Biology GK Questions Quiz-52

1021.Insulin : (1) increases blood sugar (2) decreases blood sugar (3) constricts blood vessels (4) stimulates lactation Answer: 1021.(2) Insulin is central to regulating carbohydrate and fat metabolism in the body. It stops the use of fat as an energy source by inhibiting the release of glucagon. It removes excess glucose from the blood, which otherwise would be toxic. 1022.Plant genetic material in ‘GeneBank’ is preserved at – 196° C in liquid nitrogen as. (1) seedling and meristem (2) mature seed (dry) (3) pre-mature seed (high moisture) (4) ripe fruit Answer: 1022.(2) Plant genetic material in ‘GENE BANK’ is preserved at -196° Celsius in Liquid Nitrogen as mature seed (dry). In plants, it is possible to unfreeze the material and propagate it. 1023.Flowers emit fragrance to : (1) purify air (2) drive away flies (3) attract insects (4) perform all the above Answer: 1023.(3) Flowers emit fragrance to attract pollinators which are mainly insects. The fragrance plays a prominent role in the localization a…