Fertilisation

Q.

What will happen if a flower is not pollinated?

1. The flower will die without producing seeds

2. The flower will live and a branch will just grow

3. The flower will die instantly

4. The flower will stop growing but will still be alive

Q.

Where does syngamy occur in the process of internal fertilization?

Q. Give the difference in the function between the following parts:​

(d) Pollen grains and ovule

Q.

Which of the following carries the male gametes to the ovule containing the female gamete?

1. pollen tube

2. filament

3. style

4. stigma

Q. A viviparous snake gives birth to its young ones.

1. True
2. False

Q.

The ovule of a flower develops into a (fruit/seed).

Q.

Label the parts of embryo in a seed:

1. 1- Radicle, 2- Plumule

2. 1- Plumule, 2- Radicle

3. 1- Seed coat 2-Cotyledon

4. 2- Seed coat 1-Cotyledon

Q. Entry of pollen tube through the chalazal end is called

1. Porogamy
2. Mesogamy
3. Chalazogamy
4. Syngamy

Q.

Pollination leads to ___

1. formation of flowers

2. formation of new insects

3. fertilization

4. transfer of pollens

Q.

What happens after the ovules are pollinated?

Q.

Name the parts of the embryo and state the function of each.

Q.

Seed is modification of

1. Ovary

2. Ovule

3. Thalamus

4. All of these

Q.

Name the following:

Three methods of artificial vegetative propagation

Q.

After a flower on a mango tree is fertilized, which part of the flower develops into the seed?

1. Ovule

2. Stamen

3. Anther

4. Ovary

Q.

Which part of the flower forms the fruit?

Q. How is the process of pollination different from fertilization?

Q.

1. Both A and B
2. Asexual
3. Sexual
4. None of above

Q. Which of the following changes occur in a flower after fertilisation?

1. The ovary remains attached to the stalk
2. Flower grows into fruit
3. Ovules develops into seeds
4. All of the above

Q. The transfer of pollen grains from stamen to pistil is called .

1. transpiration
2. pollination
3. pollen transfer
4. fertilisation

Q. The diagram shows the process of fertilization in flowering plants. Observe it carefully it carefully and answer the questions.
Name the parts of the flower that develops into:
a) Seed and
b) Fruit after fertilisation

Q. Structures inside ovary are

1. anthers
2. ovules
3. style
4. carpel

Q. The ovary after fertilization is converted into

1. Fruit
2. Embryo
3. Seed
4. Endosperm

Q.

1. Sexual
2. Asexual
3. Both A and B
4. None of above

Q. Double fertilisation is characteristics of which of the following plant category?

1. Gymnosperms
2. Pteridophytes
3. Angiosperms
4. Bryophytes
5. Thallophytes

Q. Match the following parts of a flower with its post fertilization status

Q.

Ovary matures to form the (i)____ while ovule forms (ii)____.

1. (i) carpel, (ii) fruit

2. (i) fruit, (ii) seed

3. (i) seed, (ii) cotyledons

4. (i) seed, (ii) fruit

Q. Why cotyledons are called embryonic leaves?

Q. What are the components in the embryo of a plant? Does it contain proteins

Q. The part of the embryo above the cotyledons is called ...........

1. Epicotyl
2. Hypocotyl
3. Plumule
4. Radicle

Q.

Ovary matures to form the ___(i)____ while ovule forms ____(ii)____.

1. (i) fruit, (ii) seed

2. (i) seed, (ii) fruit

3. (i) seed, (ii) cotyledons

4. (i) carpel, (ii) fruit