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WAEC WASSCE Biology 2001 past questions and answers

This 2001 WAEC WASSCE 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 2001 set with instant marking.

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Sample WAEC WASSCE Biology 2001 questions

1. Which organelle is the main site of aerobic respiration in a typical animal cell?
  1. Mitochondrion
  2. Ribosome
  3. Golgi apparatus
  4. Lysosome

Answer: A. Mitochondrion

Mitochondria contain the enzymes and membranes used in aerobic respiration.

2. Which structure gives a plant cell much of its rigidity and is made mainly of cellulose?
  1. Cell membrane
  2. Cell wall
  3. Cytoplasm
  4. Nuclear membrane

Answer: B. Cell wall

The cellulose cell wall supports the plant cell and helps it resist bursting.

3. A drop of dye spreads through still water without stirring because its molecules move from a region of higher concentration to a region of lower concentration; this is
  1. osmosis
  2. active transport
  3. diffusion
  4. transpiration

Answer: C. diffusion

Diffusion is the net movement of particles down a concentration gradient.

4. At the end of normal mitosis, each daughter cell has
  1. half the parent's chromosome number
  2. twice the parent's chromosome number
  3. a different chromosome number from the parent
  4. the same chromosome number as the parent

Answer: D. the same chromosome number as the parent

Mitosis produces daughter cells with the same chromosome number as the parent cell.

5. An image of a cell is 24 mm long, while the actual cell is 0.08 mm long; what is the magnification?
  1. 300x
  2. 30x
  3. 3x
  4. 0.003x

Answer: A. 300x

Magnification equals image size divided by actual size, so 24 / 0.08 = 300x.

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