Amarbel is an example of

1

(a)

autotroph

(b)

parasite

(c)

saprotroph

(d)

host

The raw material used by plants during photosynthesis

1

(a)

N₂ and O₂

(b)

O₂, H₂, CO₂

(c)

CO₂ and water

(d)

water and minerals

Pitcher plant traps insects because it

1

(a)

is a heterotroph

(b)

grows in soils which lack in nitrogen

(c)

does not have chlorophyll

(d)

has a digestive system like human beings

When we observe the lower surface of a leaf through a magnifying lens, we see numerous small openings. Which of the following is the term given to such openings?

1

(a)

Stomata

(b)

Lamina

(c)

Midrib

(d)

Veins

__________________ plants derive their nutrient from dead and decaying animals or plants.

1

(a)

Saprophytic

The openings present on the surface of leaves are protected by cells called _____________

1

(a)

guard cells

Leaves are called the _____________ of plants.

1

(a)

food factory

All green plants possess ______________ in their leaves.

1

(a)

chlorophyll

Plants which synthesise their food themselves are called saprotrophs.

1

(a) True

(b) False

Food is necessary for plants only.

1

(a) True

(b) False

Fungi are green plants that can synthesise their own food.

1

(a) True

(b) False

Pitcher plant eats insects.

1

(a) False

(b) True

Name the following a parasitic plant with yellow, slender and tubular stem.

1

(a)

Cuscuta (amarbel)

Name the following a plant that has both autotrophic and heterotrophic mode of nutrition.

1

(a)

Pitcher plant (insectivorous plant)

Name the following the pores through which leaves exchange gases.

1

(a)

Stomata

Define parasites.

2

(a)

Fungus can be harmful and useful. Give an example showing both of these traits of fungus.

2

(a)

In a plant, photosynthesis occurs in a part other than leaf. Name that plant and the part where photosynthesis occurs.

2

(a)

Distinguish between a parasite and a saprotroph.

3

(a)

How would you test the presence of starch in leaves?

3

(a)

Give a brief description of the process of synthesis of food in green plants.

3

(a)

Wild animals like tiger, wolf, lion and leopard do not eat plants. Does this mean that they can survive without plants? Can you provide a suitable explanation?

5

(a)