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 statement is part of the cell theory?

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

What are the building blocks (monomers) of DNA called?

  1. AAmino acids
  2. BNucleotides
  3. CMonosaccharides
  4. DFatty acids
3.Easy

Where is the genetic material of a eukaryotic cell mainly stored?

  1. AIn the ribosomes
  2. BIn the nucleus
  3. CIn the vacuole
  4. DIn the cell membrane
4.Medium

Why does DNA replication need primase?

  1. APrimase proofreads the new DNA
  2. BDNA polymerase can only extend an existing strand, so a short RNA primer is needed
  3. CPrimase unwinds the DNA double helix
  4. DPrimase joins the Okazaki fragments together once their RNA primers have been removed
5.Medium

What role does cholesterol play in animal cell membranes?

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

Where does RNA polymerase bind to start transcription of a gene?

  1. AAt the promoter
  2. BAt the terminator
  3. CAt the start codon
  4. DAt the stop codon
7.Hard

Bacteria moved to a much colder environment change the fatty acids in their membranes. Which change keeps the membrane fluid?

  1. AMore unsaturated fatty acids
  2. BLonger fatty acid tails
  3. CFewer membrane proteins
  4. DMore saturated fatty acids
8.Hard

Tumour suppressor genes such as p53 normally:

  1. AProduce growth factors
  2. BSpeed up cell division so that damaged cells are quickly replaced
  3. CStop the cell cycle or trigger apoptosis when DNA is damaged
  4. DMake cells immortal

Answer key

  1. 1. C · All cells come from pre-existing cells
  2. 2. B · Nucleotides
  3. 3. B · In the nucleus
  4. 4. B · DNA polymerase can only extend an existing strand, so a short RNA primer is needed
  5. 5. C · It helps keep membrane fluidity stable across temperatures
  6. 6. A · At the promoter
  7. 7. A · More unsaturated fatty acids
  8. 8. C · Stop the cell cycle or trigger apoptosis when DNA is damaged

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