Functions of the Flower

Q.

What is the location and function of the thalamus in a flower?

Q. Which of the following are the characteristics of cross pollinating plants?

1. Flowers have less number of pollen grains.
2. Flowers have good smell.
3. Flowers have bright colours.
4. Flowers have dull colours.

Q.

Is coconut a dioecious plant?

Q.

Flowers are colourful, beautiful and attractive so that

1. Human beings can use them for decoration.

2. Plants look beautiful.

3. Insects get attracted towards them.

4. None of the above.

Q. Why are flowers important to plants?

Q.

Question 9

Match the part of plant given in Column I with their function in Column II.

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{(a)}& \text{Flower}& \text{(i)}& \text{Excretion}\\ \text{(b)}& \text{Leaf}& \text{(ii)}& \text{Photosynthesis}\\ \text{(c)}& \text{Stem}& \text{(iii)}& \text{Reproduction}\\ \text{(d)}& \text{Root}& \text{(iv)}& \text{Bears branches}\\ & & \left(v\right)& \text{Anchorage}\end{array}$

Q. What are pollinators? Explain.

Q. An indoor plant produced brightly coloured flowers. But none of the flowers produced seeds. It was found out that the seeds were not being produced due to the lack of natural pollinators. So, it was decided to put the plant outdoors to attract pollinators. Among rain, wind, moth and honeybee, which do you think would be the most probable pollinator for the plant?

Q.

Flowers are attractive to enable pollination.

1. True

2. False

Q. Match the following:

1	Androecium	a	Whorl of sepals
2	Gynoecium	b	Whorl of petals
3	Corolla	c	Whorl of stamens
4	Calyx	d	Whorl of pistils

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