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Digestive System & Nutrition MCQs

Multiple-choice questions on the human digestive system and nutrition, covering various biological concepts and physiological processes.

Test Your Knowledge

Showing questions 101 - 120 of 143

101. Where the lysozymes are found

In saliva and tears both
In tears
In saliva
In mitochondria

Lysozymes are found in saliva and tears both . They are enzymes with antibacterial properties, forming a part of the body's innate immune defense.

102. The hormone which lowers the secretion of hydro chloric acid and gastric juice is

Secretin
Enterogastrone
Enterokinin
Gastrin

The hormone that lowers the secretion of hydrochloric acid and gastric juice is Enterogastrone . It is also known as Gastric Inhibitory Peptide (GIP) .

103. Which of the following is different from other :

Gastrin
Ptyalin
Glucagon
Secretin

Among the given options, Ptyalin is different because it is an enzyme . Gastrin , Glucagon , and Secretin are all hormones.

104. Trypsin differs from pepsin because it digests :

Carbohydrate in alkaline medium in stomach
Protein, in alkaline medium in stomach
Protein, in acidic medium of stomach
Protin, in alkaline medium in duodenum

Trypsin differs from pepsin because it digests protein, in an alkaline medium in the duodenum . In contrast, pepsin digests proteins in the acidic medium of the stomach . Pancreatic juice, which contains trypsin, is alkaline .

105. Pancreatic juice is :

Alkaline in nature
Acidic in nature
Enzymatic in nature
Both acidic and alkaline in nature

Pancreatic juice is alkaline in nature . This alkalinity, due to bicarbonate ions (stimulated by secretin ), helps neutralize the acidic chyme entering the duodenum from the stomach.

106. Scurvy disease is due to the

Presnce of h-factor in blood
Deficiency of vitamin E
Virus
Deficiency of vitamin C

Scurvy disease is due to the deficiency of vitamin C . Vitamin C is also known as Ascorbic acid .

107. The chemical name of vitamin D is

Riboflavin
Ascorbic acid
Niacin
Calciferol

The chemical name of vitamin D is Calciferol . Its deficiency causes Rickets in children and Osteomalacia in adults .

108. From which of the following pepsin is secreted

Lungs
Stomach
Salivary gland
Sebaceous gland

Pepsin is secreted from the stomach . It is secreted as inactive pepsinogen by chief cells and activated by HCl to begin protein digestion.

109. Crypts of Lieberkuhn involved in :

Secretin of succus entericus
Secretin of rennin
Secretin of ptyalin
digestion of food

Crypts of Lieberkuhn are involved in the secretion of succus entericus . Succus entericus is also known as intestinal juice .

110. Which of the following vitamin synthesized in animal body by bacteria

According to the provided answer key, Vitamin B12 is synthesized in the animal body by bacteria . Certain symbiotic microorganisms, particularly in the gut, are known to synthesize vitamins like B12 .

111. Vitamin-C is mainly helpful in :

Growth of bones
Formation of connective tissue
Treatment of anaemia
Formation of visual pigment

Vitamin C is mainly helpful in the formation of connective tissue . It is crucial for the synthesis of collagen, a key protein in connective tissues.

112. A person addict for alcohol gets his liver destroyed because :

Liver stores excess of protein
Liver stores excess of fat
Liver stores excess of starch
Liver stores excess of glycogen

A person addicted to alcohol gets their liver destroyed because the liver stores excess of fat . This leads to conditions like fatty liver syndrome and can progress to more severe liver damage such as cirrhosis .

113. Bilirubin and Biliverdin are present in :

Pancreatic Juice
Saliva
Bile juice
Intestinal juice

Bilirubin and Biliverdin are present in Bile juice . These are bile pigments, which are waste products derived from the breakdown of heme in the liver.

114. Marasmus disease is caused due to

Protein deficiency
Obesity
Dwarfism
Deficiency of vitamins

Marasmus disease is caused due to protein deficiency , specifically a severe deficiency of overall calories and protein. Kwashiorkor is another disease also caused by protein deficiency .

115. Brunner's gland are found in :

Submucosa of stomach
Submucosa of duodenum
Mucosa of oesophagus
Mucosa of ileum

Brunner's glands are found in the submucosa of the duodenum .

116. Specific cells found in liver are :

hepatic cells
beta cells
Kupffer's cells
Islets of Langerhans

Among the choices, Kupffer's cells are specific cells found in the liver . They are phagocytic cells that function as part of the liver's immune defense. Hepatic cells are the main liver cells, but Kupffer's cells are a distinct type of immune cell within the liver. Beta cells and Islets of Langerhans are found in the pancreas .

117. Which of the following does not belong to vitamin B group :

Riboflavin
Nicotin
Cyanocobalamine
Tocopherol

Tocopherol does not belong to the vitamin B group . Tocopherol is Vitamin E , known as the anti-sterility vitamin . Riboflavin (B2), Nicotin (referring to Niacin, B3), and Cyanocobalamine (B12) are all B vitamins .

118. Deficiency of which vitamin causes night blindness :

Vitamin C
Vitamin B
Vitamin A
Vitamin D

Deficiency of Vitamin A causes night blindness . Vitamin A (Retinol) is essential for the formation of visual pigments like rhodopsin .

119. Certain B vitamins are :

Enzymes
Co-enzymes
Hormone
Digestive substance

Certain B vitamins function as co-enzymes . They act as cofactors, assisting various enzymes in metabolic reactions throughout the body.

120. Deficiency of thiamine causes :

Beri-beri
Rickets
Caries
Pellagera

Deficiency of thiamine (Vitamin B1) causes Beri-beri . Rickets is caused by Vitamin D deficiency and Pellagra by Nicotinamide (Vitamin B3) deficiency .

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Human Phsyiology: MCQ Test

Excretory Products & Their Elimination: MCQs

biology

class 11
class 12

chemistry

class 12

physics

miscellaneous

coding
- Mastering Clean Code: Essential Tips for Every Developer
reactjs notes series

biology mcqs

class 11
class 12