Tag: biology

Questions Related to biology

Cholesterol is synthesized in

biology digestion and absorption liver functions of the liver secretory organs

  1. Pancreas

  2. Brunner's gland

  3. Spleen

  4. Liver

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Correct Option: D
Explanation:

The liver performs several roles in lipid metabolism. Cholesterol, triglycerides (fats) and lipoproteins are synthesized in the liver.

Deamination occur in

biology digestion and absorption liver functions of the liver secretory organs

  1. Kidney

  2. Liver

  3. Nephron

  4. Both 1 and 2

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Correct Option: D
Explanation:

Deamination is the process of removal of amino acids like serine and threonine from molecules and the enzyme that catalyses the reaction is deaminases. In the human body, it takes place primarily in the liver however glutamate is also deaminated in the kidneys.

So, the correct answer is 'both 1 and 2'.

Peyer's patches are found in 

biology digestion and absorption liver functions of the liver secretory organs

  1. Liver

  2. small intestine

  3. Large intestine

  4. Spleen

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Correct Option: A

What is function of Kupffer's cell

biology digestion and absorption liver functions of the liver secretory organs

  1. Bile secretion

  2. Digestion of lipid

  3. Phagocytic

  4. Digestion of protiein

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Correct Option: C

Where are hormones destroyed in the human body?

biology digestion and absorption liver functions of the liver secretory organs

  1. Liver

  2. Kidney

  3. Stomach

  4. Small intestine

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Correct Option: A
Explanation:
  • Hormones are secreted by the endocrine glands which are specific in nature.
  • Each hormone causes a response in a target organ or tissues.
  • Once the function of the hormones is completed on their target organs or tissues they are destroyed. 
  • They are destroyed by the liver or the tissues of the target organs. 
  • The destroyed hormone is removed by the kidney. 
  • So, the correct answer is 'Liver'.

If $A=$ hepatic duct, $B=$common bile duct, $C=$hepato-pancreatic duct and $D=$cystic duct, then which of the following will not be having concentrated bile juice?

biology digestion and absorption liver functions of the liver secretory organs

  1. A

  2. B

  3. C

  4. D

Show answer
Correct Option: C
Explanation:

Bile is produced in the liver and then it's concentrated in the gallbladder. From gallbladder, it goes through the cystic duct. Cystic duct joins the pancreatic duct to form the hepato-pancreatic duct. Pancreatic juice and bile juice together is secreted through a common hepatic duct into the duodenum. During secretion from the hepato-pancreatic duct, pancreatic juice is present too making bile juice diluted. 

So, the correct option is 'C'.

Twenty-four hours after removing the liver of a mammal the concentrations of urea & amino acids in the blood would be changed in which of the following ways?

biology digestion and absorption liver functions of the liver secretory organs

  1. Both urea & amino acid levels would have risen

  2. There would be no change in the level of either

  3. The amino acid level would have risen while the urea level would be fallen

  4. The urea level would have risen while the amino acid

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Correct Option: A

Which of the following blood proteins (clotting factors) are produced by liver?

biology digestion and absorption liver functions of the liver secretory organs

  1. Thrombin and prothrombin

  2. Anti hemophilic and fibrinogen

  3. Prothrombin and Fibrinogen

  4. Thromboplastin and thrombin

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Correct Option: A

Liver excretes?

biology digestion and absorption liver functions of the liver secretory organs

  1. Urea

  2. Uric acid

  3. Bile pigments

  4. Albumin

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Correct Option: A

How many statement are false with respect liver :-

biology digestion and absorption liver functions of the liver secretory organs

  1. Stores vitamin $B _{12}$

  2. Change $\beta$-carotene into vitamine A

  3. Haemopoitic organ in adult

  4. Deamination of amino acid is not mainly done by liver

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Correct Option: A