The buds at the tip of the stem or its branches are called

1

(a)

axillary buds

(b)

nodal buds

(c)

apical buds

(d)

growing buds

The swollen part at the base of a flower from which the whorls of the flower radiate is called the

1

(a)

thalamus 

(b)

pedicel

(c)

pistil

(d)

carpel

The male parts of the flower are called

1

(a)

pistils

(b)

carpels

(c)

stamens

(d)

styles

Which part of the plant grows in the soil?

1

(a)

Stem

(b)

Leaf

(c)

Root

(d)

Seed

Which of the following is not a correct match?

1

(a)

Petiole: attaches leaf to stem

(b)

Lamina: green flat part of leaf

(c)

Margin: gives shape to the leaf

(d)

Veins: transpiration

The swollen basal part of the pistil is the __________ which bears the_______

1

(a)

ovary, ovules

Small fine particles present in the anther are called _________

1

(a)

pollen grains

Rose plant is a _________whereas tomato plant is a__________

1

(a)

shrub, herb

The young unopened flower is termed as____________

1

(a)

bud

Money plant with long and weak stem is called __________

1

(a)

climber

Transpiration occurs generally by the surface of leaves.

1

(a) False

(b) True

Ovary always produces seeds.

1

(a) False

(b) True

Onion plant has long thin leaves and adventitious roots.

1

(a) False

(b) True

Lateral roots are present in a tap root.

1

(a) False

(b) True

Leaves perform the function of transpiration only.

1

(a) True

(b) False

Roots are helpful in the conservation of soil. Explain.

2

(a)

Briefly describe weeds.

2

(a)

Leaves when treated with iodine gives blue-black colour. Give the reason.

2

(a)

Herb is different from a shrub. Explain.

2

(a)

Differentiate between sepals and petals.

2

(a)

Draw a labelled diagram of pistil.

3

(a)

Write down two examples of trees, shrubs, herbs and creepers growing near your area.

3

(a)

Can the stem of a plant be compared with a street with two ways traffic? Give reason.

3

(a)

The type of leaf venation and root in plants are related in an interesting way. Explain the statement.

3

(a)

Is it right to call the leaf as food factory of the plant? Justify your answer.

3

(a)

Observe the figure of an activity given as figure, carried out with leaves of plants and polythene bag. Now answer the following.

(a) Which process is demonstrated in the activity?
(b) When will this activity show better results on a bright sunny day or a cloudy day?
(c) What will you observe in the polythene bag after a few hours of setting up the activity?
(d) Mention anyone precaution you must take, while performing this activity.

5

(a)