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JAMB UTME Biology 2000 past questions and answers

This 2000 JAMB UTME Biology set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2000 set with instant marking.

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Sample JAMB UTME Biology 2000 questions

1. Which property of the cell surface membrane enables a cell to regulate the substances entering and leaving it?
  1. Selective permeability
  2. Ability to synthesize starch
  3. Presence of cellulose fibres
  4. Ability to store genetic information

Answer: A. Selective permeability

The selectively permeable membrane controls the passage of substances into and out of the cell.

2. A cell that requires a large supply of energy for active transport is likely to contain many
  1. ribosomes
  2. mitochondria
  3. vacuoles
  4. lysosomes

Answer: B. mitochondria

Mitochondria release energy through aerobic respiration to support energy-requiring processes.

3. What happens to a plant cell placed in a concentrated sugar solution for some time?
  1. It becomes turgid as water enters
  2. Its cell wall dissolves
  3. Its cytoplasm pulls away from the cell wall
  4. It divides immediately

Answer: C. Its cytoplasm pulls away from the cell wall

Water leaves the cell by osmosis, causing the protoplast to shrink away from the cell wall in plasmolysis.

4. An object 0.1 mm long produces an image 2 mm long; what is the magnification?
  1. 0.05 times
  2. 2 times
  3. 10 times
  4. 20 times

Answer: D. 20 times

Magnification is image size divided by actual size, so 2 mm / 0.1 mm = 20.

5. In the binomial name of an organism, which part is written first and begins with a capital letter?
  1. The genus name
  2. The species description
  3. The family name
  4. The order name

Answer: A. The genus name

A binomial name places the capitalized genus name before the lowercase specific epithet.

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