CBSE Class 7 Science Life Processes in Plants (Class 7 NCERT New) Quiz 5

1. What role does chlorophyll play in photosynthesis?

A It absorbs water B It captures sunlight C It releases oxygen D It produces glucose

2. Why is transpiration important for plants?

A It helps in the transport of minerals from the soil B It cools the plant down C It provides energy for photosynthesis D Both A and B

3. In the tropical rainforest it rains daily, so which of the following would be most likely.

A The guard cells would close the stomata to conserve water. B The guard cells would open the stomata so that transpiration could take place. C The turgor pressure would be low because of the lack of water.

4. During photosynthesis, plants absorb energy from sunlight, they take in water from the soil using their roots, and they take in carbon dioxide from the atmosphere. What is produced in the leaves of plants, in addition to oxygen?

A sugar B hydrogen C minerals D all of these

5. Photosynthesis typically occurs in plant cells. Cellular respiration occurs in

A the cell(s) of all organisms. B animal cells only. C the cells of multicellular organisms only. D plant cells only.

6. What is the main pigment in plants that captures sunlight for photosynthesis?

A Carotene B Chlorophyll C Melanin D Anthocyanin

7. What are the two raw materials (reactants) needed for photosynthesis?

A Oxygen and glucose B Carbon dioxide and water C Nitrogen and sunlight D Glucose and carbon dioxide

8. Which part of the plant is primarily responsible for carrying out photosynthesis?

A Root B Stem C Leaf D Flower

9. What are the two types of plant transport tissues?

A Epidermis and cortex B Xylem and phloem C Stomata and chloroplast D Cambium and pith

10. Which of the following is an example of vegetative (asexual) reproduction in plants?

A Pollination B Seed germination C Budding in a potato D Fertilization of an egg cell