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 is the resolution of a microscope?

  1. AHow bright the image appears
  2. BHow large the field of view is
  3. CIts ability to show two close points as separate
  4. DHow many times larger it makes the image of the specimen
2.Easy

What is an ecosystem?

  1. AThe weather in a particular region
  2. BA single organism together with all of its organs and tissues
  3. CThe living things in an area and their non-living surroundings
  4. DAll the members of one species in an area
3.Easy

Which of these is qualitative data?

  1. AThe patient weighs 68 kg
  2. BThe urine sample is dark yellow
  3. CThe pulse rate is 72 beats per minute
  4. DThe wound is 3 cm long
4.Medium

When does crossing over between homologous chromosomes happen?

  1. AIn prophase I of meiosis
  2. BIn the S phase of interphase
  3. CIn telophase II of meiosis
  4. DIn anaphase of mitosis
5.Medium

A plant with genotype Aa is crossed with an aa plant. What fraction of the offspring is expected to show the recessive trait?

  1. A3/4
  2. B1/2
  3. CNone of them
  4. D1/4
6.Medium

Why is the ABO blood group system an example of multiple alleles?

  1. AEach person carries three different alleles of the ABO gene
  2. BThe gene is found on several chromosomes
  3. CThere are three alleles of the gene in the population
  4. DBlood type is controlled by many separate genes
7.Hard

A study finds that coffee drinkers have more lung cancer. Later it is found that coffee drinkers in the study also smoked more. What is smoking in this study?

  1. AThe control group
  2. BA placebo
  3. CA confounding variable
  4. DThe dependent variable
8.Hard

A patient breathes very slowly, so carbon dioxide builds up in the blood. What happens to the blood pH, and why?

  1. AIt falls, because CO₂ forms carbonic acid in the blood
  2. BIt rises, because CO₂ removes hydrogen ions
  3. CIt rises, because CO₂ is a base
  4. DIt stays the same, because CO₂ does not dissolve in blood

Answer key

  1. 1. C · Its ability to show two close points as separate
  2. 2. C · The living things in an area and their non-living surroundings
  3. 3. B · The urine sample is dark yellow
  4. 4. A · In prophase I of meiosis
  5. 5. B · 1/2
  6. 6. C · There are three alleles of the gene in the population
  7. 7. C · A confounding variable
  8. 8. A · It falls, because CO₂ forms carbonic acid in the blood

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