Structure of a Flower

Q.

What are some features of anemophilous flowers?

Q.

How does the bee know which flower has nectar?

Q.

Both chasmogamous and cleistogamous flowers are present in

1. Rosa

2. Gossypium

3. Commelina

4. Helianthus

Q.

Banyan tree is a dicotyledonous ___ seeded flowering plant.

Q. The petals of a flower are collectively known as the:

1. calyx
2. androecium
3. corolla
4. gynoecium

Q. Egg cell is present in which part of the flower?

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

Q. Reproductive whorls of the flower are _______ .

1. androecium and gynoecium
2. androecium and calyx
3. androecium and corolla
4. calyx and gynoecium

Q.

Flowers that do not have a stalk are called ___.

Q. Reproductive part in an angiosperm is the

1. fruit
2. flower
3. leaf
4. seed

Q. The flower is attached to the stem through the stalk known as the ______.

1. pedicel
2. style
3. petiole
4. receptacle

Q.

The second whorl of a flower is called _______.

1. Petals

2. Sepals

3. Carpels

4. Stamens

Q. Androecium is the female reproductive part of a flower.

1. True
2. False

Q. Which part of the flower produces male gamete?

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

Q. Which part of the flower contains its female gamete?

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

Q. Choose the correct sequence of the whorls of the flower from outside to inside.

1. Calyx$\to$ Corolla $\to$Androecium $\to$ Gynoecium
2. Gynoecium $\to$Androecium $\to$Calyx $\to$Corolla
3. Corolla $\to$Calyx $\to$Androecium $\to$ Gynoecium
4. Calyx $\to$ Androecium $\to$Corolla $\to$ Gynoecium

Q.

A typical flower has four main Whorls, namely, calyx, ___________, stamens, __________.

Q. Stamens represent the

1. female reproductive part
2. egg producing part ___.
3. male reproductive part
4. site of fertilisation

Q. What is the difference between monocot and dicot plant?

Q.

Butterflies and bees collect __________ of the flower.

Q.

Is coconut a non-flowering plant?

Q. Match the following.

$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \left(a\right)\text{Calyx}& \left(i\right)\text{Petals}\\ \left(b\right)\text{Corolla}& \left(ii\right)\text{Stamens}\\ \left(c\right)\text{Androecium}& \left(iii\right)\text{Carpel}\\ \left(d\right)\text{Gynoecium}& \left(iv\right)\text{Sepals}\end{array}$

1. a - ii, b - iii, c - iv, d- i
2. a - ii, b - iii, c - i, d- iv
3. a - iv, b - i, c - ii, d- iii
4. a - i, b - iv, c - ii, d- iii

Q.

The ovaries contain ___.

Q. Which among the following is the whorl of coloured petals that attracts the pollinators?

1. Corolla
2. Calyx
3. Gynoecium
4. Androecium

Q. Whorl of coloured petals to attract the pollinator is calyx.

1. True
2. False

Q.

Why do some plants bear long anthers ?

Q.

Name the following:
The innermost whorl in a bisexual flower: ______________.

Q.

The female part of a plant is called __________.

Q. Carpel consists of

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

Q.

Corolla is composed of:

1. Sepals.

2. Petals

3. Stamens

4. None of these.

Q.

The receptive part of a carpel is the stigma.

1. True
2. False