Pollination

Q.

Which of the following are the most colourful and attractive part of a flower?

1. Anthers

2. Sepals

3. Petals

4. Gynoecium

Q. Brightly coloured , fragrant flower which produces nectar , gets pollinated by _________.

1. wind
2. insects
3. animals
4. birds

Q.

In the diagram of a bisexual flower given as figure draw the missing part and label the parts marked (a), (b) and (c). Also label the missing part.

Q.

How many ovaries are present in a typical flower?

Q.

What protects the flower bud?

1. Hairs

2. Roots

3. Leaves

4. Sepals

Q. The transfer of pollen grains from anther to stigma is called ____.

1. fragmentation
2. pollination
3. fertilisation
4. budding

Q.

Which one of the following pollination is autogamous?

1. Homogamy

2. Xenogamy

3. Chasmogamy

4. Cleistogamy

Q. Which part of the flower develops into a fruit after fertilisation?

1. Ovary
2. Style
3. Petal
4. Stamen

Q.

The process of the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant of the same species is known as

1. Cross pollination

2. Fertilization

3. Self pollination

4. None of the above

Q.

Pollination refers to the
(a)transfer of pollen from the anther to the ovary
(b)transfer of male gametes from the anther to the stigma
(c)transfer of pollen grains from anther to stigma
(d)transfer of pollen from anther to ovule

Q.

In the figure given below, label the part marked (i), (ii) and (iii).

Q. Which is an incomplete flower-rose, apple, papaya

Q. The process of pollen sac reaching the stigma of a flower is called pollination.

1. True
2. False

Q.

Which part of the flower is usually green in color?

1. Petals

2. Carpel

3. Sepals

4. Stamen

Q. Question 1 (c)
Fill in the blanks:
(c) The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as ___

Q. Pollen tube is formed so that

1. So cross-pollination may occur
2. So the male gametes can reach the ovule
3. So the pollination can be done by bees
4. So the egg cell can develop in the ovule

Q. Which of the following is NOT a part of the pistil?

1. Ovary
2. Stigma
3. Style
4. Anther

Q.

In the figure of a flower below, label the parts whose functions are mentioned. Give their corresponding names.

(a)The part which contains pollen grains.
(b)The part where the female gamete is formed.
(c) The female reproductive part, where pollen grains germinate.
(d)The colourful part of flower which attacts insects.

Q. Statement 1: In asexual reproduction new plants are obtained from seeds.

Statement 2: Vegetative propagation and fragmentation are examples of asexual reproduction.

1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both the statements are correct.
4. Both the statements are incorrect.

Q. The stalk of the stamen which bears the anther is known as the ______.

1. pistil
2. filament
3. stigma
4. style

Q. Describe the different methods of asexual reproduction. Give examples.

Q.

Which part of the embryo develops into a root?

Q.

Bougainvillea flower is an example of

1. an incomplete flower

2. having a large nectary

3. water pollination

4. large colourful bracts

Q.

Match the following
$\begin{array}{cccc}A.& \text{Zoophily}& 1.& \text{Pollination by birds}\\ B.& \text{Ornithophily}& 2.& \text{Pollination by insects}\\ C.& \text{Entomophily}& 3.& \text{Pollination by bats}\\ D.& \text{Chiropterophily}& 4.& \text{Pollination by animals}\end{array}$

1. A – 4, B – 1, C – 2, D – 3

2. A – 4, B – 2, C – 1, D – 3

3. A – 3, B – 2, C – 1, D – 4

4. A – 1, B – 2, C – 3, D – 4

Q. Which of the following is a method of artificial vegetative propagation is used commercially by farmers?

1. Grafting
2. Sporing
3. Fragmentation
4. Fission

Q.

The carpel consist of

1. Anther and filament

2. Style, Stigma, Ovary

3. Ovary, anther, female gamete

4. Ovary, stigma, anther

Q.

Explain the different parts of a flower. [5 MARKS]

Q. What is cross-pollination? Mention 2 agents of cross-pollination. Give 1 example of each. [3 MARKS]

Q.

Which of the following are asexual modes of reproduction in plants?

I: Pollination

II: Vegetative propagation

III: Fragmentation

IV: Spore formation

1. I and III

2. II and III

3. I, II, III and IV

4. II, III and IV

Q. The contains the egg cell.

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