MCQ Choice of Question and Answers in Biology Part 10

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97. Factor that increases the gastric emptying is

(a) Gastrin

(b) Secretin

(c) CCK

(d) Products of digestion

Answer: a

98. Mass peristalsis usually occurs in

(a) Esophagus

(b) Stomach

(c) Small intestine

(d) Large intestine

Answer: d

99. Secretin is produced from

(a) Stomach

(b) Small intestine

(c) Liver

(d) Pancreas

Answer: b

100. Vomiting centre is present in

(a) Cerebrum

(b) Mid brain

(c) Pons

(d) Medulla

Answer: d

101. In infants defecation often follows a meal. Most likely cause will be

(a) The gastro-ileal reflex

(b) The gastro-colic reflex

(c) The gastro-Oesophageal reflex

(d) The entero-gastric reflex

Answer: b

102. The usual cause of Hirschsprung՚s disease is

(a) Infection in colon

(b) Absence of enteric plexus

(c) Excessive stimulation of sympathetic system

(d) Excessive stimulation of parasympathetic system

Answer: b

103. Smell in flatus is due to

(a) Hydrogen sulphide

(b) Carbon dioxide

(c) Methane

(d) Nitrogen

Answer: a

104. The feeling of satiety results in response to following except

(a) Distension of stomach

(b) Rise in blood glucose level

(c) Stimulation of ventromedial hypothalamus

(d) Stimulation of lateral nucleus of hypothalamus

Answer: d

105. Malabsorption of lactose results in

(a) Milk intolerance

(b) Intolerance to sugar

(c) Steatorrhea

(d) Dysentery

Answer: a

106. Secretin is released from duodenal mucosa and it

(a) Increases mucous secretion from Brunner՚s gland

(b) Reduces gastric and duodenal motility

(c) Increases bicarbonate of pancreatic juice

(d) All of the above

Answer: d