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 are the three parts of a nucleotide?

  1. AA phosphate, a sugar and a nitrogen base
  2. BA carboxyl group, a base and a lipid
  3. CAn amino group, a sugar and a fatty acid
  4. DA glycerol, a phosphate and a fatty acid
2.Easy

Which substances are used up in aerobic cellular respiration?

  1. ACarbon dioxide and water
  2. BGlucose and carbon dioxide
  3. COxygen and water
  4. DGlucose and oxygen
3.Easy

Which definition of a species is most often used for animals?

  1. AAll the animals that eat the same food
  2. BAll of the different organisms that live together in one area
  3. CAny organisms that look alike
  4. DA group that can interbreed and have fertile offspring
4.Medium

By which process does oxygen enter a cell and carbon dioxide leave it?

  1. AEndocytosis in small vesicles
  2. BSimple diffusion through the lipid bilayer
  3. CActive transport by membrane pumps
  4. DFacilitated diffusion through glucose carriers
5.Medium

Which sequence is complementary to the DNA strand A-T-G-C-C-A?

  1. AA-T-G-C-C-A
  2. BT-A-C-G-G-T
  3. CG-C-A-T-T-G
  4. DU-A-C-G-G-U
6.Medium

Nearly all cells in a person's body contain the same DNA. Why do nerve cells and muscle cells look and work so differently?

  1. ADifferent genes are switched on in each type of cell
  2. BEach cell type has a different set of chromosomes
  3. CNerve cells have lost the genes for muscle proteins
  4. DMuscle cells have extra DNA from mitochondria
7.Hard

A dihybrid cross gives offspring in a ratio of about 9 : 3 : 3 : 1. What does this suggest?

  1. ABoth parents are heterozygous for two genes that assort independently
  2. BThe two genes are tightly linked on the same chromosome
  3. COne parent is AaBb and the other is homozygous aabb
  4. DBoth parents are homozygous dominant for both genes
8.Hard

Scientists put a human gene into bacteria to make a protein. Why do they use a DNA copy made from the mature mRNA instead of the gene taken straight from human DNA?

  1. ABacteria cannot read human codons
  2. BBacteria cannot remove introns
  3. CBacteria have no ribosomes
  4. DHuman DNA has no start codons

Answer key

  1. 1. A · A phosphate, a sugar and a nitrogen base
  2. 2. D · Glucose and oxygen
  3. 3. D · A group that can interbreed and have fertile offspring
  4. 4. B · Simple diffusion through the lipid bilayer
  5. 5. B · T-A-C-G-G-T
  6. 6. A · Different genes are switched on in each type of cell
  7. 7. A · Both parents are heterozygous for two genes that assort independently
  8. 8. B · Bacteria cannot remove introns

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