Thursday 21 February 2013

Cell Biology


Multiple choice Cells questions
1. To enter or leave a cell, substances must pass through
  • a. a microtubule.
  • b. the Golgi apparatus.
  • c. a ribosome.
  • d. the nucleus.
  • e. the plasma membrane.
2. Bacterial cell are prokaryotic; in comparison to a typical eukaryotic cell they would
  • a. be smaller.
  • b. have a smaller nucleus.
  • c. lack a plasma membrane.
  • d. have fewer internal membranous compartments.
  • e. have a greater variety of organelles.
3. You would expect a cell with an extensive Golgi apparatus to
  • a. make a lot of ATP.
  • b. secrete a lot of material.
  • c. move actively.
  • d. perform photosynthesis.
  • e. store large quantities of food
4. Which of the following correctly matches an organelle with its function?
  • a. mitochondrion . . . photosynthesis
  • b. nucleus . . . cellular respiration
  • c. ribosome . . . manufacture of lipids
  • d. lysosome . . . movement
  • e. central vacuole . . . storage
5. Of the following organelles, which group is involved in manufacturing substances needed by the cell?
  • a. lysosome, vacuole, ribosome
  • b. ribosome, rough ER, smooth ER
  • c. vacuole, rough ER, smooth ER
  • d. smooth ER, ribosome, vacuole
  • e. rough ER, lysosome, vacuole
6. A cell has mitochondria, ribosomes, smooth and rough ER, and other parts. Based on this information, it could not be
  • a. a cell from a pine tree.
  • b. a grasshopper cell.
  • c. a yeast (fungus) cell.
  • d. a bacterium.
  • e. Actually, it could be any of the above.
7. The electron microscope has been particularly useful in studying bacteria, because
  • a. electrons can penetrate tough bacterial cell walls.
  • b. bacteria are so small.
  • c. bacteria move so quickly they are hard to photograph.
  • d. with few organelles present, bacteria are distinguished by differences in individual macromolecules.
  • e. their organelles are small and tightly packed together
8. Cell fractionation is the most appropriate procedure for preparing ____ for study.
  • a. isolated cells which are normally found tightly attached to neighbouring cells
  • b. cells without a functional cytoskeleton
  • c. isolated organelles
  • d. the basic macromolecules
  • e. bone and other similar cells which are situated within a mineral framework
9. Which of the following clues would tell you whether a cell is prokaryotic or eukaryotic?
  • a. the presence or absence of a rigid cell wall
  • b. whether or not the cell is partitioned by internal membranes
  • c. the presence or absence of ribosomes
  • d. whether or not the cell carries out cellular metabolism
  • e. whether or not the cell contains DNA
10. Sara would like to film the movement of chromosomes during cell division. Her best choice for a microscope would be a
  • a. light microscope, because of its resolving power.
  • b. transmission electron microscope, because of its magnifying power.
  • c. scanning electron microscope, because the specimen is alive.
  • d. transmission electron microscope, because of its great resolving power.
  • e. light microscope, because the specimen is alive.

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