Back to CHEMICAL COORDINATION AND INTEGRATION

Your Progress

0 / 198 Answered

Correct

Incorrect

Accuracy

NEET • BIOLOGY • CHEMICAL COORDINATION AND INTEGRATION

Chemical coordination and integration practice · Medium

Try a question, then open “View answer” to check it. Sign in to submit answers and save progress.

Practice format and chapter quiz

The practice player uses single-correct-answer MCQs. Chapter quizzes help you review a topic; they are not full-length NEET mock papers.

Take a chapter quiz →

Showing 31-60 of 198 questions

31 Medium

31 of 198

Analyzing +4 | -1

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R:

Assertion A: FSH acts upon ovarian follicles in female and Leydig cells in male.

Reason R: Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in
male human being.

In the light of the above statements, choose the correct answer from the options given below:

View answer and explanation

Correct option: C

A is false but R is true

Option C (A is false but R is true) is correct because FSH acts on Sertoli cells in males, not Leydig cells, and the Reason accurately describes estrogen and androgen secretion.

32 Medium

32 of 198

Remembering +4 | -1

Depict the correct line of the hormone

View answer and explanation

Correct option: A

α-glucagon, β- insulin, δ-somatostatin

Option A (α-glucagon, β- insulin, δ-somatostatin) is correct because alpha cells secrete glucagon, beta cells secrete insulin, and delta cells secrete somatostatin in the Islets of Langerhans.

33 Medium

33 of 198

Remembering +4 | -1

Which hormone maintain the sleep-wake cycle

View answer and explanation

Correct option: A

Melatonin

Option A (Melatonin) is correct because melatonin, secreted by the pineal gland, plays a crucial role in regulating the sleep-wake cycle.

34 Medium

34 of 198

Remembering +4 | -1

Which of the following is correct

View answer and explanation

Correct option: B

Diabetes - Sugar free

Option B (Diabetes - Sugar free) is correct because diabetes management often involves a sugar-free or low-sugar diet.

35 Medium

35 of 198

Analyzing +4 | -1

Assertion: Insulin stimulates glycogenolysis
and gluconeogenesis resulting in
hyperglycemia.

Reason: Prolonged hyperglycemia leads to
complex disorder called diabetes insipidus.

View answer and explanation

Correct option: D

If both Assertion and Reason are false

Option D (If both Assertion and Reason are false) is correct because insulin stimulates glycogenesis (not glycogenolysis) and inhibits gluconeogenesis, resulting in hypoglycemia, and diabetes insipidus is related to ADH, not hyperglycemia.

36 Medium

36 of 198

Remembering +4 | -1

Neurons of people suffering from diabetes insipidus do not secrete

View answer and explanation

Correct option: D

ADH

Option B (PTH and TCT) is correct because PTH (parathyroid hormone) increases blood calcium levels, while TCT (thyrocalcitonin or calcitonin) decreases blood calcium levels, thus maintaining calcium balance.

37 Medium

37 of 198

Remembering +4 | -1

I. aldosterone,  II. norephinephrine,  III. Sexcorticoids, , . IV. Mineralocorticoids V. Glucocorticoids.  Among the given hormone those anti inflammatory effects are

View answer and explanation

Correct option: D

Only V

Option D is correct because glucocorticoids have anti-inflammatory effects.

38 Medium

38 of 198

Remembering +4 | -1

Pituitary gland is also called I. smallest endocrinal gland,  II. master endocrine gland,  III. hypophysis.  Choose the correct combination

View answer and explanation

Correct option: C

I, II and III

Option C is correct because the pituitary gland is indeed the smallest endocrine gland, the master endocrine gland, and is also known as the hypophysis.

39 Medium

39 of 198

Understanding +4 | -1

What effect does insulin have in a normal human body?

View answer and explanation

Correct option: B

It stimulates formation of glycogen in the liver

Option B (It stimulates formation of glycogen in the liver) is correct because insulin promotes the conversion of glucose to glycogen in the liver, thus lowering blood sugar.

40 Medium

40 of 198

Remembering +4 | -1

Releasing hormone and inhibiting hormones are produced by

View answer and explanation

Correct option: C

Hypothalamus

The correct answer is Hypothalamus because it produces releasing and inhibiting hormones that control the anterior pituitary gland.

