Thyroid Gland

Q.

Which hormone regulates carbohydrate, protein, and fat metabolism in the body?

Q.

Question 2
Why is the use of iodised salt advisable?

Q.

Name the hormone secreted by the thyroid gland.

Q.

Name the disease caused by the deficiency of thyroxine hormone in the body.

Q. Which one of the following disorders does not occur due to deficiency or excess of thyroxine?

1. Cretinism
2. Simple goitre
3. Exophthalmic goitre
4. Acromegaly

Q.

What is myxoedema?

Q. <!--br {mso-data-placement:same-cell;}--> What are the properties of hormones?

Q.

What is metabolism??

Q.

Question 48
Mention one function for each of these hormones.

(a) Thyroxin
(b) Insulin
(c) Adrenaline
(d) Growth hormone
(e) Testosterone

Q.

People living in the low Himalayan hilly regions often suffer from goitre. What could be the possible reason for it ?

Q. The amino acid with which iodine attaches to form thyroxine hormone is

1. Tyrosine
2. Threonine
3. Tryptophan
4. Cysteine

Q. Why pancreas are called compound gland and what are compound glands?

Q.

Given alongside is an outline diagram of human body showing position of certain organs.

(a) Name the parts numbered 1 to 4.

(b) What is common to all these parts in regard to the nature of their functions ?

(c) Name the nutrient element which is essential for the normal working of part 2.

Q.

The use of iodised salt is recommended to prevent :

(a) diabetes

(b) gonorrhoea

(c) dysentery

(d) goitre

Q.

Why is iodine as a nutrient, important to our body ?

Q.

Which halogen element is necessary for the making of thyroxine hormone by the thyroid gland ?

Q.

What would a child suffer from, if there was hyposecretion from his thyroid ?

Q.

While dwars and cretinism suffering child are somewhat of the same height, the main difference is that

1. Dwarf have normal intelligence while cretins do not

2. Cretins are mentally retarded

3. The head of cretin is especially large

4. The dwarf have elongated chin

Q.

Match the conditions in column A with the cause in column B

A (Condition) B (Cause)

(a) Dwarfism and mental retardation (i) Excess of glucose in blood.

(b) Diabetes mellitus (ii) Over secretion of growth hormone.

(c) Shortage of glucose in blood (iii) Insulin shock.

(d) Gigantism (iv) Over secretion of thyroxine.

(e) Enlargement of breasts in adult males (v) Hypothyroidism in a child.

(f) Exophthalmic goiter (vi) Over secretion of cortical hormones.

Q.

Match the items of column I with those of column II.

Column I Column II

1. 'β' (beta) cells of islets of Langerhans (a) Condition due to undersecretion of thyroxine in adults.

2. Thyroid (b) Undersecretion of glucocorticoids

3. Cretinism (c) Exophthalmic goitre

4. Addison's disease (d) Increases heart beat

5. Hyperthyroidism (e) Thyroxine

6. Myxoedema (f) Adrenal cortex

7. Adrenaline (g) Insulin

8. Cortisone (h) Undersecretion of thyroxine in a child.

Q.

Given alongside is a portion from the human body showing some important structure in ventral (front) view.

(a) Where is this portion located in the body ?

(b) Name the structures numbered 1-3.

(c) State one main function of each of the structures named above.

(d) Is there any duct to carry the secretions from the structure numbered 2? If so, give its name.

Q.

Question 43
Answer the following :

(a) Which hormone is responsible for the changes noticed in females at puberty?
(b) Dwarfism results due to deficiency of which hormone?
(c) Blood sugar level rises due to deficiency of which hormone?
(d) Iodine is necessary for the synthesis of which hormone?

Q.

Which hormone regulates the function of thyroid gland?

Q. Given alongside is a portion of the human body showing some important structure in ventral (front) view. [4 MARKS]
(a) Where is this portion located in the body?
(b) Name the structures numbered 1-3.
(c) State one main function of each of the structures named above.
(d) Is there any duct to carry the secretions of the structure numbered 2? If so, give its name.

Q. Deficiency of thyroxine in children causes which leads to mental retardation.

1. cretinism
2. goitre
3. myxoedema

Q.

State the functions of the following hormones:

(a) Thyroxine

(b) Adrenaline

(c) Growth hormone

Q.

Deficiency of which of the following hormones causes goitre?

1. Insulin

2. Adrenaline

3. Progesterone

4. Thyroxine

Q.

Which of the following hormone increases the rate of cell metabolism and regulates growth?​

1. Thyroxine

2. Adrenaline

3. Testosterone

4. Insulin

Q.

One of the following statements is not true about thyroxine. This is :

(a) Thyroid gland requires iron to synthesise thyroxine

(b) It regulates carbohydrate, protein and fat metabolism

(c) Iodine is essential for the synthesis of thyroxine

(d) Thyroid gland can enlarge due to lack of thyroxine

Q. Blood calcium level is a resultant of how much dietary calcium is absorbed, how much calcium is lost in the urine, how much calcium from blood enters tissues, etc. A number of factors play an important role in these processes. Mark the one which has no role.

1. Thyrocalcitonin
2. Thymosin
3. Vitamin D
4. Parathyroid hormone