Question 1. In calves that consume large quantities of milk, the curdling of milk takes place due to ________
Answer: The action of rennin
Question 2. Which is most important for the growth of children up to the age of 14?
Question 3. Roughage, a necessary constituent of diet, consists largely of indigestible ________
Answer: Carbohydrates such as cellulose and lignin
Question 4. What should be given to an athlete for instant energy?
Question 5. People who live at high altitudes have rosy cheeks because ________
Answer: Red cell concentration becomes considerably above the average in response to lowered oxygen pressure
Question 6. The route of circulation in the human heart is ________
Answer: Right auricle-right ventricle-pulmonary artery-lungs-pulmonary veins-left auricle-left ventricles-aorta
Question 7. One of the organs that excretes water, fat and various catabolic wastes is the ________
Question 8. The numerous minute pores in the epidermis of a leaf are called ________
Question 9. In some plants, water oozes through certain pores that remain permanently open. This phenomenon is called ________
Question 10. From which part of the plant is turmeric, a commonly used colorant and antiseptic, obtained?
Question 11. A person will have brown eyes, blue eyes or black eyes depending upon the particular pigments present in the ________
Question 12. It is not advisable to sleep under a tree at night because of the ________
Answer: Release of carbon dioxide
Question 13. In case of cardiac arrest, what should be the most primary step?
Answer: Cardiac massage
Question 14. The volume of urine produced in an adult human every 24 hours is ________
Answer: 1.5 liter
Question 15. The rate at which the heart beats per minute in an adult average ________
Question 16. Once blood clots at a wound, harmful bacteria are prevented from entering by ________
Answer: Scab formation
Question 17. Venous blood is carried to the lungs for oxygenation by the ________
Answer: Pulmonary arteries
Question 18. The fundamental role of root hairs in plant is ________
Answer: To absorb water and mineral salts from the soil
Question 19. Water and minerals salts are translocated in plants in the ________
Question 20. Taxonomy is a science dealing with the ________
Answer: Identification, nomenclature and classification of all living organisms.
Question 21. The widely used antibiotic, penicillin, is produced by _
Answer: A fungus
Question 22. Lichen is considered to be a symbolic association of two living organisms. Which organism are involved in it? ________
Answer: Algae and fungi
Question 23. Why does a piece of bread when chewed taste sweet?
Answer: Saliva’s actioncon -verts starch into maltose
Question 24. Plants absorb nitrates from soil and convert them into _______
Answer: Free nitrogen
Question 25. Plants have ________ while animals lack it.
Question 26. Animal cells have.....while plant cells lack it
Question 27. Xerophytes are the plants which grow ________
Answer: In soils with scant water (deserts)
Question 28. ________ is sanguivorous (Blood sucking).
Question 29. The growth of plants is measured by ________
Question 30. The blood-pressure in normal human being is ________
Question 31. ‘Dead hearts’ are produced in ________
Question 32. Ontogeny recapitulates phylogeny is the theory of ___
Question 33. Winter dormancy is ________
Question 34. Bronchitis is a disease of ________
Answer: Respiratory tract
Question 35. What is meant by ‘Organ Culture’?
Answer: Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid
Question 36. BCG is used to prevent ________
Question 37. The molecules responsible for storing the genetic code are ________
Question 38. Test-tube baby means ________
Answer: Ovum fertilized in test tubes and developed in uterus
Question 39. What is the basic characteristic of antigens?
Answer: They are capable of stimulating the formation of anti-bodies.
Question 40. When White-flowered F1 plants were crossed to pure red-flowered plants, the progeny had all ________
Answer: Red flowered plant
Question 41. In an adult human being, the number of vertebrae is _
Question 42. Alimentary canal is usually longer in ________
Question 43. Seed dormancy is due to ________
Answer: Abscisic acid
Question 44. A bat is ________
Answer: A mammal
Question 45. Human blood has the highest percentage of ________
Question 46. Most abundant tissues of our body are ________
Question 47. Normal adult human male has ________
Answer: 14 gm of hemoglobin per 100 gm of blood
Question 48. The outer layer of the skin is called ________
Question 49. Blood does not clot in the absence of Vitamin K because it is ________
Answer: An essential for synthesis of prothrombin
Question 50. Sleeping on left side is useful because ________
Answer: It gives maximum relaxation to the muscles of the right side and keeps the liver warm, relaxed and improves bile secretion