The Pituitary Gland

Q.

What is the function of FSH in male?

Q. Describe the roles of pituitary and ovarian hormones during the menstrual cycle in a human female. [5]

Q.

Name the only hormone secreted by pars intermedia of the pituitary gland.

Q.

Prepare a table having two columns depicting the names of endocrine glands and hormones secreted by them.

Q.

Question 23.2

State whether true or false

Pars distalis produces six trophic hormones.

Q.

Which of the following statement is incorrect?
(a) ADH prevents conversion of angiotensinogen in blood to angiotensin
(b) Aldosterone facilitates water reabsorption
(c) ANF enhances sodium reabsorption
(d) Renin causes vasodilation

Q. MSH is secreted by

1. the anterior lobe of the pituitary
2. the posterior lobe of the pituitary
3. the middle lobe of the pituitary
4. the pineal gland

Q.

Prepare a table depicting the names of endocrine glands and hormones secreted by them. State their function.

Q.

What is the role - played by luteinising hormones in males and females respectively?

Q. On feeling the tremor of an earthquake, there was a sudden panic. The heartbeat of a man who was trying to escape from the building suddenly increased. Which hormone is responsible for this sudden increase in heart rate during emergency situtation?

1. Adrenaline
2. Parathyroid hormone
3. Thyroxine
4. None of the above

Q. A plant hormone used for inducing morphogenesis in plant tissue culture is:

1. Ethylene
2. Gibberellin
3. Cytokinin
4. Abscisic acid

Q. Which of the following is/are function/s of the intermediate lobe of the Pituitary gland?

1. Controls the circadian rhythm
2. Colour of skin and iris of eyes
3. Uterine contraction during child birth
4. Darkening of skin in pregnant women

Q. Why is pituitary glands called the master glands?

Q. The pituitary is the master gland that controls the activity of other endocrine glands by secreting tropic hormones. Choose the endocrine gland which functions independent of the pituitary.

1. Thyroid
2. Gonads
   
3. Adrenals
   
4. Parathyroid

Q. Which of the following glands is large sized at birth but reduces in size with ageing?

1. Pituitary
2. Thyroid
3. Thymus
4. Pineal

Q. Who coined the term 'Kinetin'?

1. Skoog and Miller
2. Darwin
3. Went
4. Kurosawa

Q. Which of the following gland is found in a male cockroach?

1. Conglobate gland
2. Colleterial gland
3. Prostate gland
4. Cowper's gland

Q.

What hormone controls the water level in the body?

Q. Match the column-A (Scientists) with column-B (Discovery):

	Column-A		Column-B
I.	C. Darwin and F. Darwin	A.	Cytokinin
II.	Miller and Skoog	B.	ABA
III.	H.H. Cousins	C.	$C_2{H}_4$
IV.	Kurosawa	D.	Auxin
		E.	GA

1. I-D, II-A, III-C, IV-E
2. I-D, II-A, III-E, IV-B
3. I-C, II-A, III-B, IV-D
4. I-E, II-D, III-A, IV-C

Q.

Identify the following labeled parts of pituitary gland.

1. I.Anterior lobe II.Middle lobe

2. I.Posterior lobe II.Middle lobe

3. I.Anterior lobe II.Posterior lobe

4. I. Posterior lobe II.Anterior lobe

Q.

The pineal gland of the human brain secretes melatonin concerned with

1. Anger

2. Parturition

3. Colouration of skin

4. Lactation

Q. Tropic hormones from the anteror pituitary directly affect the release of which of the following?

1. Parathyroid hormone
2. Calcitonin
3. Thyroxine
4. Epinephrine

Q. Which of the following is not a function of luteinising homone?

1. Maintenance of corpus luteum
2. Ovulation of mature follicle
3. Secretion of androgens from testis
4. Production of sperm cells

Q. Which statement is incorrect for the hormones of anterior pituitary?

1. Prolactin regulates the growth of the mammary glands and formation of milk
2. ACTH stimulates the synthesis and secretion of glucocorticoids
3. LH and FSH are called gonadotrophins
4. LH is a male gonad hormone while FSH is a female gonad hormone

Q. Male cockroach can be identified from the female by the presence of

1. long antennae
2. wingless body
3. anal styles
4. elongated abdomen

Q. Match the following parts of pituitary gland with the hormones they release:

1. FSH & LH
2. MSH
3. Oxytocin & ADH

Q.
Pituitary gland is called as master gland because....

Q. ________ regulates the pigmentation of the skin.

1. ACTH
2. Calcitonin
3. MSH
4. TSH

Q.

When do women face a greater risk of abnormal TSH levels?

Q. Which hormone stimulates the synthesis and secretion of glucocorticoids?

1. ACTH
2. MSH
3. Triiodothyronine
4. TSH