Bio 115 Final Exam Review Quiz

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Questions: 17 | Attempts: 450

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A revision for a final exam requires planning and prioritizing. For instance, reproduction entails human, animal and plant reproductions. Wind or animal propagates plant reproduction and it is by way of pollination. Bio 115 Final Exam Review Quiz will create clear understanding of what needs to be done when getting ready for a final exam. Good luck.


Questions and Answers
  • 1. 

    Maintenance of a constant or desired environment in the cell or in the body is known as:

    • A.

      Homeostasis

    • B.

      Diffusion

    • C.

      Concentration Gradient

    • D.

      Buffer State

    Correct Answer
    A. Homeostasis
    Explanation
    Homeostasis refers to the maintenance of a stable and balanced internal environment in the cell or body. It involves various physiological processes that regulate temperature, pH, and other factors to ensure optimal conditions for cellular functions. Homeostasis is crucial for the proper functioning of cells and organisms, as it allows them to adapt and respond to changes in the external environment while keeping the internal environment relatively constant. Diffusion, concentration gradient, and buffer state are not correct answers as they do not specifically relate to the maintenance of a constant or desired environment.

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  • 2. 

    Which of the following organelles is NOT involved in the process of making a protein from a DNA sequence through protein synthesis and packaging?

    • A.

      Nucleus

    • B.

      Golgi Apparatus

    • C.

      Endoplasmic Reticulum

    • D.

      Centrosome

    • E.

      Ribosome

    Correct Answer
    D. Centrosome
    Explanation
    The centrosome is not involved in the process of making a protein from a DNA sequence through protein synthesis and packaging. The nucleus contains the DNA and is responsible for transcription of the DNA into mRNA. The mRNA then moves to the ribosomes, where translation occurs to synthesize proteins. The endoplasmic reticulum and Golgi apparatus are involved in protein synthesis and packaging, as they help in folding, modifying, and transporting proteins. However, the centrosome is responsible for organizing microtubules during cell division and does not play a direct role in protein synthesis.

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  • 3. 

    Check the box next to the main functions of the endoplasmic reticulum.

    • A.

      Membrane synthesis

    • B.

      Storage of DNA

    • C.

      Ribosome Docking

    • D.

      Option4

    Correct Answer(s)
    A. Membrane synthesis
    C. Ribosome Docking
    Explanation
    The endoplasmic reticulum is responsible for various functions in the cell. One of its main functions is membrane synthesis, where it produces lipids and proteins that are used to build the cell's membranes. Additionally, the endoplasmic reticulum plays a crucial role in ribosome docking, which is the process of attaching ribosomes to the ER membrane for protein synthesis. Therefore, the correct answer includes membrane synthesis and ribosome docking as the main functions of the endoplasmic reticulum.

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  • 4. 

    Check the box next to the molecule/s that are most likely to be transported across the cell membrane by a protein carrier.

    • A.

      Water

    • B.

      Sodium Ions

    • C.

      Proteins

    • D.

      Carbohydrates

    Correct Answer(s)
    B. Sodium Ions
    C. Proteins
    D. Carbohydrates
    Explanation
    Sodium ions, proteins, and carbohydrates are most likely to be transported across the cell membrane by a protein carrier. This is because these molecules are relatively large and/or charged, making it difficult for them to pass through the lipid bilayer of the cell membrane without the assistance of a protein carrier. Water, on the other hand, is a small and uncharged molecule that can easily pass through the lipid bilayer via simple diffusion, so it does not require a protein carrier for transport.

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  • 5. 

    In which phase of the cell cycle does the cell replicate mitochondria, ribosomes, and the centrosomes?

    • A.

      G1 Phase

    • B.

      S Phase

    • C.

      G2 Phase

    • D.

      M Phase

    Correct Answer
    C. G2 Phase
    Explanation
    During the G2 phase of the cell cycle, the cell prepares for cell division by replicating its organelles and other cellular components. This includes the replication of mitochondria, ribosomes, and centrosomes. The G2 phase follows the S phase, during which DNA replication occurs. Once the cell has completed the G2 phase, it enters the M phase (mitosis) where it divides into two daughter cells. Therefore, the correct answer is G2 Phase.

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  • 6. 

    The main goal of mitosis is to:

    • A.

      Duplicate DNA

    • B.

      Decrease cell size

    • C.

      Cause cell death

    • D.

      Produce new cells

    Correct Answer
    D. Produce new cells
    Explanation
    Mitosis is the process of cell division that results in the production of two identical daughter cells. During mitosis, the DNA is duplicated and evenly distributed to the daughter cells. The main goal of mitosis is to produce new cells that are genetically identical to the parent cell. This allows for growth, repair, and replacement of damaged or old cells in the body. Therefore, the correct answer is "Produce new cells."

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  • 7. 

    In a molecule of glucose, chemical energy is stored in ______________ bonds.

