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115 practice exam 1

Quiz by Deborah Harris

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22 questions
Show answers
  • Q1
    The individual credited with first observing the cell nucleus was ________.
    Matthias Schleiden
    Anton van Leeuwenhoek
    Robert Brown
    Theodor Schwann
    30s
  • Q2
    The ________ regulates the movement of molecules in and out of the cell.
    plasma membrane
    ribosomes
    cytoplasm
    nucleus
    30s
  • Q3
    The ________ is/are involved in the synthesis of lipids.
    Golgi complex
    rough endoplasmic reticulum
    smooth endoplasmic reticulum
    ribosomes
    30s
  • Q4
    The Golgi complex ________.
    synthesizes lipids
    receives proteins made in the rough ER and chemically modifies them
    synthesizes proteins for export from the cell
    stores nucleic acids
    30s
  • Q5
    The ________ contains hydrolytic enzymes for the digestion of proteins, lipids, nucleic acids, and polysaccharides.
    nucleus
    lysosome
    rough endoplasmic reticulum
    Golgi complex
    30s
  • Q6
    The interior surface area of mitochondria is greatly increased by ________.
    microfilaments
    nucleoli
    cristae
    the matrix
    30s
  • Q7
    What is the ultimate fate of oxygen gas (O2) in cellular respiration?
    It is attached to glucose.
    It is attached to pyruvate.
    It is converted to water.
    It is respired as CO2.
    30s
  • Q8
    In the absence of ATP synthase, animal cells would not be able to ________.
    produce ATP
    carry out pyruvate oxidation
    carry out oxidative phosphorylation
    create a proton gradient
    30s
  • Q9
    During glycolysis, glucose molecules are broken down by breaking the carbon-hydrogen bonds that are present and forming carbon-oxygen bonds. What is this chemical phenomena called?
    oxidation
    reduction
    electrolysis
    protonation
    30s
  • Q10
    What molecule is responsible for carrying the acetyl group from pyruvate into the citric acid cycle?
    ATP
    FADH2
    CoA
    NADH
    30s
  • Q11
    Which molecule(s) is/are responsible for delivering the high energy electrons from the citric acid cycle to the electron transfer system?
    NADH only
    FADH2 only
    Both NADH and FADH2
    ATP and ADP
    30s
  • Q12
    How efficient is cellular respiration in extracting the energy stored in the bonds of glucose?
    80 percent
    30 percent
    60 percent
    20 percent
    30s
  • Q13
    Which of the following levels of organization are correctly arranged from smallest to largest?
    tissue, organ system, organ
    organ system, organ, tissue
    organ system, tissue, organ
    tissue, organ, organ system
    30s
  • Q14
    A group of specialized cells of similar structure and function is a(n)
    organ.
    tissue.
    cell cluster.
    organ system.
    30s
  • Q15
    Glial cells function to
    support and nourish neurons.
    conduct electrical impulses.
    release secretions on to a free surface.
    secrete collagen fibers into the extracellular matrix.
    30s

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