Time Left:
600
sec
1. Which by-product causes tooth decay when bacteria act on sugars?
A. Water
B. Acids
C. Alkali
D. Salts
2. Which organ secretes pancreatic juice?
A. Pancreas
B. Liver
C. Gall bladder
D. Stomach
3. Which part regulates exit of food from stomach?
A. Anal sphincter
B. Cardiac sphincter
C. Pyloric sphincter
D. Diaphragm
4. Which chamber of the heart pumps oxygenated blood to the body?
A. Right atrium
B. Left ventricle
C. Right ventricle
D. Left atrium
5. Which chamber receives oxygenated blood from lungs?
A. Left atrium
B. Right atrium
C. Right ventricle
D. Left ventricle
6. Which type of blood pressure is measured during ventricular contraction?
A. Diastolic
B. Systolic
C. Venous
D. Capillary
7. Which blood vessel contains valves to prevent backflow?
A. Artery
B. Vein
C. Capillary
D. Aorta
8. Which type of organisms remove wastes by diffusion?
A. Unicellular
B. Multicellular
C. Vertebrates
D. Plants only
9. Which organ produces urea in the body?
A. Kidneys
B. Liver
C. Pancreas
D. Stomach
10. Which organ regulates body temperature in humans with energy supply?
A. Heart
B. Kidney
C. Lungs
D. Skin
11. Which chamber of the heart pumps deoxygenated blood to lungs?
A. Left ventricle
B. Right ventricle
C. Right atrium
D. Left atrium
12. Which structure filters inhaled air in humans?
A. Alveoli
B. Bronchi
C. Nostrils
D. Diaphragm
13. Which structure prevents air passage from collapsing?
A. Villi
B. Cartilage rings
C. Ribs
D. Cilia
14. Which type of respiration yields more energy?
A. Aerobic
B. Anaerobic
C. Fermentation
D. Diffusion
15. Which part of nephron is responsible for reabsorption of water and salts?
A. Bowman’s capsule
B. Tubule
C. Glomerulus
D. Collecting duct
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