The reproductive part of a plant is the

1

(a)

leaf

(b)

stem

(c)

root

(d)

flower

Bryophyllum can reproduce by its

1

(a)

stem

(b)

leaves

(c)

roots

(d)

flower

The 'eye' of the potato plant is what?

1

(a)

The root is to any plant

(b)

The bud is to a flower

(c)

The bud is to Bryophyl/um leaf

(d)

The anther is to stamen

Lila observed that a pond with clear water was covered up with a green algae within a week.
By which method of reproduction did the algae spread so rapidly?

1

(a)

Budding

(b)

Sexual reproduction

(c)

Fragmentation

(d)

Pollination

The ovaries of different flowers may contain

1

(a)

only one ovule

(b)

many ovules

(c)

one to many ovules

(d)

only two ovules

Seed dispersal takes place by means of _________, __________ and __________.

1

(a)

wind, water, animals

Roots, stems and leaves are called ___________ of a plant.

1

(a)

vegetative part

The scars present on the potato tubers are called ___________.

1

(a)

eye

The _______ is the male reproductive part of flower while _________ is the female reproductive part of a flower.

1

(a)

stamen, pistil

The cells which result after __________ of the gametes is called __________.

1

(a)

fusion, zygote

Potato reproduces from seeds.

1

(a) True

(b) False

Jasmine is grown by grafting.

1

(a) True

(b) False

Maple seed is dispersed by explosion mechanism.

1

(a) True

(b) False

Two individuals are needed for the sexual reproduction.

1

(a) False

(b) True

Pistil is the male reproductive part of a flower.

1

(a) True

(b) False

Pick the odd one out from the following on the basis of mode of reproduction and give reason for it,
Sugarcane, Potato, Rice, Rose.

2

(a)

Boojho had the following parts of a rose plant-a leaf, roots, a branch, a flower, a bud and pollen grains. Which of them can be used to grow a new rose plant?

2

(a)

Name two plants where vegetative reproduction takes place by roots.

2

(a)

Bryophyllum leaves reproduce using which mode of reproduction?

2

(a)

Describe the different methods of asexual reproduction. Give examples.

3

(a)

Collect some flower of different plants like papaya, rose, mustard, lady's finger, Petunia, cucumber, corn, pea, etc. Group them under following heads.
(a) Which of these plants have unisexual flowers?
(b) Which of these plants have bisexual flower?
(c) What is the other name of unisexual and bisexual flower?

3

(a)

What is a bud? Which organism reproduces by budding? Given the diagrammatic representation of budding in a plant.

3

(a)

Group the seeds given in figure (i) to (iii) according to their means of dispersion.
(a) Seed dispersed by wind.
(b) Seed dispersed by water.
(c) Seed dispersed by animal.

3

(a)

Observe the following figure and answer the following questions.
(a) Which type of vegetative propagation has been shown in this figure?
(b) Name two plants where this method of vegetative reproduction takes place.
(c) Is this a sexual or asexual mode of reproduction?
(d) Label the part (A) and (B) in the given figure.

5

(a)

Name some fruit bearing plants. Now make a table and describe the method of seed dispersal in these fruits as well as the part which helps in the seed dispersal.

5

(a)