Fertilisation

Q. The process of fusion of male and female gametes is called _____.

1. seed formation
2. reproduction
3. fertilisation
4. pollination

Q. Question 7
How does the process of fertilisation take place in flowers?

Q.

Will seeds germinate in vinegar?

Q. During the process of fertilization the pollen tube of the pollen grains usually enters the embryo sac through
A. Integument
B. Nucellus
C. Chalaza
D. Micropyle

Q. The reproduction method in which plants produce a new plant without using seeds is known as:

1. Sexual reproduction
2. Asexual reproduction
3. Bisexual reproduction
4. Fertilization

Q. Question 1 (d)
Fill in the blanks:
(d) The fusion of male and female gametes is termed as ___.

Q. Datura belong to which categories of flower?

1. Complete flower
2. Incomplete flower
3. Unisexual flower
4. Bisexual flower

Q. The process of fusion of female and male gametes to form a zygote is known as ________ .

1. fruit formation
2. dispersal
3. pollination
4. fertilisation

Q. The process of fertilisation and formation of zygote is known as reproduction.

Q.

Is tomato a parthenocarpic fruit?

Q.

An embryo of seed develops from the (zygote/cotyledons).

Q. Why offsprings produced by plants in asexual reproduction are identical ?

Q.

A fertilized egg becomes a seed.

1. True
2. False

Q.

What do you understand about sexual reproduction in plants? Explain. [5 MARKS]

Q. Question 10 (b)
Tick (√) the correct answer:
(b) The process of fusion of the male and the female gametes is called
(i) fertilisation
(ii) pollination
(iii) reproduction
(iv) seed formation

Q. Ovary matures to form the while ovule forms the after fertilisation.

1. seed
2. fruit
3. flower
4. carpel
5. bud

Q.

Fill in the blanks with correct terms.

The male and female gametes fuse to form a....(a)... during the process of ....(b)....

This grows into an ....(c).. which is enclosed within a seed.

After fertilisation the ovules develop into ....(d).... and the ovary develops into a ....(e) ....

Q.

The seed contains the future plant or embryo which develops into seedling under appropriate conditions.

1. True
2. False

Q.

Given below is a diagram representing a pistil. Identify the labeled parts. [2 MARKS]

Q.

The male and female gametes fuse to form the __ during fertilization.

Q. ___develops from the ovule of a plant.

Q.

Give one word for the following:

Process of fusion of male and female gametes.

Q. After fertilisation seed develops from the _____.

1. ovary
2. ovule
3. stigma
4. pollen

Q.

After fertilization name the part develops into the seeds

1. Ovary

2. Ovule

3. Pollen grains

4. None of the above

Q. The entry of pollen tube into the ovule through micropyle is called

1. porogamy
2. mesogamy
3. chalazogamy
4. All of the above

Q.

Name and explain about the male and the female parts of a flower. [3 MARKS]

Q. After fertilisation ovary develops into fruit.

1. True
2. False

Q.

State whether the following statement is correct or incorrect:
A fertilised egg becomes seed.

Q.

Write two advantages of vegetable propagation.

Q.

Which of the following is the first step after the pollen is transferred to stigma?

1. It fertilises the egg cell

2. It germinates to form the pollen tube

3. It grows to meet the corolla

4. It withers