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Biology Test-14

  • Remaining Timing :-

(1). Examination of blood of a person suspected of having anaemia shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following is likely to alleviate his symptoms ?

  • (a). Iron compounds
  • (b). Thiamine
  • (c). Folic acid and cobalamine
  • (d). Riboflavin
  • (e). None of these
Answer : Folic acid and cobalamine

Explanation:

(2). Which one of the following is a fat-soluble vitamin and its related deficiency disease ?

  • (a). Retinol – Xerophthalmia
  • (b). Cobalamine – Beri-beri
  • (c). Calciferol – Pellagra
  • (d). Ascorbic acid – Scurvy
  • (e). None of these
Answer : Retinol – Xerophthalmia

Explanation:

(3). Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product ?

  • (a). Small intestine : proteins-amino acids
  • (b). Stomach : fats –micelles
  • (c). Duodenum : triglycerides – monoglycerides
  • (d). Small intestine : starch – disaccharide (maltose)
  • (e). None of these
Answer : Small intestine : starch – disaccharide (maltose)

Explanation:

(4). What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor ?

  • (a). In the absence of HCI secretion, inactive pepsinogen is not converted into the active enzyme pepsin.
  • (b). Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin
  • (c). Gastric juice will be deficient in chymosin
  • (d). Gastric juice will be deficient in pepsinogen
  • (e). None of these
Answer : In the absence of HCI secretion, inactive pepsinogen is not converted into the active enzyme pepsin.

Explanation:

(5). When breast feeding is replaced by less nutritive food which is low in proteins and calories; the infants below the age of one year are likely to suffer from

  • (a). rickets
  • (b). kwashiorkor
  • (c). pellagra
  • (d). marasmus
  • (e). None of these
Answer : marasmus

Explanation:

(6). Which one of the following pairs of food components in humans reaches the stomach totally undigested ?

  • (a). Starch and fat
  • (b). Fat and cellulose
  • (c). Starch and cellulose
  • (d). Protein and starch
  • (e). None of these
Answer : Fat and cellulose

Explanation:

(7). If for some reason our goblet cells are non-functional, this wil adversely affect

  • (a). production of somatostatin
  • (b). secretion of sebum from the sebaceous glands
  • (c). maturation of sperms
  • (d). smooth movement of food down the intestine
  • (e). None of these
Answer : smooth movement of food down the intestine

Explanation:

(8). If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen ?

  • (a). The pancreatic enzymes and specially the trypsin and lipase will not work efficiently
  • (b). The pH of stomach will fall abruptly
  • (c). Steapsin will be more effective
  • (d). Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
  • (e). None of these
Answer : Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones

Explanation:

(9). Jaundice is a disorder of

  • (a). excretory system
  • (b). skin and eyes
  • (c). digestive system
  • (d). circulatory system
  • (e). None of these
Answer : skin and eyes

Explanation:

(10).
  • (a). amino acids and glucose
  • (b). glucose and fatty acids
  • (c). fatty acids and glycerol
  • (d). fructose and some amino acids
  • (e). None of these
Answer : amino acids and glucose

Explanation: