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Endocrine Glands - The Producers Of Chemical Messengers

Question

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Give reasons for the following:

People living in hilly regions usually suffer from simple goitre.

Solution

In hilly regions, the soil is deficient in iodine, thus, the food grown in such soil is iodine deficient. Iodine is necessary for the synthesis of thyroid hormone and simple
goitre is caused by hyposecretion of thyroxine. The deficiency of iodine leads to less production of thyroxine and therefore, people living in hilly regions usually suffer from simple goitre.

Some More Questions From Endocrine Glands - The Producers of Chemical Messengers Chapter

Give the biological/technical terms for the following:

v. The hormone increasing reabsorption of water by kidney tubules.

Differentiate between the following pairs on the basis of what is mentioned
within brackets:

iv. Vasopressin and Insulin (Deficiency disorder)

Give the exact location of the following:

Pituitary gland

Give reasons for the following:

People living in hilly regions usually suffer from simple goitre.

Study the diagram given below and answer the following questions:

(i) Name the pancreatic cells which produce (1) glucagon and (2) insulin.
(ii) State the main function of (1) glucagon and (2) insulin.
(iii) Why is the pancreas referred to as an exo-endocrine gland?
(iv) Why is insulin not given orally but is injected into the body
(v) What is the technical term for the cells of the pancreas which produce endocrine hormones?
(vi) Where in the body is the pancreas located?

S.no Category Odd One
0
Organelles of Plant cell
Centrosomes

Given below is an example of a certain structure and its special functional activity:

Example:
(0) Ribosomes and protein synthesis.
On a similar pattern, complete the following:

(i) Hypothalamus and __ .

Explain the following terms:

(iii) Hormones

Given below is an outline of the human body showing the important glands.

(i) Name the glands marked 1 to 5.

(ii) Name the hormone secreted by 2. Give one important function of this hormone.

(iii) Name the endocrine cells present in part 3.

(iv) Name the hormone secreted by part 4. Give one important function of this hormone.

State whether the following statements are true or false. If false, write the correct
form of the statement by changing the first or last word only.

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