Parts of a Flower

Q.

Differentiate between calyx and corolla.

Q.

A flower can have both male and female reproductive parts.

1. False

2. True

Q. Match the whorls of a flower with their respective units.
$\begin{array}{cc}\text{Whorls}& \text{Units}\\ i.\text{Corolla}& A.\text{Stamens}\\ ii.\text{Calyx}& B.\text{Carpels}\\ iii.\text{Androecium}& C.\text{Sepals}\\ iv.\text{Gynoecium}& D.\text{Petals}\end{array}$

1. i-B, ii-A, iii-C, iv-D
2. i-D, ii-B, iii-C, iv-B
3. i-D, ii-C, iii-A, iv-B
4. i-B, ii-C, iii-D, iv-A

Q.

The rose is called the queen of flowers. ( Change the voice).

Q.

.......... is not a part of gynoecium.

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

Q.

Why do we have to cut and spread the petals of bell-shaped flowers like Datura?

Q.

Sepals protect the esential parts of the flower during the fruit formation stage.

1. False

2. True

Q.

Name the following:

Two bisexual flowers.

Q. Match the column.

Column-I	Column-II
(a) Calyx	(i) Ovary
(b) Corolla	(ii) Sepal
(c) Stamen	(iii) Stigma
(d) Carpel	(iv) Petal
	(v) Anther
	(vi) Filament

1. (a) $\to$ ii; (b) $\to$ iv; (c) $\to$ v, vi; (d) $\to$ i, iii
2. (a) $\to$ ii; (b) $\to$ v; (c) $\to$ iv, vi; (d) $\to$ i, iii
3. (a) $\to$ iii; (b) $\to$ iv; (c) $\to$ v, vi; (d) $\to$ i, ii
4. (a) $\to$ ii; (b) $\to$ iv; (c) $\to$ v, i; (d) $\to$ vi, iii

Q.

Study the three flowers (a), (b) and (c) in the following figure. Then answer the questions.

Which flower makes pollen and eggs?

Q.

Study the three flowers (a), (b) and (c) in the following figure. Then answer the questions.

which flower makes pollen only?

Q.

Study the three flowers (a), (b) and (c) in the following figure. Then answer the questions.

which flower makes eggs only?

Q.

Match the following:

$\begin{array}{cccc}& \text{A}& & \text{B}\\ 1.& \text{Androecium}& \text{a}& \text{Whorl of sepals}\\ 2.& \text{Gynoecium}& \text{b}& \text{Whorl of petals}\\ 3.& \text{Corolla}& \text{c}& \text{Whorl of stamens}\\ 4.& \text{Calyx}& \text{d}& \text{Whorl of pistil/carpel}\end{array}$

1. 1-b, 2-d, 3-c, 4-b

2. 1-c, 2-d, 3-b, 4-a

3. 1-d, 2-c, 3-b, 4-a

4. 1-b, 2-c, 3-a, 4-b

Q.

what happens if a pollen of a plant reaches another flower not of the same kind