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nutrition in plants

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as

a)

(a) heterotrophs

b)

(b) autotrophs

c)

(c) parasites

d)

(d) saprophytes

2.

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?

a)

(a) Stomata

b)

(b) Lamina

c)

(c) Midrib

d)

(d) Veins

3.

In the absence of which of the following will photosynthesis not occur in leaves?

a)

(a) Guard cells

b)

(b) Chlorophyll

c)

(c) Vacuole

d)

(d) Space between cells

4.

Two organisms are good friends and live together. One provides shelter, water, and nutrients while the other prepares and provides food. Such an association of organisms is termed as

a)

(a) saprophyte

b)

(b) parasite

c)

(c) autotroph

d)

(d) symbiosis

5.

Pitcher plant traps insects because it

a)

(a) is a heterotroph.

b)

(b) grows in soils which lack in nitrogen.

c)

(c) does not have chlorophyll.

d)

(d) has a digestive system like human beings.

6.

Cuscuta is an example of

a)

autotroph

b)

parasite

c)

saprotroph

d)

host

7.

Green plants are called (a)   , since they prepare their own food.

8.

Chlorophyll containing structures in a plant cell

a)

Stomata

b)

guard cells

c)

Chloroplast

d)

none of these

9.

During photosynthesis, the stomata help in the intake of

a)

Oxygen

b)

Carbon dioxide

c)

Water

d)

Nitrogen

10.

Chlorophyll helps the plants to

a)

Exchange gases

b)

Absorb water from the stem

c)

Transport food from the leaves to the other parts

d)

Absorb energy from the sunlight

11.

Green pigment present in the leaves is _____.

a)

Stomata

b)

Stem

c)

Chlorophyll

d)

Algae

12.

The process of Photosynthesis produces

a)

Carbon Dioxide

b)

Nitrogen

c)

Oxygen

d)

Hydrogen

13.

Organisms other than plants which contain Chlorophyll are

a)

Algae

b)

Protozoa

c)

Virus

d)

Fungi

14.

What protects Stomata and helps it in opening and closing?

a)

Guard Cells

b)

Leaf

c)

Stem

d)

Carbon Dioxide

15.

Solar energy is converted into chemical energy during photosynthesis.

a)

True

b)

False

16.

The products of photosynthesis are not a protein.

a)

True

b)

False

17.

Plants which synthesis their food themselves are called saprotrophs

a)

True

b)

False

18.

What do the patches of green layer floating on the surface of stagnant water bodies like ponds and lakes consist of ?

a)

Algae.

b)

Bacteria

c)

Virus

19.

Organisms that make their own food using abiotic factors (you may select more than one answer)

a)

autotrophs

b)

heterotrophs

c)

producers

d)

consumers

20.

The tiny spores of fungus plants are always present in _____

a)

air

b)

water

c)

light

d)

earth