Biology · Science General

Human Digestive System

1,953 Questions

The human digestive system explores the breakdown of biomacromolecules, covering organs from the stomach to the small intestine. It involves physiological processes like chyme movement, pH levels, and nutrient absorption in the gut. These fundamental biology concepts are regularly featured in medical and general science competitive exams.

Small intestine functionsBiomacromolecule breakdownStomach and digestionIntestinal bacteria

Human Digestive System Questions

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

In acute constipation, the faces are retained within the rectum as bowel movements occur irregularly, purgatives containing (A)  are generally used as they B  fluidity and volume of intestinal contents by drawing water from the blood into intestinal lumen by C.

  1. A - Magnesium; B - increase; C - endosmosis

  2. A- Sodium salt; B - decrease; C- exosmosis

  3. A - Magnesium; B - increase; C - exosmosis

  4. A - Potassium salt; B - decrease; C- endosmosis

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Constipation is a condition in which feces are retained within rectum as bowel movements occur irregularly. It is caused mainly due o poor diet and dehydration. Purgatives containing magnesium can be used to treat constipation. It is an osmotic laxative that increases the fluidity and volume of intestinal contents by drawing water from blood into intestinal lumen by endosmosis.
So the correct option is 'A- Magnesium; B - saltincrease; C- endosmosis'.
Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Ability of digesting milk decreases with age due to the lack of 

  1. lactase

  2. pepsin

  3. rennin

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lactase is the enzyme required to break down lactose, the sugar found in milk. Its production often decreases with age, leading to lactose intolerance.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

If your diet does not contain enough roughage, then you are likely to suffer from 

  1. Indigestion.

  2. Constipation.

  3. Diarrhea.

  4. Typhoid.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Roughage or dietary fiber as it is known is the indigestible portion of the carbohydrate in the food derived from plants. These are of two types - the soluble fiber and and the insoluble one. The insoluble fiber is metabolically inert and being prebiotic and ferment in the large intestine. These bulking fibers tends to absorb water as they move through the digestive system which helps in easy defecation. Hence, consuming a diet without roughage will lead to constipation.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Infrequent bowel movement is

  1. Constipation

  2. Vomitting

  3. Loose mothion

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Infrequent bowel movement or tough bowel movements causes constipation. In this condition the feces is hardened. The main reasons of constipation are irritable bowel syndrome, uptake of antacid medicines, colon cancer, pregnancy, stress, unusual life style etc. So, the correct option is A.
Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Which of the following causes indigestion?

  1. Ulcer

  2. Thyroidism

  3. Pancreatitis

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Difficulty in digestion is called indigestion. It occurs as a symptom of diseases like gastroesophageal reflux disease, ulcers, thyroidism, pancratitis and gall bladder diseases. It can cause abdominal pain, burning stomach, nausea, belching and vomiting.

So, the answer is 'All of the above'.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Incomplete bowel evacuation is 

  1. Indigestion

  2. Vomiting

  3. Dysentery

  4. Constipation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Constipation is a condition of digestive system of in which an individual has hard feces that are difficult to expel. It include incomplete and infrequent bowel movement.
So the correct answer is 'Constipation'.
Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Difficulty in digestion of food is called as

  1. Constipation

  2. Malfunction

  3. Indigestion

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Difficulty in digestion of food is called indigestion. It occurs as a symptom of gastroesophageal reflux disease, ulcers or gall bladder disease. It cause abdominal pain, belching gas, nausea and vomiting.
So, the correct answer is 'Indigestion'.
Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Identify the symptoms of indigestion.

  1. Fever

  2. Bloating

  3. Growling stomach

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Digestion is the process in which the food gets digested and broken down into smaller components which are absorbed by the cells of the body. If the process if digestion is not carried out properly might lead to bowel problems like constipation. There is production of acid and gas in the stomach, which results in problems like bloating. There is movement of the gas in the stomach which is described as growling stomach. This may also be associated with pain in the stomach.

Thus, the correct answer is option D. 

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

When the peristaltic movements of the stomach and oesophagus reverse their normal direction, it causes

  1. Constipation

  2. Indigestion

  3. Vomiting

  4. Acidity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Peristalsis pushes food through the lower oesophagus into the stomach. When the peristaltic movements of the stomach and oesophagus reverse their normal direction, it is called reverse peristalsis. In this situation, the contraction of abdominal muscles and diaphragm pushes food back through the oesophagus and out through mouth which results to vomiting. So, the correct option is C.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Jaundice is a disease of

  1. Kidney

  2. Liver/Digestive system

  3. Pancreas

  4. Duodenum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Jaundice is a condition characterized by the yellowing of the skin and eyes, which occurs due to the buildup of bilirubin in the blood. This is primarily caused by dysfunction or disease of the liver, which is responsible for processing bilirubin.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Anxiety and eating spicy food together by an otherwise normal human, may lead to

  1. Indigestion

  2. Jaundice

  3. Diarrhoea

  4. Vomiting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anxiety and spicy food can both irritate the gastric lining or disrupt normal digestive motility. This combination commonly leads to indigestion, which involves discomfort, bloating, or pain in the upper abdomen.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Which is not a disorder of digestive system

  1. Emphysema

  2. Jaundice

  3. Constipation

  4. Vomiting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Emphysema is a chronic respiratory condition characterized by damage to the air sacs (alveoli) in the lungs. It is a disorder of the respiratory system, not the digestive system.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Increased liquidity of faecal discharge associated with reduced absorption of food is

  1. Vomiting

  2. Indigestion

  3. Constipation

  4. Diarrhoea
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Diarrhoea is defined by the frequent passage of loose or liquid stools. This condition is often caused by reduced absorption of water and nutrients in the intestines.

Multiple choice evs science of kitchen balanced diet and malnutrition assimilation of food components and importance of food skeletal system and muscles assimilation of food and egestion busy at work - our internal organs

Stool of a person is whitish grey coloured due to malfunction of which of the following organs?

  1. Pancreas

  2. Spleen

  3. Kidney

  4. Liver
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The stool of a person is whitish grey colored due to malfunction of 'liver'.

So the correct option is D.