A Typical Flower

Q.

Define a unisexual flower.

Q.

The differentiation and development of floral primordium depends on -

1. Hormones

2. Environment

3. Nutrients

4. Both A and B

Q.

A flower may have either male or female reproductive parts. Such a flower is called ________.

Q.

Select the mismatch from the following options.

1. Perianth - Essential whorl

2. Androecium - Male reproductive part

3. Gynoecium - Female reproductive part

4. Sepals and petals - Non-essential parts

Q.

Match the following.
$\begin{array}{cc}Column-I& Column-II\\ \left(i\right).Calyx& 1.Whorlofcarpels\\ \left(ii\right).Corolla& 2.Whorlofstamens\\ \left(iii\right).Androecium& 3.Whorlofsepals\\ \left(iv\right).Gynoecium& 4.Whorlofpetals\end{array}$

1. (i) - 3, (ii) - 4, (iii) - 1, (iv) - 2

2. (i) - 3, (ii) - 4, (iii) - 2, (iv) - 1

3. (i) - 4, (ii) - 3, (iii) - 2, (iv) - 1

4. (i) - 1, (ii) - 2, (iii) - 3, (iv) - 4

Q. what is the difference between calyx and bract ?

Q. A student collected 15 stamens from various flowers of different plant species. She arranged them on a slide to observe them. Select the most probable observations.
i) All flowers had stamens of the same length.
ii) Different flowers had stamens of different shapes and lengths.
iii) All flowers had stamens attached to them in a similar fashion.

1. Only i is incorrect
2. Only ii is correct
3. All but iii are correct
4. Both ii and iii are incorrect

Q.

In flowering plants, gene expression for cell differentiation is independent of environmental regulation.

1. True

2. False

Q. Select the correct option.
i) A typical flower only consists of fertile parts.
ii) Differentiation and further development of the floral primordium happens before several hormonal and structural changes are initiated.
iii) Floral buds are borne on the inflorescence axis.
iv) The distal end of the filament in a stamen is attached to the thalamus or petal.

1. All are incorrect
2. i, ii and iii are correct
3. All are correct
4. i, ii and iv are incorrect

Q.

Essential organs in a typical flower are always protected by non-reproductive parts.

1. True

2. False

Q. Which of the following flowers is unisexual?

1. China rose
2. Onion
3. Pea
4. Cucumber

Q.

What is a flower? Describe the parts of a typical angiosperm flower?

Q. An epigynous flower is characterized by

1. Inferior ovary
2. Superior ovary
3. Oblique ovary
4. Half superior and half inferior ovary