Biology MCQs for MDCAT/ MCAT and Test Preparation

221. The disease of, osteoporosis is due to the, deficiency of?

(a) Vitamin-A

(b) vitamin-D

(c) Calcium

(d) Both B and C

222. Which of the following conditions is brought on by an iodine deficiency?

(a) Goiter

(b) Beriberi

(c) Anemia

(d) Marasmus

223. Which macronutrient deficiencies in plants lead to chlorosis?

(a) Carbon

(b) Nitrogen

(c) Calcium

(d) Oxygen

224. Except for one, all of the following are micronutrients that plants require in extremely minute amounts.

(a) Hydrogen

(b) Iron

(d) Copper

(c) Chlorine

225. Which substance is used by plants to make proteins?

(a) Carbon dioxide

(b) Nitrates

(c) Oxygen

(d) Vitamins

226. What happened when food reaches the stomach?

(a) No digestion occur in the stomach

(b) The food moves quickly into the small intestine

(c) Juices mix with the food and stomach muscles squeeze it

(d) The food is very completely digests and is absorbed into the the circulatory system

227. Which of the following does not manufacture digestive juices?

(a) Osophagus

(c) Pancreas

(d) Intestine

(b) Stomach

228. What is observed from the material when it is in the large intestine?

(a) Salts

(b) Water

(c) Vitamins

(d) all of these

229. Which of the following is NOT a function of salivary glands?

(a) Start digestion of proteins

(b) Secrete salvia

(c) Helps in the lubrication

(d) Makes taste possible

230. The cardiac sphincter serves as a value between?

(a) Stomach and duodenum

(b) Duodenum and ileum

(c) Esophagus and stomach

(d) Jejunum and caecum