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(B) Statement-$I$ is correct: Melatonin is secreted by the pineal gland and plays a very important role in the regulation of a $24$-hour (diurnal) rhy

Vedclass · Accepted Answer

Statement-$I$ is correct but Statement-$II$ is incorrect.

Vedclass · Answer

(B) Statement-$I$ is correct: Melatonin is secreted by the pineal gland and plays a very important role in the regulation of a $24$-hour (diurnal) rhythm of our body,such as the sleep-wake cycle,body temperature,metabolism,pigmentation,the menstrual cycle,and our defense capability.Statement-$II$ is incorrect: Thyroxin (secreted by the thyroid gland) regulates the basal metabolic rate,supports the process of red blood cell formation (erythropoiesis),and controls the metabolism of carbohydrates,proteins,and fats. However,it is adrenaline and noradrenaline that increase the action of neurotransmitters,not thyroxin.

Column-$A$	Column-$B$
$(a)$ $ADH$	$(i)$ Pituitary
$(b)$ $ACTH$	$(ii)$ Mineralocorticoid
$(c)$ Aldosterone	$(iii)$ Diabetes mellitus
$(d)$ Insulin	$(iv)$ Diabetes insipidus
$(e)$ Testosterone	$(v)$ Vasodilator

Given below are two statements. Read them and choose the correct pair below.
Statement-$I$: Melatonin regulates the sleep-wake cycle,body temperature,metabolism,and reproductive cycles.
Statement-$II$: Thyroxin increases the action of neurotransmitters and supports the $RBC$ production.

Similar Questions

Match the items in Column-$A$ with those in Column-$B$:
Column-$A$ Column-$B$
$(a)$ $ADH$ $(i)$ Pituitary
$(b)$ $ACTH$ $(ii)$ Mineralocorticoid
$(c)$ Aldosterone $(iii)$ Diabetes mellitus
$(d)$ Insulin $(iv)$ Diabetes insipidus
$(e)$ Testosterone $(v)$ Vasodilator

Which of the following pairs are incorrectly matched?
$(a)$ Pineal gland - Metabolism,mental retardation
$(b)$ Thymus - Myasthenia gravis
$(c)$ Thyroid - Anti-inflammatory reaction
$(d)$ Pancreas - Chronic hyperglycemia

Select the correct option for the following statements:
$(1)$ Hyposecretion of growth hormone leads to gigantism / dwarfism.
$(2)$ Glucocorticoids are steroid / protein type hormones.
$(3)$ In females,luteinizing hormone induces ovulation / inhibits ovulation from the Graafian follicle.

From the perspective of embryonic origin,which of the following is ectodermal?

Match the items in Column-$I$ with Column-$II$:
Column-$I$ | Column-$II$
$(i)$ Acromegaly | $A$. Luteinising hormone
(ii) Vasopressin | $B$. Oxytocin
(iii) Ovulation | $C$. $GH$
(iv) Child birth | $D$. $FSH$
$(v)$ Spermatogenesis | $E$. Diabetes insipidus
The correct pairing sequence is:

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Given below are two statements. Read them and choose the correct pair below.Statement-$I$: Melatonin regulates the sleep-wake cycle,body temperature,metabolism,and reproductive cycles.Statement-$II$: Thyroxin increases the action of neurotransmitters and supports the $RBC$ production.