Explore topic-wise InterviewSolutions in .

1. A – Hypothalamus 

2. B – Thymus

3. C – Thyroid gland 

4. D – Thymus 

5. E – Pancreas 

6. F – Adrenal gland 

7. G – Ovary 

8. H – Testis

Estrogen, Progesterone, Prolactin and Oxytocin

Oxytocin facilitates childbirth by stimulating the contraction of smooth muscles in the uterine wall. It also facilitates lactation.

Most important stage is childhood. 

1. Oxytocin 

2. Oxytocin is secreted from pituitary. 

3. Oxytocin helps the contraction of uterine wall and thereby helps in parturition

Hypothalamus, pituitary, Pineal

1 – (b) – (S) 

2 – (d) – (P) 

3 – (a) – (Q)

a) Somatotropin decreases during growth phase – dwarfism

Thymus is active only during infancy.

Artificial pheromones are used for pest control in agricultural field.

a) Gibberellin 

b) Ethylene 

c) Abscisic acid/ ethylene in excess amount. 

d) Auxin

Hormones reach every cell in the body as they are transported by blood. But each hormone acts only upon those cells which have specific receptors. The cells which are acted upon by hormones are their target cells

Abscisic acid is a plant hormone, used for harvesting fruits in a field at the same time.

a. Ovary 

b. Oestrogen 

c. Testis 

d. Sperm production, controls secondary sexual characters in males such as change in voice, growth of hair, etc.

e. Pituitary gland 

f. Production of milk 

g. Oxytocin 

h. Hypothalamus

a) B – Rainy season or winter season, C – Summer season

b) In rainy season production of vasopressin is less it decreases the reabsorption of water in the kidneys. So raises the quantity of urine. In summer season production of vasopressin increases. It increases the reabsorption of water in kidneys and lowers the quantity of urine.

c) ADH or vasopressin

a) Increase of parathormone: – Bones fragile stones in urinary tract, high blood calcium Decrease of parathormone – Blood calcium level decrease and it leads to tetany

b) Vasopressin:  Production of vasopressin increases It accelerate the rate of reabsorption of water from kidney. So the loss of water through urine is reduced. Production of vasopressin decreased The rate of reabsorption is reduced and more water discharged out through urine.

a) Season 3 

b) ADH/Vasopressin 

c) This hormone promotes reabsorption of water from renal tubules when normal level of water in blood decreases.

The rate of reabsorption of water in the kidney is decreased when there is no sufficient amount of vasopressin.

a) (i) X-dwarfism 1) become dwarfs due to stunted growth of bones

ii) Y – gigantism 2) Growing tall with a heavy body

iii) Z-acromegaly 3) enlargement of internal organs and thickening of bones, especially in hands feet and face.

b) Somatotropin does not induce any other endocrine gland to release its hormone

A – Stimulates the activity of thyroid giand

B – AdrenoCortico Tropic Hormone(ACTH) 

C – Gonado Tropic Hormone(GTH) 

D – Stimulates the activity of ovaries 

E – Production of milk 

F – Growth Hormone (GH) or Somatotropic Hormone (STH)

d) It decreases arterial pressure  

Yes, pensioners can contribute/share poems, photographs, interesting articles which will be displayed on the Sankalp portal.

• Transmitting impulses from different parts of our body to and from the brain.
• Coordinates the rapid and repeated movements during walking, running, etc.
• Effects certain reflex actions.

Reflex Actions: Reflex actions are the accidental and involuntary responses of the body in response to a stimuli. There are cerebral and spinal reflexes.

Reflex Arc: Reflex arc is the pathway of impulses in the reflex action.

a. Leeuwenhoek

a) It is a direct-acting sympathomimetic

b) Decrease the mean pressure below normal before returning to the control value

Sensory impulses reach the spinal cord through the dorsal root. Motor impulses go out of the spinal cord through the ventral root.

A condition of being able to resist a particular disease especially through preventing development of a pathogenic microorganism or by counteracting the effects of its products.

b. Immobilization

Fibrates stimulate cellular fatty acid uptake, conversion to acyl-CoA derivatives, and catabolism by the β-oxidation pathways, which, combined with a reduction in fatty acid and triglyceride synthesis, results in a decrease in VLDL production.

b. John Tyndall

Compound Microscope was discovered by Janssen and Hans.

Reduction of virulence is known as Attenuation.

The lethal dose required to kill 50% of the lab animals tested under standard called LD₅₀.

c. Lactose dehydrogenase

e. All of the above 

The term bacteriophage was coined by De’Herelle.

Eye cannot resolve any image less than 5ìm.

Monoclonal antibodies are associated with the name of Burnet.

d. All of the above

Viral infection of bacteria was discovered by F.W. Twort.

Enhancement of virulence is known as Exaltation.

Correct option is C) to make

Correct option is C) for

The Right option is :(d) 1 and 4

Correct option is D) to open my mouth

Correct option is C) she was free 

Correct option is B) not to make

Correct option is A) not to be late

Correct option is A) who told us the news