MCQ Practice – Class 6 to 10

Q1. Human lungs contain millions of?

A. Alveoli B. Cilia C. Nephrons D. Villi

Q2. Which factor is NOT required for photosynthesis?

A. Carbon dioxide B. Sunlight C. Chlorophyll D. Oxygen

Q3. The process of removal of undigested food is called?

A. Egestion B. Absorption C. Excretion D. Assimilation

Q4. Which process removes metabolic wastes?

A. Reproduction B. Respiration C. Excretion D. Nutrition

Q5. Bile helps in digestion of?

A. Vitamins B. Fats C. Carbohydrates D. Proteins

Q6. Which structure prevents backflow of blood in veins?

A. Villi B. Valves C. Alveoli D. Lenticels

Q7. The exchange of gases in humans occurs in?

A. Alveoli B. Bronchi C. Pharynx D. Nostrils

Q8. In Amoeba, food is digested in?

A. Pseudopodia B. Food vacuole C. Cytoplasm D. Nucleus

Q9. Which component helps in blood clotting?

A. Plasma B. WBC C. Platelets D. RBC

Q10. The process of breakdown of glucose without oxygen is?

A. Aerobic respiration B. Transpiration C. Glycolysis D. Anaerobic respiration

Quiz – Life Processes