Cell biology worksheet with answers

Free printable Cell biology worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

Which statement is part of the cell theory?

  1. AAll cells are the same size
  2. BAll cells contain a nucleus
  3. CAll cells can perform photosynthesis
  4. DAll cells come from pre-existing cells
2.Easy

Which organelle produces most of the cell's ATP?

  1. ARibosome
  2. BGolgi apparatus
  3. CLysosome
  4. DMitochondrion
3.Easy

What is the function of ribosomes?

  1. ALipid storage
  2. BProtein synthesis
  3. CPhotosynthesis
  4. DCell division
4.Medium

What role does cholesterol play in animal cell membranes?

  1. AIt is the main carrier of glucose
  2. BIt helps keep membrane fluidity stable across temperatures
  3. CIt makes the membrane completely rigid at every temperature
  4. DIt forms channels for ions
5.Medium

A point mutation changes a codon for an amino acid into a stop codon. What type of mutation is this?

  1. ASilent mutation
  2. BMissense mutation
  3. CFrameshift mutation
  4. DNonsense mutation
6.Medium

Which cytoskeletal filaments mainly give cells resistance to mechanical stress, such as keratin in skin?

  1. AMicrotubules
  2. BActin microfilaments
  3. CSpindle fibres
  4. DIntermediate filaments
7.Hard

In Griffith's 1928 experiment, mice injected with heat-killed smooth (S) pneumococci plus live rough (R) bacteria died. What did this show?

  1. AR bacteria are virulent on their own
  2. BHeat does not kill S bacteria
  3. CA substance from the dead S cells transformed R cells into a virulent form
  4. DMice make S bacteria from R bacteria
8.Hard

A plant cell placed in a concentrated salt solution loses water and its membrane pulls away from the cell wall. What is this called?

  1. AHaemolysis
  2. BCytolysis
  3. CPlasmolysis
  4. DTurgor

Answer key

  1. 1. D · All cells come from pre-existing cells
  2. 2. D · Mitochondrion
  3. 3. B · Protein synthesis
  4. 4. B · It helps keep membrane fluidity stable across temperatures
  5. 5. D · Nonsense mutation
  6. 6. D · Intermediate filaments
  7. 7. C · A substance from the dead S cells transformed R cells into a virulent form
  8. 8. C · Plasmolysis

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