Tag: digestive glands

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Multiple choice biology digestive system of human digestive glands liver pancreas

Assertion  :    In alcoholic drink, the alcohol is converted
                         into glucose in the liver.

Reason  :      Liver cells are able to produce glucose from
                       alcohol by back fermentation.


  1. If both the assertion and the reason are true and the reason

    is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is

    not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In liver, alcohol is oxidised into acetaldehyde which is further oxidised into acetate. The latter is converted to acetyl coenzyme A which is used in Krebs' cycle. Ethyl alcohol $\rightarrow $ Acetaldehyde $\rightarrow $  Acetate $\rightarrow $ Acetyl Co A $\rightarrow $ $CO _{2}+H _{2}O$




Multiple choice biology digestive system of human digestive glands liver pancreas

Human liver has.

  1. $1000$ lobules
  2. $10000$ lobules

  3. About one million lobules

  4. No lobules
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The human liver is composed of a vast number of functional units called hepatic lobules, estimated to be around one million in an adult liver.

Multiple choice biology digestive system of human digestive glands liver pancreas

Liver performs the function of

  1. Glycogenesis

  2. Glycogenolysis

  3. Deammination

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

The liver performs all these functions: glycogenesis (glucose to glycogen), glycogenolysis (glycogen to glucose), and deamination (removal of amino groups from amino acids).

Multiple choice biology digestive system of human digestive glands liver pancreas

The endocrine part of the pancreas is known as.

  1. Crypts of Lieberkuhn

  2. Islets of Langerhans

  3. Peyer's patches

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

The Islets of Langerhans are the clusters of endocrine cells scattered throughout the pancreas that secrete hormones like insulin and glucagon.

Multiple choice biology digestive system of human digestive glands liver pancreas

Match the columns and find the correct choice.

a Kupffer's cells p Islet of Langerhans
b $\beta$-cells q Liver sinusoids
c Brush border cells r Thyroid gland
d Paneth cells s Proximal convoluted tubule
t Small intestine

  1. a-s, b-t, c-p, d-q

  2. a-r, b-, c-s, d-q

  3. a-r, b-t, c-s, d-p

  4. a-q, b-p, c-s, d-t
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Kupffer cells are found in liver sinusoids (a-q). Beta-cells are in the Islets of Langerhans (b-p). Brush border cells are in the small intestine (c-t). Paneth cells are also in the small intestine (d-t). Note: The provided option D matches a-q and b-p, which are correct.

Multiple choice biology digestive system of human digestive glands liver pancreas

Which one is both exocrine ad endocrine?

  1. Liver

  2. Pineal

  3. Adrenal

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

The pancreas is a heterocrine gland, meaning it has both exocrine functions (secreting digestive enzymes) and endocrine functions (secreting hormones).

Multiple choice biology digestive system of human digestive glands liver pancreas

Which one of the following is not secreted by pancreas

  1. Insulin

  2. Glucagon

  3. Renin

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

Renin is an enzyme secreted by the juxtaglomerular cells of the kidney, not the pancreas. Insulin, glucagon, and somatostatin are all produced by the endocrine pancreas.