Multicellular Organisms
Homework 6
Homework Exercise 6 - Reproduction
1. The diagrams below represent human gametes.
(a) Identify Cell 1 and Cell 2
(2)
(b) Name structures A, B, C, D and E.
(5)
(c)The diagram below represents part of the human female and male
reproductive systems.
Select the correct letters from the diagram above to indicate where
where Cell 1 and Cell 2 would be produced.
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(1)
Multicellular Organisms
Homework 6
2. The diagram below represents some of the processes involved in human
reproduction.
The letter A represents the chromosomes in each cell
Cell W
Cell X
aa
AA
a
gametes
A
and
A
a
and
a
gametes
a
fertilisation
Cell Y
Aa
Copy and select one option in each set of brackets to make the
following sentence about fertilisation correct.
Cell Y is a
body cell
zygote
two gametes
formed when the
divide
fuse
cytoplasm
nuclei
of the
at fertilisation.
(1)
3. Which of the following pairs of human cells have the same number
of chromosomes?
A Liver cell and sperm cell
B Kidney cell and sperm cell
C Kidney cell and liver cell
D Liver cell and egg cell
(1)
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Multicellular Organisms
Homework 6
4. The table below shows the results of an investigation into the effect of
temperature on egg laying in adult red spider mites.
What can be concluded from the information in the above table?
(2)
5. The diploid number of chromosomes in a cell from a sheep is 54.
(i) Which line in the table below correctly identifies the number of
chromosomes for the cell type shown?
A
B
C
D
Sheep Cell Type
heart
nerve
sperm
zygote
(1)
Number of Chromosomes
27
54
54
27
(ii) Define the term haploid
(1)
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Multicellular Organisms
Homework 6
6. Diagram of a flower shown below.
(a) Where are the female gametes produced in a flower?
(1)
(b) In a flower, where are male gametes produced?
(1)
7. Which one of the following diagrams represents the process of
fertilisation in plants?
A. sperm
egg
B.
male
zygote
zygote
C.
pollen
female
zygote
gamete
ovule
D.
zygote
ovary
Testes
zygote
(1)
8. Copy and complete the following table to show which of the following
cells are diploid and which are haploid
CELLS: stomach cell, sperm cell, egg cell, pollen grain, muscle cell
Diploid cells
Haploid cells
(2)
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