NEET Exam  >  NEET Tests  >  Biology Class 11  >  Test: Human Endocrine System - NEET MCQ

Test: Human Endocrine System - NEET MCQ


Test Description

40 Questions MCQ Test Biology Class 11 - Test: Human Endocrine System

Test: Human Endocrine System for NEET 2024 is part of Biology Class 11 preparation. The Test: Human Endocrine System questions and answers have been prepared according to the NEET exam syllabus.The Test: Human Endocrine System MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Human Endocrine System below.
Solutions of Test: Human Endocrine System questions in English are available as part of our Biology Class 11 for NEET & Test: Human Endocrine System solutions in Hindi for Biology Class 11 course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Human Endocrine System | 40 questions in 40 minutes | Mock test for NEET preparation | Free important questions MCQ to study Biology Class 11 for NEET Exam | Download free PDF with solutions
Test: Human Endocrine System - Question 1

Thyroxine and Tri-iodothyronine, produced by the thyroid gland, are synthesised from iodine and ___________.

Detailed Solution for Test: Human Endocrine System - Question 1

Thyroxine and Triiodothyronine are iodinated form of an amino acid called tyrosine

Test: Human Endocrine System - Question 2

Which of the following statements regarding glucagon is false?

Detailed Solution for Test: Human Endocrine System - Question 2

Glucagon increases blood sugar level. It is secreted by α-cells of islets of Langerhans of pancreas (heterocrine gland).

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Human Endocrine System - Question 3

Which one of the following endocrine glands stores its secretion in the extracellular space before discharging it into the blood?

Detailed Solution for Test: Human Endocrine System - Question 3

Thyroid gland stores its hormones in the colloid. Colloid is a homogenous material present in the thyroid follicles of thyroid gland.

Test: Human Endocrine System - Question 4

Which hormone stimulates the secretion of milk from female?

Detailed Solution for Test: Human Endocrine System - Question 4

Prolactin

Explanation: Prolactin is a hormone produced by the pituitary gland that stimulates the mammary glands in the breasts to produce milk. It is responsible for the growth and development of mammary glands during pregnancy and the secretion of milk after childbirth. Oxytocin, on the other hand, is responsible for the release of milk from the mammary glands during breastfeeding (milk let-down reflex).

Test: Human Endocrine System - Question 5

The hormone which regulates the basal metabolism in our body is secretd from

Detailed Solution for Test: Human Endocrine System - Question 5

Thyroid hormones, thyroxine and tri-iodothyronine regulate the basal metabolism of our body.

Test: Human Endocrine System - Question 6

The gonadotropic hormones are secreted by

Detailed Solution for Test: Human Endocrine System - Question 6

Gonadotropic hormones (LH and FSH), secreted by anterior lobe of pituitary regulate growth and activity of gonads.

Test: Human Endocrine System - Question 7

Secretion of progesterone by corpus luteum is initiated by

Detailed Solution for Test: Human Endocrine System - Question 7

Luteinising hormone (LH) secreted by the anterior lobe of pituitary gland stimulates corpus luteum of the ovary to secrete progesterone.

Test: Human Endocrine System - Question 8

The function of oxytocin is to help in

Detailed Solution for Test: Human Endocrine System - Question 8

Oxytocin, secreted by the posterior pituitary gland causes contraction of smooth muscles of the uterus during child birth.

Test: Human Endocrine System - Question 9

Which part of our body secretes the hormone secretin?

Detailed Solution for Test: Human Endocrine System - Question 9

Secretin hormone is secreted by the Brunner's glands present in the wall of the duodenum.

Test: Human Endocrine System - Question 10

In emergency, blood pressure is controlled by

Detailed Solution for Test: Human Endocrine System - Question 10
  • The hormone secreted by the inner part of adrenal gland is mainly responsible for controlling the blood pressure in emergency.
  • Under emergency conditions, it initiates a quick reaction to control the blood pressure by increasing heart rate and force of heart contractions.
Test: Human Endocrine System - Question 11

MSH is secreted by

Detailed Solution for Test: Human Endocrine System - Question 11

Middle lobe of pituitary secretes MSH (melanocyte stimulating hormone) that controls the synthesis of melanin granules in the chromatophores.

Test: Human Endocrine System - Question 12

Adrenaline directly affects on

Detailed Solution for Test: Human Endocrine System - Question 12

Adrenaline prepares the body for emergency reactions like fight and flight. Therefore, it directly affects the SA node to increase the rate of heart beat.

Test: Human Endocrine System - Question 13

Sertoli cells are regulated by the pituitary hormone known as

Detailed Solution for Test: Human Endocrine System - Question 13

Sertoli cells are regulated by FSH secreted by the anterior pituitary.

Test: Human Endocrine System - Question 14

Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis?

