MERIT YARD

Class 11th Biology - Chemical Coordination and Integration - MERIT YARD

Question 1 / 40Which of the following is also called the 'Emergency Hormone'?

A) Insulin

B) Thyroxine

C) Glucagon

D) Adrenaline

Question 2 / 40Iodine is essential for the synthesis of:

A) Thyroxine

B) Testosterone

C) Insulin

D) Adrenaline

Question 3 / 40Insulin is secreted by which cells of Pancreas?

A) Alpha cells

B) Beta cells

C) Delta cells

D) Chief cells

Question 4 / 40Which of the following gland is known as the 'Master Gland'?

A) Thyroid

B) Thymus

C) Pineal

D) Pituitary

Question 5 / 40Diabetes insipidus is caused by the deficiency of:

A) Insulin

B) ADH (Vasopressin)

C) Glucagon

D) Oxytocin

Question 6 / 40Melatonin hormone is secreted by:

A) Pineal gland

B) Pituitary gland

C) Thyroid gland

D) Thymus gland

Question 7 / 40Which hormone regulates the 24-hour sleep-wake cycle?

A) Adrenaline

B) Cortisol

C) Insulin

D) Melatonin

Question 8 / 40Graves' disease is related to:

A) Hypothyroidism

B) Hyperthyroidism

C) Hypercalcemia

D) Hypocalcemia

Question 9 / 40The hormone that stimulates the ejection of milk from mammary glands is:

A) Oxytocin

B) Prolactin

C) Progesterone

D) Estrogen

Question 10 / 40Leydig cells secrete which hormone?

A) Estrogen

B) FSH

C) Progesterone

D) Testosterone

Question 11 / 40Erythropoietin hormone is produced by:

A) Liver

B) Kidney

C) Spleen

D) Heart

Question 12 / 40Which of the following acts as a second messenger?

A) ATP

B) GTP

C) cAMP

D) T3

Question 13 / 40Calcitonin (TCT) hormone ________ blood calcium level.

A) Increases

B) Decreases

C) Maintains constant

D) Zeroes out

Question 14 / 40The Sella turcica bony cavity lodges the:

A) Pineal gland

B) Thyroid gland

C) Thymus gland

D) Pituitary gland

Question 15 / 40Which hormone is called the 'Stress Hormone' in plants, but in humans Cortisol is often called the stress hormone?

A) Progesterone

B) Cortisol

C) Thyroxine

D) Melatonin

Question 16 / 40Alpha cells of islets of Langerhans secrete:

A) Glucagon

B) Insulin

C) Gastrin

D) Somatostatin

Question 17 / 40Which gland is active in young age but gradually disappears after puberty?

A) Thyroid

B) Adrenal

C) Thymus

D) Pituitary

Question 18 / 40The hormone responsible for the 'Fight or Flight' response is:

A) Thyroxine

B) Prolactin

C) Vasopressin

D) Epinephrine

Question 19 / 40Addison's disease is caused by the under-secretion of:

A) Thyroid hormones

B) Pituitary hormones

C) Adrenal cortex hormones

D) Pancreatic hormones

Question 20 / 40Acromegaly is caused by the hypersecretion of:

A) Growth Hormone (GH)

B) TSH

C) ACTH

D) FSH

Question 21 / 40Which hormone maintains the corpus luteum after fertilization?

A) FSH

B) LH (or hCG)

C) Thyroxine

D) Insulin

Question 22 / 40Catecholamines are produced by:

A) Adrenal cortex

B) Adrenal medulla

C) Thyroid

D) Pancreas

Question 23 / 40Parathyroid hormone (PTH) increases blood ________ levels.

A) Calcium

B) Sodium

C) Potassium

D) Magnesium

Question 24 / 40Which of the following is a steroid hormone?

A) Insulin

B) Glucagon

C) Epinephrine

D) Progesterone

Question 25 / 40Secretin and CCK are hormones secreted by the:

A) Stomach

B) Gastro-intestinal tract

C) Liver

D) Kidney

Question 26 / 40Which hormone is called the 'Pregnancy Hormone'?

A) Estrogen

B) FSH

C) LH

D) Progesterone

Question 27 / 40Myxedema is caused by the deficiency of:

A) Thyroid hormones

B) Insulin

C) Growth hormone

D) Cortisol

Question 28 / 40Hormone receptors for lipid-soluble hormones are mostly:

A) On cell membrane

B) Intracellular (mostly nuclear)

C) In lysosomes

D) In mitochondria

Question 29 / 40ANF hormone is produced by the:

A) Kidney

B) Liver

C) Heart (Atria)

D) Brain

Question 30 / 40Which of the following is an amino-acid derivative hormone?

A) Epinephrine

B) Insulin

C) Cortisol

D) Progesterone

Question 31 / 40Which of the following is a hyperglycemic hormone?

A) Insulin

B) Glucagon

C) Thyrocalcitonin

D) ADH

Question 32 / 40Pars intermedia secretes which hormone?

A) Oxytocin

B) Prolactin

C) MSH

D) TSH

Question 33 / 40Androgens are secreted by:

A) Thyroid

B) Pancreas

C) Thymus

D) Testis

Question 34 / 40Somatostatin is produced by the:

A) Hypothalamus

B) Adrenal gland

C) Pineal gland

D) Testes

Question 35 / 40Gland known as 'Biological Clock' is:

A) Thymus

B) Pituitary

C) Thyroid

D) Pineal

Question 36 / 40Which hormone maintains the water and electrolyte balance in the body?

A) Insulin

B) Aldosterone

C) Glucagon

D) Prolactin

Question 37 / 40Hormone secreted by ovaries that aids in childbirth is:

A) Estrogen

B) Progesterone

C) Relaxin

D) FSH

Question 38 / 40The hormone T3 and T4 contain:

A) Iodine

B) Magnesium

C) Calcium

D) Iron

Question 39 / 40Cushing's syndrome is related to the hypersecretion of:

A) Insulin

B) Thyroxine

C) Cortisol

D) Melatonin

Question 40 / 40Endocrine glands are:

A) Duct glands

B) Ductless glands

C) Enzyme producing only

D) Sweat producing