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.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy

Which part of the cytoskeleton forms the mitotic spindle?

  1. AMicrotubules
  2. BActin filaments
  3. CIntermediate filaments
  4. DCollagen fibres
2.Easy

Which base is found in RNA instead of thymine?

  1. AUracil
  2. BAdenine
  3. CGuanine
  4. DCytosine
3.Easy

Which organelle breaks down hydrogen peroxide using the enzyme catalase?

  1. ALysosome
  2. BGolgi apparatus
  3. CPeroxisome
  4. DRibosome
4.Medium

The rough endoplasmic reticulum is "rough" because it:

  1. AIs studded with ribosomes
  2. BHas a cell wall
  3. CContains DNA
  4. DStores calcium only
5.Medium

Which cell junction seals neighbouring epithelial cells together and stops fluid leaking between them?

  1. ADesmosome
  2. BGap junction
  3. CTight junction
  4. DHemidesmosome
6.Medium

A newly made protein has an N-terminal signal sequence. Where is it directed?

  1. AInto the nucleus
  2. BInto the endoplasmic reticulum
  3. CDirectly to the cytosol for use there
  4. DInto the mitochondrial matrix
7.Hard

Where in the cell does the electron transport chain of aerobic respiration take place?

  1. AMitochondrial matrix
  2. BCytoplasm
  3. COuter mitochondrial membrane
  4. DInner mitochondrial membrane
8.Hard

In Tay–Sachs disease, a ganglioside builds up in nerve cells because of a missing enzyme. In which organelle does the build-up occur?

  1. AMitochondrion
  2. BLysosome
  3. CPeroxisome
  4. DSmooth ER

Answer key

  1. 1. A · Microtubules
  2. 2. A · Uracil
  3. 3. C · Peroxisome
  4. 4. A · Is studded with ribosomes
  5. 5. C · Tight junction
  6. 6. B · Into the endoplasmic reticulum
  7. 7. D · Inner mitochondrial membrane
  8. 8. B · Lysosome

Full step-by-step solutions: practise this topic on examproblems.com.