Detailed Solution for Test: Human Endocrine System - Question 14

Adrenaline (Epinephrine) hormone is secreted by adrenal medulla under the conditions of emergency. Therefore, it is also known as emergency hormone. During emergency, it is released and causes dilation of blood vessels, so that the blood flow is increased. It also increases heart beat so that more oxygen is consumed and it also increases blood glucose level.

Test: Human Endocrine System - Question 15

A person is having problem with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?

Detailed Solution for Test: Human Endocrine System - Question 15

Parathyroid glands located behind the thyroid gland, produce a hormone called parathormone. This hormone maintains calcium and phosphorus balance in the body. Thus, if a person is having problem with calcium and phosphorus metabolism in the body, this means, his parathyroid gland is not functioning properly.

Test: Human Endocrine System - Question 16

The blood calcium level is lowered by the deficiency of

Detailed Solution for Test: Human Endocrine System - Question 16

Parathormone secreted by parathyroid gland regulates the level of calcium in the blood. It stimulates the release of calcium from the bones into the blood, increases calcium absorption from the intestine into the blood and it also increases calcium reabsorption from the nephrons into the blood. Therefore, its deficiency leads to low blood calcium level.

Test: Human Endocrine System - Question 17

Diabetes insipidus occurs due to the hyposecretion of

Detailed Solution for Test: Human Endocrine System - Question 17

Vasopressin (antidiuretic hormone, ADH) released from posterior pituitary increases reabsorption of water from distal and collecting tubules of the kidney, thus, helping in producing concentrated urine. If there is hyposecretion of vasopressin, then water will not be reabsorbed from the tubules and the urine thus produced will be dilute. This disorder is called diabetes insipidus which is characterised by producing dilute urine several times a day.

Test: Human Endocrine System - Question 18

Secretion of which of the following is under the control of neurosecretory nerve cells?

Detailed Solution for Test: Human Endocrine System - Question 18

The neurosecretory cells of the hypothalamus secrete releasing factors (neurohormones) that regulate the secretion of hormones from the anterior pituitary.

Test: Human Endocrine System - Question 19

The source of somatostatin is same as that of

Detailed Solution for Test: Human Endocrine System - Question 19

Insulin, glucagon and somatostatin, are secreted by islets of Langerhans of pancreas, Somatostatin suppresses the release of other hormones from pancreas.

Test: Human Endocrine System - Question 20

All the following are anabolic hormones, except:

Detailed Solution for Test: Human Endocrine System - Question 20

Cortisol affects muscle tissue balance by increasing protein breakdown and decreasing protein synthesis, thus it is a catabolic hormone.

Test: Human Endocrine System - Question 21

Which of the following endocrine glands is responsible for the proliferation and maturation of T-cells?

Detailed Solution for Test: Human Endocrine System - Question 21

Thymus is known as the training school of T-lymphocytes and is responsible for the proliferation and maturation of T-lymphocytes.

Test: Human Endocrine System - Question 22

Adrenocorticotropic hormone is secreted by

Detailed Solution for Test: Human Endocrine System - Question 22

Adrenocorticotropic hormone is secreted by anterior pituitary. This hormone stimulates adrenal cortex to secrete its hormones.

Test: Human Endocrine System - Question 23

The islets of Langerhans are found in

Detailed Solution for Test: Human Endocrine System - Question 23

Islets of Langerhans are found in pancreas. It consists of four types of cells - alpha cells that secrete glucagon, β-cells that secrete insulin, delta cells that secrete somatostatin and F cells that secrete pancreatic polypeptide.

Test: Human Endocrine System - Question 24

Ovulation in females in under the control of

Detailed Solution for Test: Human Endocrine System - Question 24

Ovulation in females is under the control of luteinsing hormone (LH). Secreted by the anterior pituitary gland. It also stimulates development of corpus luteum.

Test: Human Endocrine System - Question 25

The function of pineal body is to

Detailed Solution for Test: Human Endocrine System - Question 25

Pineal body is a very small, reddish-grey, vascular, conical, solid body located in the brain. It secretes a hormone named melatonin. Melatonin makes the skin colour lighter in certain animals and also regulates the functioning of gonads, thus, controls sexual behaviour and regulates the period of puberty.

Test: Human Endocrine System - Question 26

Goitre is a pathological condition associated with

Detailed Solution for Test: Human Endocrine System - Question 26

Goitre is caused due to the deficiency of iodine in the diet. Iodine is needed for the synthesis of thyroxine secreted by thyroid gland. The production of this hormone decreases with poor iodine diet. This causes enlargement of thyroid gland which is called goitre.

Test: Human Endocrine System - Question 27

Which of the following is not a characteristics of insulin?

Detailed Solution for Test: Human Endocrine System - Question 27

Insulin hormone produced by beta cells of pancreas, is central to regulating carbohydrate metabolism in the body. It causes cells in the skeletal muscles, and fat tissue to absorb glucose from the blood.

