Reproduction in Flowering Plants

Q.

Name the male and female reproductive parts in plants?

Q.

What is self-sterility?

Q.

Name two flowers each with joined and separated sepals

Q.

Longest pollen grain is found in which plant?

Q.

The term neuter is given to a flower in which both

1. Calyx and corolla are present

2. Calyx and corolla are absent.

3. Androecium and gynoecium are present.

4. Androecium and gynoecium are absent.

Q.

If the petals of a flower are joined together, then the pistil is joined to the petal. Correct the following statement and rewrite it.

Q. What happens to the pollen grain after it is transferred from the stamen to stigma?

1. It fertilizes the egg cell
2. It withers away
3. It germinates to form the pollen tube
4. It grows to meet the corolla

Q.

Draw and label a diagram of the following:
A stamen.

Q.

When a pollen grain falls on the stigma of the pistil, the pollen grain grows a ______ downwards through the style towards the female gametes in the ovary.

Q.

Receptive part of carpel is

1. Placenta

2. Ovary

3. Stigma

4. Style

Q.

Dust-like fine yellow particles in anthers are ____________.

Q.

The technical term used to describe the arrangement of stamens in a China rose flower (Hibiscus rosa-sinensis) is

1. polyadelphous

2. monadelphous

3. diadelphous

4. polyandrous

Q. State true or false: Flowers are attractive solely for the purpose of bringing the insect to it and enable pollination.

1. True
2. False

Q.

A stamen has two parts, ___ and ___.

Q. ___ is a specialized condensed part of a plant which bears floral leaves and carries out reproduction.

1. Leaf
2. Stem
3. Flower
4. Root

Q. Which part of a flower is adapted to attract honeybees?

1. Petals
2. Stigma
3. Sepals
4. Ovary

Q.

Explain the following term:

Incomplete flower

Q. What is the difference between self pollination and cross pollination?

Q.

Draw a labeled diagram of a longitudinal section of a flower.

Q. In a flower, the male and female reproductive parts are ............. respectively.

1. Pistil and stamen
2. Stamen and pistil
3. Petals and pistil
4. Stamen and petals

Q.

Give one word for the following:

Present in anthers of the flowers.

Q.

Name two types of flowers depending on the presence of male and female reproductive parts.

Q.

After___________ (pollination/ fertilization) floral parts dry and fall off while the ovary enlarges to form fruit with ovules becoming seeds.

Q. Which part of a plant is adapted to attract honeybees?

1. Leaf
2. Root
3. Flower
4. Shoot

Q.

Pollen is produced inside ____________.

Q. find the area of an equilateral triangle with side 23cm

Q. A flower which contains both stamen and pistil is called as

1. Bisexual flower
2. Unisexual flower
3. Unique flower
4. None of the above

Q. The part of a flower that bears ovules:

1. Carpel
2. Stamen
3. Petal
4. Sepal

Q. Unisexual flowers with androecium cannot produce fruits on the same plant as it lacks the following part

1. Pollen
2. Pistil
3. Corolla
4. Calyx

Q. Do all flowers have the same parts and are they arranged in the same way? [2 marks]