IGCSE Biology Paper-2: Specimen Questions with Answers 108 - 109 of 203

Question 108

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Question

MCQ▾

The diagram shows a cell seen under the light microscope.

The diagram shows a cell seen under the light microscope

The Diagram Shows a Cell Seen under the Light Microscope

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Which labels are correct?

Choices

Choice (4)
a.X-cell wall, Y- tonoplast
b.X-cell membrane, Y- vacuole
c.X-cell wall, Y- cytoplasm
d.X-cell membrane, Y- tonoplast

Answer

b.

Explanation

Plant cell structure

Plant Cell Structure

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Question 109

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Question

MCQ▾

The function of egg cell is

Choices

Choice (4)
a.It supplies a haploid set of chromosomes to the future embryo.
b.It supplies food reserves to the embryo.
c.It provides most of the cytoplasm to the embryo.
d.All a. , b. and c. are correct

Answer

d.

Explanation

  • Egg cells, or ova, are the cells utilized by female organisms to reproduce offspring. In contrast, the reproductive cells used by males are referred to as sperm. In mammals, a new individual is formed when an egg from the mother and a sperm from the father come together and allow their genetic material to fuse.
  • Egg cells also contain many mitochondria, which supply the energy required for cell replication and division. Mitochondrial deterioration occurs with age and is thought to contribute to the difficulties experienced by many women trying to conceive children in their later years.