Reproduction in plants Worksheet-8

Reproduction in plants Worksheet-8

Multiple-Choice Questions:

16. What are the four main parts of a flower?

(a) stamen, pistil, sepal and roots

(b) sepal, leaves, petals, and thorns

(c) sepal, pistil, stamen and petals

(d) roots, pistil, stamen and petals

17. A peanut in a shell and peas in a pod are examples of:

(a) Fruit               (b) a pistil            (c) a stamen        (d) an embryo

18. The spotted touch-me-not, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. Such an adaptation is favourable because it:

(a) Attracts insects that aid in pollination.

(b) Can cause genetic changes to occur.

(c) Aids in the dispersal of the species.

(d) Prevents germination within the seed pod.

19. Some seeds have radiating threads or wings that form a parachute so that they can be carried long distances.

This is a picture of a plant which depicts that the pollination in this plant takes place by:

(a) Animal           (b) Water             (c) Wind              (d) Insects

20. Water-pollinated flowers release their pollen grains into the water, and are slowly carried to other flowers by water currents.

Identify this water pollinated flower.

(a) Sea grass        (b) Vallisneria      (c) Hydrilla          (d) Zostera

Fill in the Blanks:

1. The formation of new individuals from the cells of a single parent is known as ________ reproduction.
2. A form of asexual reproduction where new cells develop into an outgrowth on the parent plant is called _________.
3. The end part of the ovary which receives pollen is termed as __________.
4. The male reproductive organ of a flower that carries the anther at its tip is termed as _________.

True/False:

1. A bisexual flower has both the male and the female reproductive parts.
2. Pollination takes place in plants with the help of wind, water and insects.
3. The male gametes are found inside the ovule and female gametes are found in the pollen grains.
4. Fertilized egg is called an embryo and an embryo develops into zygote.
5. A flower may be unisexual with either the male or the female reproductive parts.

Answer key:

Multiple-Choice Questions:

16. (C)
17. (A)
18. (C)
19. (C)
20. (B)

Fill in the blanks:

1. Asexual
2. Budding
3. Stigma
4. Stamen

True/False:

1. T
2. T
3. F
4. F
5. T