Ch. 1 Quiz- Cellular Biology

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Banjo
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Ch. 1 Quiz- Cellular Biology
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2014-02-12 10:03:45
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cellular biology
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  1. For a cell to engage in active transport processes it requires: 
    a. An expenditure of energy
    b. Appropriate fuel
    c. ATP
    d. All of the above are correct
    D
  2. Which of the following can transport substances against or up the concentration gradient?
    a. A Active transport
    b. Osmosis
    c. Dialysis
    d. Facilitated diffusion
    A
  3. Ribosomes:
    a. Are found on smooth endoplasmic reticulum
    b. Are the sites for cellular protein synthesis
    c. Are synthesized in the cytosol
    d. Are made of protein clathrin
    e. Conduct nerve impulses
    A
  4. Cellular swelling is:
    a. Reversible
    b. Evident early in all types of cellular injury
    c. Associated with hyperkalemia
    d. Is caused by hypoparathyroidism
    B
  5. A deranged cellular growth observable in uterine cervical epithelium is: 
    a. Atrophy
    b. Hyperplasia
    c. Hyperthrophy
    c. Dysplasia
    e. Metaplasia
    D
  6. Lines kidney tubules
    Simple cuboidal
  7. Lines urinary bladder
    transitional
  8. Lines the upper respiratory tract
    Simple columnar, ciliated
  9. Caused by the tuberculosis infection
    Caseous necrosis
  10. Tissue death
    Gangrene
  11. Which are principal parts of a eukaryotic cell?
    a. Fat, carbohydrate, and protein
    b. Minerals and water
    c. Organelles
    d. Phospholipids and protein
    C
  12. Caveolae:
    a. serve as repositories for some receptors
    b. provide a route for transport into a cell
    c. relay signals into cells
    d. a and b are correct
    c. a, b, and c are correct
    E
  13. A vault is:
    a. an organelle
    b. barrel-shaped
    c. believed to transport mRNA to ribosomes
    d. a and b are correct
    e. a,b, and c are correct
    E
  14. Which of the following is inconsistent with the others?
    a. Diffusion
    b. Osmosis
    c. Hydrostatic pressure
    d. Phagocytosis
    D
  15. Imagine that you have an aqueous (water) solution A and an aqueous solution B separated by a membrane that is permeable to the solvent but is not permeable to the solute. If solution A is isotonic to human blood and solution B is hypotonic to human blood, then:
    a. net diffusion of the solute will occur from side B to side A
    b. net diffusion of the solute will occur from side A to side B
    c. net osmosis will occur from side B to side A
    d. net osmosis will occur from side A to side B
    C
  16. Which statement is true about cytoplasm?
    a. It is located outside the nucleus
    b. It provides support for organelles
    c. It is mostly water
    d. All of the above are true
    e. Only a and b are true
    D
  17. Activities occurring in the cytosol include:
    a. intermediary metabolism
    b. ribosomal protein synthesis
    c. conversion of glucose to glycogen
    d. a and b are correct
    e. a,b, and c are correct
    E
  18. Ligands that bind with membrane receptors include which of the following?
    a. Hormones
    b. Antigens
    c. Neurotransmitters
    d. Drugs
    c. Infectious agents
    All
  19. The products from the metabolism of glucose include which of the following?
    a. Kilocalories
    b. CO2
    c. H2O
    d. ATP
    All
  20. Identify the correct alphabetical sequence of events for initiation and conduction of a nerve impulse
    a. Sodium moves into cell
    b. Potassium leaves cell
    c. Sodium permeability changes
    d. Resting potential is reestablished
    e. Potassium permeability changes
    C,A,E,B,D
  21. Potocytosis:
    a. involves the cellular uptake of small molecules
    b. opens and closes caveolae
    c. does not form a membrane-enclosed vesicle
    d. a and b are correct
    e. a,b, and c are correct
    E
  22. Cell junctions:
    a. coordinate activities of cells within tissues
    b. are an impermeable part of the plasma membrane
    c. hold cells together
    d. a and c are correct
    e. b and c are correct
    D
  23. Cells respond to external stimuli by activation of a variety of signal transduction pathways. Signaling molecules cause all of the following except:
    a. acceleration/initiation of intracellular protein kinases
    b. arrest of cellular growth
    c. apoptosis
    d. conversion of an intracellular signal into an extra-cellular response
    D
  24. Signal recognition particles
    attach to and detach from ribosomes
  25. Metaphase
    chromatid pair alignment
  26. Mitochondria
    "generation plant" for ATP
  27. Gating
    enables uninjured cells to seal themselves away from injured cells
  28. Rafts
    help organize membrane components
  29. Paracrine signaling
    acts on nearby cells

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