Tag: digestive system of human

Questions Related to digestive system of human

Heparin is synthesised in

biology digestive system of human digestive glands liver pancreas

  1. Kidney

  2. Salivary glands

  3. Pancreas

  4. Liver

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Correct Option: D
Explanation:

Heparin is an anticoagulant formed in the liver and mast cells. It is found in blood and connective tissues. It belongs to a class of mucopolysaccharides and helps to prevent blood clots in arteries and veins. It is an anticoagulant that prevents the formation of blood clots. It is also used before surgery to reduce the risk of blood clots. It helps the blood to flow smoothly in the body by making a certain natural substance in the body work better. 

Thus, the correct answer is option D. 

In human beings, sphincter of oddi is situated in 

biology digestive system of human digestive glands liver pancreas

  1. Common bile duct

  2. Ampulla of vater

  3. Main pancreatic duct

  4. Common hepatic duct

Show answer
Correct Option: B
Explanation:

The sphincter of Oddi, abbreviated as SO, is a muscular valve that controls the flow of digestive juices through the ampulla of Vater into the second part of the duodenum. The sphincter of Oddi is relaxed by the hormone cholecystokinin via vasoactive intestinal peptide. 

So, the correct option is 'Ampulla of Vater'.

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

biology digestive system of human digestive glands liver pancreas

  1. Pancrease

  2. Spleen

  3. Kidney

  4. Liver

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Correct Option: D
Explanation:
Bilirubin is broken down to urobilinogen and stereobilinogen. The yellowish-brown colour of stool is due to the stereobilinogen. Due to the malfunctioning of the liver, insufficient production of stereobilinogen leads to white stool.

So, the correct answer is 'Liver'.

The pancreas produces?

biology digestive system of human digestive glands liver pancreas

  1. Three digestive enzymes and one hormone

  2. Three types of digestive enzymes and two hormones

  3. Two digestive enzymes and one hormone

  4. Only digestive enzyme and no hormone

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Correct Option: B
Explanation:
The pancreas produces majorly three types of digestive enzymes:
  • Proteases: to digest proteins.
  • Lipase: to break down fats.
  • Amylase: for the digestion of carbohydrates.

 The pancreas maintains the body’s blood glucose (sugar) balance. Primary hormones of the pancreas include insulin and glucagon, and both regulate blood glucose.
  • Insulin: This hormone regulates blood glucose by allowing many of your body’s cells to absorb and use glucose. In turn, this drops blood glucose levels.
  • Glucagon: Glucagon helps insulin maintain normal blood glucose by working in the opposite way of insulin. It stimulates your cells to release glucose, and this raises your blood glucose levels.

So, the correct answer is 'Three types of digestive enzymes and two hormones'.

Kupffer's cells of liver are an example of ________________.

biology digestive system of human digestive glands liver pancreas

  1. Anatomical barrier

  2. Inflammatory barrier

  3. Physiological barrier

  4. none of the above

Show answer
Correct Option: B
Explanation:

Kupffer cells are also known as stellate macrophages (star-shaped) located in the liver, lining the walls of the sinusoids. They form part of the mononuclear phagocyte system. This means that they are a part of the first line of defense (inflammatory barrier) of the body and are involved in engulfing any invading pathogen (virus, bacteria, etc.) and destroy them.

So, the correct answer is 'Inflammatory barrier'. 

Simple absorbable forms are produced by secretions of all except

biology digestive system of human digestive glands liver pancreas

  1. Hepatocytes

  2. Enterocytes

  3. Parietal cells

  4. Oxyntic cells

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Correct Option: A

Meat does not contain much glycogen because 

biology digestive system of human digestive glands liver pancreas

  1. It is stored only in liver

  2. Animals do not store much glycogen

  3. It is degraded by enzymes immediately after death

  4. Clinical death is not biological death

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Correct Option: A
Explanation:
Meat does not contains much of glycogen as all the excess glucose present in body is converted to glycogen and is stored in the liver.
Some of the glycogen is stored in muscle but is as less as $1-2\%$. Major portion, i.e., $100-120$gm of glycogen is stored in liver cells and are released and broken down when needed.

Bilirubin is the breakdown product of

biology digestive system of human digestive glands liver pancreas

  1. Haemoglobin

  2. RBC

  3. WBC

  4. Platelets

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Correct Option: A
Explanation:

The dead RBCs are metabolised in the spleen and liver and the heme is broken down into bilirubin which is a yellow coloured pigment.

So, the correct option is 'Haemoglobin'.

Removal of the pancreas impairs the breakdown of 

biology digestive system of human digestive glands liver pancreas

  1. lipids and carbohydrates only

  2. lipids and proteins only

  3. lipids, proteins and carbohydrates

  4. proteins and carbohydrates only

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Correct Option: C

The function of the liver is to

biology digestive system of human digestive glands liver pancreas

  1. Promote digestion of food

  2. Promote respiration

  3. Store glucose as glucogen

  4. None of these

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Correct Option: C