41 Medium

41 of 198

Understanding +4 | -1

Read the statements given below identify which of them are true and which of them are false. Select the correct option after referring to the given table

A. The pituitary gland is present in a bony cavity of the skull knows as sella tursica

B. The pancreas is only an endocrine gland

C. The diurnal rhythm of the body is maintained by the pineal gland

D. Glucocorticoids stimulate glycolysis, lipolysis and proteolysis

View answer and explanation

Correct option: A

A-True, B-False, C-True,

D

-False

Option A (A-True, B-False, C-True, D-False) is correct because the pituitary gland is in the sella turcica, the pancreas is both endocrine and exocrine, the pineal gland maintains diurnal rhythm, and glucocorticoids stimulate gluconeogenesis, not glycolysis.

42 Medium

42 of 198

Remembering +4 | -1

Somatostatin from hypothalamus glands

View answer and explanation

Correct option: B

Inhibits the release of growth hormone

Option B (Inhibits the release of growth hormone) is correct because somatostatin from the hypothalamus inhibits the secretion of growth hormone from the pituitary gland.

43 Medium

43 of 198

Remembering +4 | -1

Secretion is under control of neurosecretory nerve axons in

View answer and explanation

Correct option: D

Posterior pituitary

Option D (Posterior pituitary) is correct because the posterior pituitary releases hormones synthesized by hypothalamic neurons, and their secretion is directly controlled by neurosecretory nerve axons.

44 Medium

44 of 198

Analyzing +4 | -1

Assertion : Females have less stature than males
after puberty.

Reason : This happens because of the presence
of hCG in the blood of females.

View answer and explanation

Correct option: C

If Assertion is true but Reason is false

Option C (If Assertion is true but Reason is false) is correct because females generally have less stature than males after puberty, but this is due to hormonal differences (estrogen causing earlier epiphyseal plate closure), not hCG.

45 Medium

45 of 198

Remembering +4 | -1

Polydipsia means …A…
Polyphagia means …B…
Glycosuria means …C…
Choose the correct option for A, B and C

View answer and explanation

Correct option: A

A-Excessive thirst, B-Excessive eating, C-Glucose in urine

Option A (A-Excessive thirst, B-Excessive eating, C-Glucose in urine) is correct because it accurately defines the terms polydipsia, polyphagia, and glycosuria.

Explore Other Chapters in BIOLOGY

View All →

ANIMAL KINGDOM 756 MCQs PLANT KINGDOM 415 MCQs ANATOMY OF FLOWERING PLANTS 404 MCQs MOLECULAR BASIS OF INHERITANCE 404 MCQs PRINCIPLE OF INHERITANCE AND VARIATION 374 MCQs EVOLUTION 362 MCQs

46 Medium

46 of 198

Remembering +4 | -1

Endemic goitre is state of

View answer and explanation

Correct option: C

Decreased thyroid function

Option C (Decreased thyroid function) is correct because endemic goiter is caused by iodine deficiency, leading to hypothyroidism and thyroid enlargement.

47 Medium

47 of 198

Remembering +4 | -1

______ gland degenerates in old age, causing weakening of immune response.

View answer and explanation

Correct option: A

Thymus

The correct answer is A (Thymus) because the thymus gland degenerates with age, leading to a decline in immune function.

48 Medium

48 of 198

Analyzing +4 | -1

Assertion: Adrenal cortex is not vital for survival and may be removed without subsequently leading to death.

Reason: Adrenal cortex secretes a number of steroid hormones which have only cumulative effects on the hormones of other glands.

View answer and explanation

Correct option: D

Both assertion and reason are false.

Option D (Both assertion and reason are false) is correct because the adrenal cortex is vital for survival, and its hormones have specific, not just cumulative, effects.

49 Medium

49 of 198

Understanding +4 | -1

Which statement is incorrect regarding pineal gland?

View answer and explanation

Correct option: A

Located on the ventral side of fore brain

Option A (Located on the ventral side of fore brain) is correct because the pineal gland is located on the dorsal side of the forebrain, not the ventral side.

50 Medium

50 of 198

Remembering +4 | -1

Cholecystokinin is secretion of

View answer and explanation

Correct option: A

Duodenum that causes contraction of gall bladder

Option A (Duodenum that causes contraction of gall bladder) is correct because Cholecystokinin (CCK) is secreted by the duodenum and stimulates the contraction of the gallbladder, releasing bile to aid in digestion.

