Biology for nursing entrance exams worksheet with answers

Free printable Biology for nursing entrance exams 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

What does the enzyme DNA ligase do?

  1. AIt unwinds the DNA double helix
  2. BIt joins pieces of DNA together
  3. CIt makes RNA from a DNA template
  4. DIt cuts DNA at specific sites
2.Easy

What is the shape of a DNA molecule?

  1. AA triple helix
  2. BA single straight strand
  3. CA double helix
  4. DA flat ring
3.Easy

What is the single most important way to prevent the spread of infection in hospitals?

  1. AHand hygiene
  2. BWearing a hair net
  3. COpening the windows
  4. DGiving every patient antibiotics
4.Medium

What is the role of cholesterol in animal cell membranes?

  1. AIt forms a rigid wall around the cell
  2. BIt stores the cell's genetic information
  3. CIt carries glucose molecules across the membrane into the cell
  4. DIt keeps membrane fluidity stable as temperature changes
5.Medium

Identical twins raised in different homes have different body weights. What does this show?

  1. AMutations happened in every cell of one twin
  2. BBody weight is controlled by a single gene
  3. CThe phenotype depends on environment as well as genotype
  4. DThe twins must have different genotypes for body weight genes
6.Medium

Which element is found in all amino acids but not in carbohydrates?

  1. AHydrogen
  2. BCarbon
  3. CNitrogen
  4. DOxygen
7.Hard

A mother with blood type A (genotype Iᴬi) and a father with type B (Iᴮi) have children. Which blood types are possible?

  1. AOnly A, B and AB
  2. BOnly A and B
  3. COnly AB
  4. DA, B, AB and O
8.Hard

A cube-shaped cell has sides of 2 µm. What is its surface area-to-volume ratio?

  1. A1 : 3
  2. B6 : 1
  3. C2 : 1
  4. D3 : 1

Answer key

  1. 1. B · It joins pieces of DNA together
  2. 2. C · A double helix
  3. 3. A · Hand hygiene
  4. 4. D · It keeps membrane fluidity stable as temperature changes
  5. 5. C · The phenotype depends on environment as well as genotype
  6. 6. C · Nitrogen
  7. 7. D · A, B, AB and O
  8. 8. D · 3 : 1

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