Tag: digestive system of human

Questions Related to digestive system of human

Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to

  1. Vitamin A toxicity

  2. Kidney stones

  3. Hypercholesterolemia

  4. Urine laden with ketone bodies


Correct Option: C
Explanation:

Continued consumption of fat rich diet causes hypercholesterolemia. Hypercholesterolemia is the presence of high levels of cholesterol in the blood. High cholesterol raises your risk for heart disease, heart attack and stroke. 

Kidney stones are solid mass made up of tiny crystals. There are different types of kidney stones. The exact cause depends on the type of stone like, calcium stones, uric acid stone etc. 
Vitamin A toxicity or hypervitaminosis A is having too much of vitamin A in the body. 
Ketonuria is condition in which ketone bodies are present in urine. Body produces excess ketone bodies as an alternate source of energy during starvation or diabetes mellitus (type 1).
Therefore, the correct answer is option C.

Salivary glands are____________

  1. Merocrine

  2. Apocrine

  3. Holocrine

  4. None of these


Correct Option: A
Explanation:
  • A cell is classified as merocrine if the secretions of that cell are excreted via exocytosis from secretory cells into an epithelial-walled duct or ducts and then onto a bodily surface or into the lumen.
  •  The salivary glands are an example of merocrine glands. 
  • Hence, Salivary glands are Merocrine.
  • So, the correct answer is 'Merocrine'.

Secretin stimulates production of?

  1. Saliva

  2. Gastric juice

  3. Bile

  4. Chylomicron


Correct Option: A

Saliva contains enzyme

  1. Enterokinase

  2. Ptyalin/amylase

  3. Chymotrypsin

  4. Lipase


Correct Option: B

Saliva produced per day is1.0 d

  1. $m^3$

  2. 1.5 d$m^3$

  3. 2.0 d$m^3$

  4. 2.5 d$m^3$


Correct Option: B

Which is not a parasite of the human intestine ?

  1. ringworm

  2. pinworm

  3. threadworm

  4. tapeworm


Correct Option: A
Explanation:
They have long round bodies and range in size. Roundworms can live in or on humans and can cause many problems. They are usually found in soil and stool and can enter the body through the mouth or direct contact with the skin. They can live in the human intestine for a very long time. They are called normal Flora.
So the correct option is 'Ringworm'.

If the chyme is pushed backwards in small quantity, then it reaches to

  1. Large intestine

  2. Duodenum

  3. Oesophagus

  4. Small intestine


Correct Option: A

The term "Faeces" used for the undigested substances present in ___

  1. $Caecum$

  2. $Colon$

  3. $Rectum$

  4. $Anus$


Correct Option: A

Escherichia coil lives in human and animal intestine. It is

  1. Gram-positive and rod-shaped

  2. Gram-positive and spiral-shaped

  3. Gram-negative and rod-shaped

  4. Gram-negative and spherical


Correct Option: A

Finger like projections present in large intestine are called _____

  1. Jejunum

  2. Colon

  3. Villi

  4. Rectum


Correct Option: C
Explanation:

Digestion ends in small intestine. Waste products are excreted from our body through large intestine. Excess water and salts are absorbed from intestine through muscular finger like projections called Villi.