    Correct Answer
    Covalent
    Explanation
    In a molecule of glucose, chemical energy is stored in covalent bonds. Covalent bonds are formed when two atoms share electrons, creating a strong bond between the atoms. In glucose, carbon, hydrogen, and oxygen atoms are bonded together through covalent bonds. These bonds store energy that can be released through chemical reactions, such as cellular respiration, where glucose is broken down to release energy for the cell.

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  • 8. 

    Check all of the following that make up the composition of Areolar tissue.

    • A.

      Collagen

    • B.

      Elastin

    • C.

      Macrophages

    • D.

      Fibroblasts

    Correct Answer(s)
    A. Collagen
    B. Elastin
    D. Fibroblasts
    Explanation
    Areolar tissue is a loose connective tissue found in various parts of the body. It is composed of collagen, elastin, and fibroblasts. Collagen provides strength and support to the tissue, elastin allows for flexibility and recoil, and fibroblasts are responsible for producing the extracellular matrix and maintaining the tissue's structure. Macrophages, on the other hand, are immune cells that are not typically found in areolar tissue.

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  • 9. 

    The stomach, liver, kidneys, and pancreas are all found in what body cavity?

    • A.

      Cranial

    • B.

      Vertebral

    • C.

      Pelvic

    • D.

      Abdominal

    Correct Answer
    D. Abdominal
    Explanation
    The stomach, liver, kidneys, and pancreas are all organs that are located in the abdominal cavity. The abdominal cavity is the space located between the diaphragm and the pelvic cavity. It contains various organs involved in digestion, metabolism, and waste elimination. These organs work together to process food, filter waste products, and produce digestive enzymes and hormones. Therefore, the correct answer is abdominal.

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  • 10. 

    Which of the following is not involved in controlling the rate of breathing?

    • A.

      CO2 in the blood

    • B.

      Physical activity

    • C.

      Fear

    • D.

      Blood pH

    • E.

      Smell

    Correct Answer
    E. Smell
    Explanation
    Smell is not involved in controlling the rate of breathing. The rate of breathing is primarily regulated by factors such as CO2 levels in the blood, blood pH, and physical activity. Smell, on the other hand, is related to the sense of olfaction and does not directly influence the respiratory system or the rate of breathing.

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  • 11. 

    In the alveoli in the lungs the partial pressure of oxygen is ___________ and the partial pressure of carbon dioxide is ___________ allowing for gas exchange with the blood.

    • A.

      High;low

    • B.

      Low;low

    • C.

      Low;high

    • D.

      High;high

    Correct Answer
    A. High;low
    Explanation
    In the alveoli in the lungs, the partial pressure of oxygen is high and the partial pressure of carbon dioxide is low. This concentration gradient allows for gas exchange with the blood. Oxygen moves from an area of high partial pressure in the alveoli to an area of low partial pressure in the blood, while carbon dioxide moves from an area of high partial pressure in the blood to an area of low partial pressure in the alveoli. This exchange ensures that oxygen is taken up by the blood and carbon dioxide is released from the blood into the alveoli to be exhaled.

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  • 12. 

    Both sets of vocal cords are responsible for generating sound in the larynx.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    True Vocal Cords- Produce Sound
    Flase Vocal Cords- Support and control movement of the true vocal cords

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  • 13. 

    Cardiac muscle cells are connected by what structure, which allows them to contract as a single unit?

    • A.

      Nuclear membrane

    • B.

      Intercalated discs

    • C.

      Spindle fibers

    • D.

      Z-lines

    Correct Answer
    B. Intercalated discs
    Explanation
    Cardiac muscle cells are connected by intercalated discs, which allow them to contract as a single unit. Intercalated discs are specialized cell junctions that contain gap junctions and desmosomes. Gap junctions allow for the passage of ions and small molecules between adjacent cells, facilitating electrical coupling and synchronization of contraction. Desmosomes provide mechanical strength and stability to the tissue. These intercalated discs ensure coordinated and efficient contraction of the cardiac muscle, enabling the heart to pump blood effectively.

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  • 14. 

    The building block of carbohydrates is ____________. 

    Correct Answer
    Saccharides
    Explanation
    Carbohydrates are organic compounds composed of carbon, hydrogen, and oxygen. The building blocks of carbohydrates are saccharides, which are simple sugars or monosaccharides. These saccharides can combine through dehydration synthesis to form more complex carbohydrates such as disaccharides (two sugar units) or polysaccharides (many sugar units). Therefore, saccharides are the fundamental units that make up carbohydrates.

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  • 15. 

    The building block for Nucleic acids is ___________.

    Correct Answer
    Nucleotides
    Explanation
    Nucleotides are the building blocks for nucleic acids. Nucleic acids, such as DNA and RNA, are composed of long chains of nucleotides. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base. The sequence of nucleotides in a nucleic acid determines the genetic information and plays a crucial role in protein synthesis and other cellular processes. Therefore, nucleotides are essential for the structure and function of nucleic acids.

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