How do Organisms Reproduce? PYQ Class 10

CBSE

1

The correct/true statement(s) for a bisexual flower is/are:

(i) They possess both stamen and pistil.
(ii) They possess either stamen or pistil.
(iii) They exhibit either self-pollination or cross-pollination.
(iv) They cannot produce fruits on their own.

[1 marks]

2

Draw labelled diagrams to show different stages of budding in Hydra.

[2 marks]

3
(a)
(i)

Write the functions of the following parts of human female reproductive system :

(I) Ovary
(II) Fallopian tube
(III) Uterus
(ii)

State briefly two contraceptive methods used by human males.
  OR
(b)
(i)

Differentiate between self-pollination and cross-pollination.
(ii)

Identify A, B and C in the diagram given below and write one function of each.

question image

[5 marks]

4

In which of the following organisms, multiple fission is a means of asexual reproduction?

[1 marks]

5
(A)
(i) Name three techniques/devices used by human females to avoid pregnancy. Mention the side effects caused by each.
(ii) What will happen if in a human female (a) fertilisation takes place, (b) an egg is not fertilised ?
  OR
(B)
(i) Draw a diagram showing spore formation in Rhizopus and label the (a) reproductive and (b) non-reproductive parts. Why does Rhizopus not multiply on a dry slice of bread?
(ii) Name and explain the process by which reproduction takes place in Hydra.

[5 marks]

6

Select the INCORRECT match (between the plant and its vegetative part) from the following:

[1 mark]

7

(a) Name the parts of a bisexual flower that are not directly involved in reproduction.

(b) Differentiate between self pollination and cross pollination. List any two significance of pollination.

(c) What is the fate of ovules and ovary after fertilization in a flower?

[5 marks]