biology
chemistry
physics
miscellaneous
biology mcqs
chemistry mcqs
physics mcqs

Start typing to see results.

Subjects

biology
chemistry
physics
miscellaneous
biology mcqs
chemistry mcqs
physics mcqs

miscellaneous

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

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 41 - 60 of 143

41. A normal human being requires how much calories per day : -

2500 k. cal
4000 k. cal
5000 k.cal
686 k cal

A normal human being requires approximately 2500 k. cal (kilocalories) per day . This is an average value and can vary based on individual factors such as age, sex, activity level, and metabolic rate.

42. Fully digested food reaches to liver by : -

Hepatic portal vein
Hepatic artery
Hepatic vein
All the above

Fully digested food (after absorption) reaches the liver by the hepatic portal vein . This unique vascular connection, called the hepatic portal system, transports blood rich in absorbed nutrients from the digestive tract directly to the liver for processing before it enters the general systemic circulation .

43. Dental formula of adolescent human being before seventeen year : -

2122/2122
2123/2123
2033/1023
3142/3142

The dental formula for an adolescent human being before seventeen years (lacking third molars/wisdom teeth) is 2122/2122 . The full adult dental formula is 2123/2123 .

44. In mammals milk is digested by action of : -

Rennin
Amylase
Intestinal bacteria
Invertase

In mammals, particularly infants, milk is digested by the action of Rennin . Rennin (chymosin) is an enzyme present in the gastric juice of infants that coagulates milk proteins.

45. Which food should be eaten in deficiency of Rhodopsin in eyes -

Carrot & ripe papaya
Guava, banana
Mango & Potato
None

Rhodopsin is a visual pigment, and its deficiency is linked to night blindness, which is caused by Vitamin A deficiency . Foods rich in Vitamin A, such as carrot & ripe papaya, should be consumed to address this deficiency . Golden rice is also mentioned as a food that can prevent blindness associated with vitamin A deficiency .

46. Which one correctly matched : -

Vit. E – Tocopherole
Vit. D – Riboflavin
Vit. B – Calciferole
Vit. A – Thiamine

The correctly matched pair is Vit. E – Tocopherole . Tocopherol is also known as the anti-sterility vitamin . Riboflavin is Vitamin B2, Calciferol is Vitamin D , and Thiamine is Vitamin B1 .

47. Most abundant organic compound on earth is –

Protein
Cellulose
Lipids
Steroids

The most abundant organic compound on Earth is cellulose . Cellulose is a complex carbohydrate that forms the primary structural component of plant cell walls.

48. Stool of a person contain whitish grey colour due to malfunction of which type of organ : -

Pancreas
Spleen
Kidney
Liver

A whitish grey color in stool can indicate a malfunction of the liver . The liver produces bile, which contains pigments like bilirubin and biliverdin that give stool its normal brown color. A lack of bile in the intestines due to liver issues can lead to pale stools.

49. Fluoride pollution mainly affects : -

Brain
Heart
Teeth
Kidney

Fluoride pollution mainly affects teeth . Excessive fluoride intake, particularly from drinking water, can cause dental fluorosis, leading to mottling of teeth .

50. Which one of the following pairs is not correctly matched : -

Vitamin C — Scurvy
Vitamin B5 — Pellagra
Vitamin B12 — Pernicious anaemia
Vitamin B6 — Beri–beri

The pair that is not correctly matched is Vitamin B6 — Beri–beri . Beri-beri is caused by a deficiency of Vitamin B1 (Thiamine) . The other pairs are correct: Vitamin C deficiency causes Scurvy , Pellagra is associated with Nicotinamide (Vitamin B3) deficiency , and Vitamin B12 deficiency causes Pernicious anaemia .

51. Which one of the following mineral elements plays an important role in biological nitrogen fixation : -

Copper
Manganese
Zinc
Molybdenum

Molybdenum plays an important role in biological nitrogen fixation . It is a vital component of the nitrogenase enzyme complex, which is essential for converting atmospheric nitrogen into a usable form by certain microorganisms.

52. Which hormones induce secretion of succus entericus : -

Insulin
Secretin and cholycystokinin
Glucagon
Secretin

Secretin is a hormone that induces the secretion of succus entericus (intestinal juice) . Succus entericus is secreted by the Crypts of Lieberkuhn and is also known as intestine juice . Secretin is secreted by the duodenum .

53. If the dental formula of Rabbit is . What does it show?

Total no. of teeth in Rabbit is 15
No. of total incisors in Rabbit is 3
Diastema is present between incisors & premolars
In the formula 2033 is for adult and 1023 is for young ones

If the dental formula for a rabbit (e.g., 2033/1023 ) is known, it shows that a diastema is present between incisors & premolars . This gap occurs because rabbits lack canine teeth , creating a space between their incisors and cheek teeth.

54. Which of the following is a disaccharide : -

Glucose
Fructose
Sucrose
Galactose

Sucrose is a disaccharide , meaning it is composed of two monosaccharide units. Glucose, fructose, and galactose are all monosaccharides .

55. Which is correct about the bile of rabbit : -

It is synthesised by gall bladder & also stored there
It is an enzyme which emulsify the fats
It contain bile salts & bile pigments
Bilirubin present in it decomposes fats

The correct statement about bile is that it contains bile salts & bile pigments . Bile is synthesized in the liver and stored in the gall bladder . Its primary function is to emulsify fats for digestion , but it is not an enzyme itself . Bile pigments are waste products, not fat decomposers .

56. If all the peptide bonds of protein are broken, then remaining part is : -

Amide
Oligosaccharide
Polypeptide
Amino acid

If all the peptide bonds of a protein are broken through hydrolysis, the remaining parts are its basic building blocks: amino acids . Proteins are polymers of amino acids linked by peptide bonds.

57. Hydrolysis of lipid yields : -

Fats
Fatty acids and glycerol
Mannose and glycerol
Maltose and fatty acid

Hydrolysis of lipid (triglycerides) yields fatty acids and glycerol . These are the constituent molecules of most dietary fats.

58. Which cells of mucous layer of stomach secrete pepsinogen

Chief cell
Goblet cell
Parietal cell
Oxyntic cell

The chief cells (also known as peptic cells) of the mucous layer of the stomach secrete pepsinogen . Parietal cells (or oxyntic cells) secrete HCl , and Goblet cells secrete mucus .

59. Glucose and galactose unite to form

Maltose
Sucrose
Isomaltose
Lactose

Glucose and galactose unite to form lactose . Lactose is a disaccharide commonly found in milk .

60. Dental formula in adult man is : -

2123/2123
2122/2122
2033/1023
3142/3142

The dental formula in an adult man (with wisdom teeth) is 2123/2123 . This formula represents the number of incisors, canines, premolars, and molars in one half of the upper jaw over one half of the lower jaw.

1 2 3 4 ... 8

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