221. One of the factors required for the maturation of erythrocytes is

A Vitamin $$A$$
B Vitamin $${B_{12}}$$
C Vitamin $$C$$
D Vitamin $$D$$
Answer :   Vitamin $${B_{12}}$$
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222. Which of the following pair is characterised by swollen lips, thick pigmented skin of hands and legs and irritability?

A Thiamine - Beri-Beri
B Protein - Kwashiorkor
C Nicotinamide - Pellagra
D Iodine - Goitre
Answer :   Nicotinamide - Pellagra
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223. 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
Answer :   Fat and cellulose
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224. The hepatic portal vein drains blood to liver from :

A Stomach
B Kidneys
C Intestine
D Heart
Answer :   Intestine
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225. Which one of the following is a matching pair of a substrate and its particular digestive enzyme?

A Starch - maltase
B Lactose - rennin
C Maltose - steapsin
D Casein - chymotrypsin
Answer :   Starch - maltase
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226. Hydrochloric acid is secreted by the

A Paneth cells
B Goblet cells
C Chief cells
D Parietal cells
Answer :   Parietal cells
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227. A patient suffering from cholera is given saline drip because

A $$C{l^ - }$$ ions are important component of blood plasma
B $$N{a^ + }$$ ions help to retain water in the body
C $$N{a^ + }$$ ions are important in transport of substances across membrane
D $$C{l^ - }$$ ions help in the formation of $$HCl$$  in stomach for digestion
Answer :   $$N{a^ + }$$ ions help to retain water in the body
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228. Continuous bleeding from an injured part of body it due to deficiency of

A Vitamin - A
B Vitamin - B
C Vitamin - K
D Vitamin - E
Answer :   Vitamin - K
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229. Total number of teeth in rabbit is

A 43
B 24
C 28
D 32
Answer :   28
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230. Glucose is transported to cell by

A Na+ Symport
B K+Symport
C Na+ Antiport
D K+ Antiport
Answer :   Na+ Symport
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