51 Medium

51 of 198

Understanding +4 | -1

The hydrophilic hormones interact with …A… . While the hydrophobic hormones interact with …B… Choose the correct option for A and B

View answer and explanation

Correct option: A

A-cell membrane receptors; B-nuclear receptors

Option A (A-cell membrane receptors; B-nuclear receptors) is correct because hydrophilic hormones bind to cell membrane receptors, while hydrophobic hormones bind to nuclear receptors.

52 Medium

52 of 198

Analyzing +4 | -1

Which of the following is incorrectly paired?

View answer and explanation

Correct option: C

Progesterone – Increased Plasma glucose level

Option C (Progesterone – Increased Plasma glucose level) is correct because progesterone does not directly increase plasma glucose levels. It primarily supports pregnancy.

53 Medium

53 of 198

Remembering +4 | -1

Receptor hormone complex is formed when, the binding of

View answer and explanation

Correct option: A

Hormone to its respective receptor takes place

Option A (Hormone to its respective receptor takes place) is correct because the receptor-hormone complex is formed when a hormone binds to its specific receptor.

54 Medium

54 of 198

Understanding +4 | -1

I. Hypothyroidism causes irregularity of menstrual cycle
II. Hyperthyroidism adversely affects the body physiology
III. Hypothyroidism cause cretinism
IV. Hypothyroidism causes goitre
Which of the above statements are correct?
Choose the correct option

View answer and explanation

Correct option: D

All of these

Option D (All of these) is correct because all the statements regarding hypothyroidism and its effects are accurate.

55 Medium

55 of 198

Understanding +4 | -1

Rapid increase in the blood sugar level of a patient can be immediately reduced by

View answer and explanation

Correct option: B

Injecting insulin intramuscularly

Option A (Injecting insulin intravenously) is correct because intravenous injection allows for the fastest absorption and action of insulin.

56 Medium

56 of 198

Remembering +4 | -1

Decrease in the calcium level in blood is caused by

View answer and explanation

Correct option: B

Calcitonin

Option B (Calcitonin) is correct because calcitonin, secreted by the thyroid gland, lowers blood calcium levels by inhibiting bone resorption and increasing calcium excretion.

57 Medium

57 of 198

Analyzing +4 | -1

Assertion: A tumor of adrenal cortex may cause
Addison’s disease.

Reason: This happens due to over secretion of
cortisol by the tumor

View answer and explanation

Correct option: D

If both Assertion and Reason are false

Option D (both Assertion and Reason are false) is correct because a tumor of the adrenal cortex typically causes Cushing's syndrome due to oversecretion of cortisol, not Addison's disease which is caused by hyposecretion.

58 Medium

58 of 198

Remembering +4 | -1

Which hormone secreted by the pineal gland

View answer and explanation

Correct option: A

Melatonin

Option A (Melatonin) is correct because the pineal gland primarily secretes melatonin, which regulates sleep-wake cycles.

59 Medium

59 of 198

Understanding +4 | -1

Assertion: Neurohypophysis is under the direct regulation of the hypothalamus

Reason: Neurohypophysis stores and releases two hormones called oxytocin and vasopressin which are actually synthesized by hypothalamus.

View answer and explanation

Correct option: C

Both (A) and (R) are true and (R) is the correct explanation of (A)

The correct answer is C (Both (A) and (R) are true and (R) is the correct explanation of (A)) because the neurohypophysis's function is directly controlled by the hypothalamus, which synthesizes the hormones it releases.

60 Medium

60 of 198

Application +4 | -1

A 35year old man has extremely long limbs and digits. He also has serve disfigurement of the facial
features. Which of the following could be a probable cause for it?

View answer and explanation

Correct option: B

Hypersecretion of a hormone from adenohypophysis

Option B (Hypersecretion of a hormone from adenohypophysis) is correct because the adenohypophysis (anterior pituitary) secretes growth hormone, and its hypersecretion in adults leads to acromegaly, characterized by elongated limbs, digits, and facial disfigurement.

Revision notes and key takeaways

Review CHEMICAL COORDINATION AND INTEGRATION in your textbook or class notes, then use this set to check your understanding.

Showing 31-60 of 198 questions

Continue Your Practice

📚 Switch Set (MEDIUM)

Chapter Sets

ALL 381 MCQs EASY 152 MCQs HARD 31 MCQs MEDIUM 198 MCQs

0 /198

0✓ 0✗

0% Accuracy