CBSE Class 7 Science Life Processes in Plants (Class 7 NCERT New) Quiz 9

1. What is the liquid part of blood called?

A Serum B Plasma C Lymph D Hemoglobin

2. Which blood vessels carry blood away from the heart?

A Veins B Capillaries C Arteries D Lymph vessels

3. Which blood vessels carry blood back to the heart?

A Arteries B Capillaries C Veins D Aorta

4. What is the process by which plants lose water through tiny pores in their leaves called?

A Respiration B Transpiration C Excretion D Absorption

5. What are the tiny pores on the surface of leaves through which transpiration occurs?

A Lenticels B Stomata C Villi D Nephrons

6. Which organ in the human body is the main organ of excretion?

A Liver B Lungs C Kidney D Skin

7. What is the functional unit of the kidney called?

A Neuron B Nephron C Alveolus D Villus

8. Which side of the human heart pumps blood to the lungs?

A Left side B Right side C Both sides equally D The top chambers only

9. What is the red pigment in red blood cells that carries oxygen?

A Chlorophyll B Melanin C Hemoglobin D Keratin

10. How do plants excrete excess water?

A Through roots B Through transpiration via stomata C Through the stem D Through flowers