Q1. In calves that consume large quantities of milk, the curdling of milk takes place due to ________
The action of rennin
Q2. Which is most important for the growth of children up to the age of 14?
Q3. Roughage, a necessary constituent of diet, consists largely of indigestible ________
Carbohydrates such as cellulose and lignin
Q4. What should be given to an athlete for instant energy?
Q5. People who live at high altitudes have rosy cheeks because ________
Red cell concentration becomes considerably above the average in response to lowered oxygen pressure
Q6. The route of circulation in the human heart is ________
Right auricle-right ventricle-pulmonary artery-lungs-pulmonary veins-left auricle-left ventricles-aorta
Q7. One of the organs that excrete water, fat and various catabolic wastes is the ________
Q8. The numerous minute pores in the epidermis of a leaf are called ________
Q9. In some plants, water oozes through certain pores that remain permanently open. This phenomenon is called ________
Q10. From which part of the plant is turmeric, a commonly used colourant and antiseptic, obtained?
Q11. A person will have brown eyes, blue eyes or black eyes depending upon the particular pigments present in the ________
Q12. It is not advisable to sleep under a tree at night because of the ________
Release of carbon dioxide
Q13. In case of cardiac arrest, what should be the most primary step?
Q14. The volume of urine produced in an adult human every 24 hours is ________
Q15. The rate at which the heart beats per minute in an adult average ________
Q16. Once blood clots at a wound, harmful bacteria are prevented from entering by ________
Q17. Venous blood is carried to the lungs for oxygenation by the ________
Q18. The fundamental role of root hairs in plant is ________
To absorb water and mineral salts from the soil
Q19. Water and minerals salts are translocated in plants in the ________
Q20. Taxonomy is a science dealing with the ________
Identification, nomenclature and classification of all living organisms.
Q21. The widely used antibiotic, penicillin, is produced by _
Q22. Lichen is considered to be a symbolic association of two living organisms. Which organisms are involved in it? ________
Algae and fungi
Q23. Why does a piece of bread when chewed taste sweet?
Saliva’s action converts starch into maltose
Q24. Plants absorb nitrates from soil and convert them into _______
Q25. Plants have ________ while animals lack it.
Q26. Animal cells have.....while plant cells lack it
Q27. Xerophytes are the plants which grow ________
In soils with scant water (deserts)
Q28. ________ is sanguivorous (Blood sucking).
Q29. The growth of plants is measured by ________
Q30. The blood-pressure in normal human being is ________
Q31. ‘Dead hearts’ are produced in ________
Q32. Ontogeny recapitulates phylogeny is the theory of ___
Q33. Winter dormancy is ________
Q34. Bronchitis is a disease of ________
Q35. What is meant by ‘Organ Culture’?
Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid
Q36. BCG is used to prevent ________
Q37. The molecules responsible for storing the genetic code are ________
Q38. Test-tube baby means ________
Ovum fertilized in test tubes and developed in the uterus
Q39. What is the basic characteristic of antigens?
They are capable of stimulating the formation of antibodies.
Q40. When White-flowered F1 plants were crossed to pure red-flowered plants, the progeny had all ________
Red flowered plant
Q41. In an adult human being, the number of vertebrae is ____
Q42. Alimentary canal is usually longer in ________
Q43. Seed dormancy is due to ________
Q44. A bat is ________
Q45. Human blood has the highest percentage of ________
Q46. Most abundant tissues of our body are ________
Q47. Normal adult human male has ________
14 gm of haemoglobin per 100 gm of blood
Q48. The outer layer of the skin is called ________
Q49. Blood does not clot in the absence of Vitamin K because it is ________
An essential for the synthesis of prothrombin
Q50. Sleeping on left side is useful because ________
It gives maximum relaxation to the muscles of the right side and keeps the liver warm, relaxed and improves bile secretion.