SC-100 Class 23 Homework Assignment

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SC-100Class 23 Homework Assignment

• 1. Which phrase best describes the inside of a
  cell?
• a. comprised of protoplasm
• b. full of complicated structures
• c. basically a vacuum
• d. has not yet been thoroughly researched
• e. only a b

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SC-100Unit 15 Homework Assignment

• 2. What limits the resolving power of all
  microscopes?
• a. the wavelength of the light used
• b. the wave frequency of the light used
• c. the wave amplitude of the light used
• d. the transparency of the object
• e. all of the above

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SC-100Unit 15 Homework Assignment

• 3. What is NOT the function of the cell membrane?
• a. reproduction
• b. separates inside from outside
• c. transmits materials outside to inside
• d. protection
• e. isolation

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SC-100Unit 15 Homework Assignment

• 4. The hydrophobic ends of a cell membrane's
  lipid bilayer are
• a. pointed to the outside.
• b. pointed to the inside.
• c. pressed together.
• d. in contact with hydrophilic ends of lipids.
• e. not in contact with hydrophilic ends of lipids.

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SC-100Unit 15 Homework Assignment

• 5. What advantage does the structure of the cell
  membrane afford the cell?
• a. The design of the cell membrane prevents
  invasion by most viruses.
• b. This arrangement is the lowest possible energy
  state.
• c. The cell membrane structure mediates
  temperature extremes.
• d. The membrane can be adapted to locomotion.
• e. The membrane arrangement dehydrates cell
  molecules.

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SC-100Unit 15 Homework Assignment

• 6. Which pair of organelles transfer energy in
  the cell?
• a. cytoskeleton and nucleus
• b. mitochondria and chloroplasts
• c. chloroplasts and nucleus
• d. cell wall and vacuoles
• e. cell membrane and nucleus

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SC-100Unit 15 Homework Assignment

• 7. Which is true of ATP?
• a. ATP is a molecule.
• b. ATP is an energy carrier.
• c. ATP contains sugar.
• d. ATP contains phosphorous.
• e. all the above

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SC-100Unit 15 Homework Assignment

• 8. In the process of photosynthesis
• a. electromagnetic radiation is converted to
  electric and magnetic energy
• b. electromagnetic radiation is converted to
  lipids
• c. light energy is metabolized
• d. light energy is converted to atomic energy
• e. light energy is converted to chemical energy

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SC-100Unit 15 Homework Assignment

• 9. An organelle not found in the cells of
  animals is
• a. Golgi apparatus.
• b. chloroplast.
• c. ribosome.
• d. mitochondrion.
• e. nucleus.

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SC-100Unit 15 Homework Assignment

• 10. Which of the following is a stored energy
  end product of fermentation?
• a. glucose
• b. alcohol
• c. yeast
• d. starch
• e. lactic acid

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SC-100Unit 15 Homework Assignment

• 11. What does current theory say about the
  origin of the nucleus?
• a. A small cell was engulfed by a larger cell.
• b. A large cell was broken apart by a smaller
  cell.
• c. A large cell was merged with another large
  cell.
• d. Two small cells formed a symbiotic
  relationship.
• e. The first cell contained a nucleus as a basic
  component.

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SC-100Unit 15 Homework Assignment

• 12. Only cells can produce other cells. T or F?
• 13. Cytoplasm is the fluid that takes up spaces
  between the organelles of a cell. T or F?
• 14. All cells have cell membranes. T or F?
• 15. Cell membranes can deform to engulf a
  particle and transport it within the cell. T or
  F?
• 16. All cells have nuclei. T or F?
• 17. Metabolism is a process by which a cell
  derives energy from the surroundings. T or F?
• 18. Fermentation takes place in the presence of
  oxygen. T or F?