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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Name: ____________________   Date: ____________

1.Easy

Which of these diseases is caused by a virus?

  1. AMalaria
  2. BInfluenza
  3. CAthlete's foot
  4. DTuberculosis
2.Easy

What is the main structure of the cell membrane?

  1. AA thick wall of peptidoglycan
  2. BA single sheet of starch molecules
  3. CA rigid layer of cellulose fibres and lignin
  4. DA phospholipid bilayer with embedded proteins
3.Easy

What is a phenotype?

  1. AThe observable trait, such as eye colour
  2. BThe number of chromosomes in a gamete
  3. CThe order of bases in a gene
  4. DThe pair of alleles that an organism carries for a gene
4.Medium

Why are stains such as iodine or methylene blue added to cells on a microscope slide?

  1. ATo make the cells divide
  2. BTo make structures easier to see
  3. CTo keep the cells alive for longer
  4. DTo make the cells larger
5.Medium

Why are G–C base pairs held together more strongly than A–T pairs?

  1. AG and C are both purines, so they fit more tightly
  2. BG–C pairs form three hydrogen bonds, and A–T pairs form two
  3. CG–C pairs are joined by strong covalent bonds instead of hydrogen bonds
  4. DA–T pairs are found only in RNA
6.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. BNone of them
  3. C1/2
  4. D1/4
7.Hard

PCR starts with one double-stranded DNA molecule, and the number of copies doubles each cycle. How many copies are there after 10 cycles?

  1. A1024
  2. B512
  3. C20
  4. D100
8.Hard

Fresh liver is dropped into hydrogen peroxide and bubbles form quickly. Boiled liver gives no bubbles. What is the best conclusion?

  1. ALiver contains an enzyme that is destroyed by boiling
  2. BThe bubbles are carbon dioxide from respiration
  3. CBoiled liver contains more hydrogen peroxide than fresh liver
  4. DHydrogen peroxide is broken down only by heat

Answer key

  1. 1. B · Influenza
  2. 2. D · A phospholipid bilayer with embedded proteins
  3. 3. A · The observable trait, such as eye colour
  4. 4. B · To make structures easier to see
  5. 5. B · G–C pairs form three hydrogen bonds, and A–T pairs form two
  6. 6. C · 1/2
  7. 7. A · 1024
  8. 8. A · Liver contains an enzyme that is destroyed by boiling

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