
The sun provides energy for all living things. Gurmeet wrote two statements to explain the above fact.
Statement 1: All autotrophs prepare their own food in the presence of sunlight.
Which of the following should be Statement 2?


Important Questions on Nutrition in Plants
Two leaves, M and N, were used in an experiment to demonstrate the conditions needed for photosynthesis to take place. Both leaves are taken from different species of plants. They are subjected to the same conditions.
After one hour under the Sun, both leaves are tested with iodine solution. The results are shown in the table.
Leaf M | Test with iodine-the leaf turns blue-black |
Leaf N | Test with iodine-the leaf turns brown |
Which of the following statements best explains the results of the experiment?

Unscramble the options and choose the correct option for the statement given below.
“The part of plant that absorbs light for photosynthesis.’’

Which of the following statements is/are correct?
(i) All green plants can prepare their own food.
(ii) Most animals are autotrophs.
(iii) Carbon dioxide is not required for photosynthesis.
(iv) Oxygen is liberated during photosynthesis.
Choose the correct answer from the options below:

Advika took two healthy green plants of equal size, put them in two boxes, P and Q, made of different materials and placed them under the Sun, as shown in the figure. She watered the plants daily, but the plant in set-up P died, while the plant in set-up Q grew well. Which of the following best describes this?

Identify the right word in the T.S of leaf for the label 'A'.

Refer to the given figure. It illustrates

Match the statement 'A' with the term 'B'.
Statement 'A' | Term 'B' |
(a) Pore on a leaf through which carbon dioxide diffuses from air into the leaf | (i)Saprophytes |
(b) A substance that traps solar energy in green plants | (ii) Photosynthesis |
(c) Process of synthesizing food in green plants | (iii) Saprotroph |
(d) The first food product of photosynthesis | (iv) Stomata |
(e) The first visible stored food in a green leaf | (v) Nutrient |
(f) Example of a partial parasite | (vi) Starch |
(g) Plant organisms feeding on dead organic matter | (vii) Chlorophyll |
(h) An organism which feeds on dead organic matter | (viii) Mistletoe |
(i) A substance which is a part of the food to help nutrition | (ix) Sugar |

