Test: Hormones Of Heart, Kidney, GI Tract


5 Questions MCQ Test Biology Class 11 | Test: Hormones Of Heart, Kidney, GI Tract


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QUESTION: 1

Choose the correct answer among the following options:

Solution:

Epinephrine (one of the catecholamines) increases the heart beat during any stress or emergency conditions.

Testosterone is responsible for muscle growth.

Glucagon helps in decreasing liver glycogen content.

Atrial Natriuretic Factor takes part in decreasing the Blood Pressure by RAAS.

QUESTION: 2

Erythropoietin is a

Solution:

Erythropoietin (EPO) is a peptide hormone that is produced naturally by the human body. EPO is released from the kidneys and acts on the bone marrow to stimulate red blood cell production.

QUESTION: 3

Which one of the following part is an endocrine gland?

Solution:

Brunner's gland are present in small intestine and secrete intestinal juice through ducts.
Crypts of Lieberkühn, also known as Paneth cells, are tubular glands present in small intestine and secrete intestinal juice.
Pars radiata (medullary rays) are the extensions of medulla into cortex of kidney.
Juxtaglomerulus is present in kidneys and consists of juxtaglomerular cells or JG cells that secrete enzyme renin and hormone erythropoietin. Hence, juxtaglomerulus is endocrine (ductless glands) as it secretes a hormone.
So, the correct answer is 'Juxtaglomerulus'.

QUESTION: 4

Which of the following hormones stimulates the secretion of pancreatic enzyme from the pancreas?

Solution:

Cholecystokinin, is secreted in large amounts by the stomach in response to gastric distention and irritation. In addition to stimulating acid secretion by the parietal cell, gastrin stimulates pancreatic acinar cells to secrete digestive enzymes.

QUESTION: 5

Enterogastrone is

Solution:

Enterogastrones are the hormones secreted by some specialised cells present in the walls of the duodenum. these hormones help in the digestion processes to be carried out smoothly. Secretin and cholecystokinin are enterogastrones.

a) Secretin: This enterogastrone is secreted by duodenal mucosa when the amount of HCl present in it is more. It stimulates the production of water, bicarbonates in the pancreatic juice. It also stimulates the production of bile from the gall bladder.

b) Cholecystokinin: This enterogastrone is releases when the food is present in the duodenum. It makes the contraction of gall bladder possible and release of bile into the duodenum.