Biology
Assertion (A): Hormones are the secretions from some glandular parts of the body which regulate certain physiological processes by chemical means.
Reason (R): Hormones are directly poured into the target organs which are usually very close to the source/gland secreting the hormones.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Related Questions
Assertion (A): The tube/canal which transmits the air currents from the pinna to tympanum is termed as eustachian tube.
Reason (R): The eustachian tube equalizes the air pressure on either side of the ear drum allowing it to vibrate freely.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): The human ear is responsible for hearing, dynamic equilibrium and also static balance.
Reason (R): Cochlea, semi-circular canals and vestibule (utriculus and sacculus) are responsible for hearing, dynamic balance and static balance respectively.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): Adrenal medulla secretes glucocorticoids which regulate glucose levels of the blood.
Reason (R): Glucocorticoids, a kind of cortisone, stimulate the deposition of extra glucose in blood as glycogen in the liver and muscles. The roles of insulin and glucocorticoids are the same.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): Oversecretion of insulin causes hyperglycemia or diabetes mellitus.
Reason (R): Oversecretion of insulin can lead to hypoglycemia by casuing excessive uptake of glucose from the blood into the cells, which in turn can lead to increased insulin resistance and ultimately result in hyperglycemia or diabetes mellitus.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.