formation of the new compound.

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  • 14. 

    Diffusion:

    • Substances move from an area of low concentration to high concentration

    • Substances move from an area of high concentration to low concentration

    • H2O molecules move from an area of high concentration to low concentration

    • Substances move from an area of high concentration tolow concentration w/ help of transport proteins

    • Substances move from an area of low concentration to high concentration, against concentration gradient

    Correct Answer
    A. Substances move from an area of high concentration to low concentration
    Explanation
    This statement correctly describes the process of diffusion. Diffusion is the movement of substances from an area of high concentration to an area of low concentration. This process occurs naturally and does not require the use of energy or transport proteins.

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  • 15. 

    In a negative feedback system, the response of the effector:

    • Enhances the original stimulus

    • Eliminates the original stimulus

    • Reverses the original stimulus

    • Doesn't change original stimulus

    Correct Answer
    A. Reverses the original stimulus
    Explanation
    In a negative feedback system, the response of the effector is to reverse the original stimulus. This means that when the effector detects a change in the body's internal environment, it works to counteract that change and bring the body back to its original state. For example, if the body temperature rises, the effector response would be to initiate cooling mechanisms to lower the temperature back to normal. This helps maintain homeostasis and keep the body's internal conditions stable.

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  • 16. 

    Osmosis:

    • Substances move from an area of low concentration to high concentration

    • Substances move from an area of high concentration to low concentration

    • H2O molecules move from an area of high concentration to low concentration

    • Substances move from an area of high concentration tolow concentration w/ help of transport proteins

    • Substances move from an area of low concentration to high concentration, against concentration gradient

    Correct Answer
    A. H2O molecules move from an area of high concentration to low concentration
    Explanation
    This answer is correct because osmosis is the movement of water molecules from an area of high concentration (low solute concentration) to an area of low concentration (high solute concentration) across a selectively permeable membrane. This movement occurs to equalize the concentration of solute on both sides of the membrane.

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  • 17. 

    Ionic bonds are:

    • Mutual attraction of oppositely charged ions

    • 2 or more atoms that share electrons

    • The attraction of oppositely charged parts of molecules; weak bond

    Correct Answer
    A. Mutual attraction of oppositely charged ions
    Explanation
    Ionic bonds are formed through the mutual attraction of oppositely charged ions. In this type of bond, one atom donates electrons to another atom, resulting in the formation of positively charged ions (cations) and negatively charged ions (anions). These opposite charges attract each other, creating a strong bond between the ions. This bond is typically found in compounds composed of metals and non-metals, where the metal atom loses electrons and the non-metal atom gains electrons to achieve a stable electron configuration. Ionic bonds are characterized by their high melting and boiling points and their ability to conduct electricity when dissolved or melted.

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  • 18. 

    The function of lipids:

    • Insulate, protect (packing medium), absorb vitamins

    • Insulate, protect (packing medium), absorb vitamins, fuel

    • Store & transmit genetic info

    • Support, protect (antibodies), absorb vitamins,

    Correct Answer
    A. Insulate, protect (packing medium), absorb vitamins, fuel
    Explanation
    Lipids serve multiple functions in the body. They act as an insulating layer, providing thermal insulation to help regulate body temperature. They also serve as a protective layer, acting as a packing medium around organs to cushion and protect them from injury. Lipids are also involved in the absorption and transportation of fat-soluble vitamins, such as vitamins A, D, E, and K. Additionally, lipids are an important source of fuel for the body, providing energy when needed.

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  • 19. 

    The building blocks of carbodydrates are:

    • Nucleotides

    • Amino acids

    • Fatty acids & glycerol

    • Mono/Di/Polysaccharides

    • All of the above

    Correct Answer
    A. Mono/Di/Polysaccharides
    Explanation
    The correct answer is "Mono/Di/Polysaccharides". Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen atoms. They serve as a major source of energy for the body. The building blocks of carbohydrates are monosaccharides (single sugar molecules), disaccharides (two monosaccharides linked together), and polysaccharides (long chains of monosaccharides). Nucleotides are the building blocks of nucleic acids, amino acids are the building blocks of proteins, and fatty acids and glycerol are the building blocks of lipids, not carbohydrates. Therefore, the correct answer is mono/di/polysaccharides.

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  • 20. 

    The function of carbohydrates:

    • Fuel

    • Fuel, insulation, form steroid hormones

    • Support, fuel, biological catalyst

    • Store & transmit genetic info

    • Fuel, store & transmit genetic info

    Correct Answer
    A. Fuel
    Explanation
    Carbohydrates serve as a fuel source for the body. When consumed, they are broken down into glucose, which is then used by cells to produce energy through cellular respiration. This energy is vital for various bodily functions such as muscle contraction, organ function, and maintaining body temperature. Carbohydrates are the body's preferred source of energy, especially for high-intensity activities. Therefore, the statement "Fuel" accurately describes the function of carbohydrates.

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  • 21. 

    Acids:

    • Release H+ ions

    • Donate H+ ions

    • Neither

    Correct Answer
    A. Donate H+ ions
    Explanation
    Acids are substances that can donate hydrogen ions (H+) to a solution. When acids dissolve in water, they release H+ ions, which are then available to react with other substances. This process is known as donating H+ ions. Therefore, the correct answer is "Donate H+ ions."

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  • 22. 

    Lipids are made up of:

    • Carbon

    • Hydrogen

    • Oxygen

    • Nitrogen

    • Sulfur

    Correct Answer(s)
    A. Carbon
    A. Hydrogen
    A. Oxygen
    Explanation
    Lipids are organic compounds that are composed of carbon, hydrogen, and oxygen atoms. These three elements are the basic building blocks of lipids. Carbon forms the backbone of the lipid molecule, while hydrogen and oxygen atoms are attached to the carbon atoms. Nitrogen and sulfur are not typically found in lipids, so they are not part of their composition. Therefore, lipids are made up of carbon, hydrogen, and oxygen.

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  • 23. 

    Nucleic acids are made up of:

    • Carbon

    • Hydrogen

    • Oxygen

    • Nitrogen

    • Phosphorus

    Correct Answer(s)
    A. Carbon
    A. Hydrogen
    A. Oxygen
    A. Nitrogen
    A. Phosphorus
    Explanation
    Nucleic acids are macromolecules that are composed of smaller subunits called nucleotides. These nucleotides consist of a sugar molecule (which contains carbon, hydrogen, and oxygen), a phosphate group (which contains phosphorus), and a nitrogenous base (which contains nitrogen). Therefore, nucleic acids are made up of carbon, hydrogen, oxygen, nitrogen, and phosphorus.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 22, 2008
    Quiz Created by
    Caitlsmith
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