Test: Human Endocrine System - Question 28

Glucagon is a peptide hormone, produced by alpha cells of the pancreas. Which of the following factors increase its secretion?

a. Low blood glucose
b. High blood glucose
c. Fatty acids
d. Exercise

Detailed Solution for Test: Human Endocrine System - Question 28

Glucagon secretion increases with low blood glucose to raise the concentration of glucose in the bloodstream. Exercise also stimulates secretion of glucagon.

Test: Human Endocrine System - Question 29

What is the function of calcitonin?

Detailed Solution for Test: Human Endocrine System - Question 29

Calcitonin is a hormone secreted by the thyroid gland. It lowers the calcium level in the blood by suppressing the release of calcium ions from the bones.

Test: Human Endocrine System - Question 30

Which of the following is called emergency gland of the body?

Detailed Solution for Test: Human Endocrine System - Question 30

Adrenal gland is called the emergency gland of the body. Adrenaline is secreted by adrenal medulla on stimulation by sympathetic nervous system for meeting an emergency of stress condition, like injury, pain fear, Accident, grief, fall in blood pressure etc. Hence adrenal gland is called emergency hormone.

Test: Human Endocrine System - Question 31

TSH (thyroid stimulating hormone) is produced by

Detailed Solution for Test: Human Endocrine System - Question 31

Thyroid stimulating hormone (TSH) is produced by the anterior lobe of the pituitary and it stimulates production and secretion of thyroid hormones.

Test: Human Endocrine System - Question 32

Increase in bleeding time and delay in blood coagulation is due to the deficiency of which hormone?

Detailed Solution for Test: Human Endocrine System - Question 32

Calcium plays an important role in blood clotting. Parathormone, a hormone released by parathyroid glands, increases calcium level in the blood. Therefore, deficiency of this hormone will decrease Ca2+ level in blood, thus leading to delay in blood clotting and increase in bleeding time.

Test: Human Endocrine System - Question 33

Which of the following hormones is necessary for the development of secondary sexual characters in human beings?

Detailed Solution for Test: Human Endocrine System - Question 33

Estrogen, secreted by ovaries in females, stimulates the development of secondary sexual characters during puberty and maintains them through the reproductive years of adult life in females Testosterone is produced by testes in males, it stimulates the development of male secondary sexual characters like beard, moustache, etc.

Test: Human Endocrine System - Question 34

Which of the following is synthesised in both the brain and endocrine glands?

Detailed Solution for Test: Human Endocrine System - Question 34

Somatostatin is an inhibitory hormone which is secreted by hypothalamus in the brain and pancreas. Somatostatin from hypothalamus inhibits the secretion of growth hormone from the anterior lobe of pituitary. Somatostatin from pancreas inhibits the release of other hormones from pancreas like insulin and glucagon.

Test: Human Endocrine System - Question 35

Which of the following hormones does not have a particular target organ in the body?

Detailed Solution for Test: Human Endocrine System - Question 35

Growth hormone secreted by the anterior pituitary has a widespread effect in the body it stimulates growth of various body cells, promotes protein anabolism, absorption of calcium from bowel and conversion of glycogen to glucose.

Test: Human Endocrine System - Question 36

Which of the following hormones is stimulated by the sympathetic nervous system for meeting an emergency situation?

Detailed Solution for Test: Human Endocrine System - Question 36
  • The hypothalamus activates the sympathetic nervous system by sending signals through the autonomic nerves to the adrenal glands.
  • These glands respond by pumping the hormone epinephrine (also known as adrenaline) into the bloodstream.
Test: Human Endocrine System - Question 37

Reabsorption of Na+ is controlled by which one of the following hormones?

Detailed Solution for Test: Human Endocrine System - Question 37

Aldosterone (secreted by adrenal medulla) acts mainly on the renal tubules and stimulates the reabsorption of Na+ and water and excretion of K+ and phosphate ions.

Test: Human Endocrine System - Question 38

Low level of progesterone and estrogen in blood stimulate

Detailed Solution for Test: Human Endocrine System - Question 38

When secretion of hormones is under the control of factors or other hormones, it is called the feedback control. If the level of progesterone and estrogen is low in the blood, it stimulates the hypothalamus to secrete more FSH-RH which results in increased production of FSH from anterior pituitary which in turn stimulates the increased secretion of estrogen and progesterone from ovary.

Test: Human Endocrine System - Question 39

Hormones of which of the following endocrine glands lacks peptides, amines and sulphur?

Detailed Solution for Test: Human Endocrine System - Question 39

Hormones of testes and gonads are steroid in nature. They are derived from cholesterol.

Test: Human Endocrine System - Question 40

Which of the following sentences about steroid hormones is false?

Detailed Solution for Test: Human Endocrine System - Question 40

This sentence is false. Steroid hormones are lipids in their chemical nature.

190 videos|388 docs|210 tests
Information about Test: Human Endocrine System Page
In this test you can find the Exam questions for Test: Human Endocrine System solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Human Endocrine System, EduRev gives you an ample number of Online tests for practice

Up next

190 videos|388 docs|210 tests
Download as PDF

Up next