A Typical Flower

Q.

All flowers contain male and female parts in them. State true or false.

1. True

2. False

Q. Identify the anthers in the given flower.

1. 
2. 
3. 

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 part

Q.

Regarding assertion and reason, select the right option.

Assertion (A): Androecium and gynoecium are termed essential whorls.
Reason (R): The two important units of sexual reproduction namely the male and female gametes are produced by the androecium and the gynoecium respectively.

1. Both A and R are correct and R explains A

2. Both A and R are correct and R does not explain A

3. Both A and R are incorrect

4. A is correct and R is incorrect

Q.

Flowers arise from a modified stem called the -

1. Receptacle

2. Corolla

3. Calyx

4. None of the above

Q. Which of the following flowers is unisexual?

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

Q.

The differentiation and development of floral primordium depends on -

1. Hormones

2. Environmental factors

3. Nutrients

4. Both A and B

Q.

Which of the following flowers is unisexual?

1. Pea

2. Cucumber

3. China rose

4. Onion

Q.

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

1. True

2. False

Q.

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

1. True

2. False

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