General
✓✗The islets of Langerhans in a normal human pancreas are about
- 1 to 2 million, forming 1 to 2 per cent of pancreatic tissue
- 10 to 20, forming the whole pancreas
- 50 million, forming 90 per cent of the pancreas
- 100, forming half of the pancreas
General
✓✗Given below are two statements.
Statement I: Glucagon reduces the cellular glucose uptake and utilisation.
Statement II: Insulin stimulates the conversion of glucose to glycogen.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: Glucagon reduces the cellular glucose uptake and utilisation.
Statement II: Insulin stimulates the conversion of glucose to glycogen.
In the light of the above statements, choose the correct answer from the options given below.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗In which of the following ways do oxytocin and vasopressin differ in their main targets?
- Oxytocin - kidney tubules; vasopressin - uterine smooth muscles
- Oxytocin - uterine smooth muscles; vasopressin - kidney tubules
- Both act mainly on the distal tubules of the kidney nephron
- Both act mainly on the smooth muscles of the mammary glands
General
✓✗Given below are two statements.
Statement I: Addison's disease results from overproduction of adrenal cortex hormones.
Statement II: Aldosterone helps in the excretion of K+ and phosphate ions.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: Addison's disease results from overproduction of adrenal cortex hormones.
Statement II: Aldosterone helps in the excretion of K+ and phosphate ions.
In the light of the above statements, choose the correct answer from the options given below.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗Given below are two statements.
Statement I: The adrenal cortex secretes adrenaline.
Statement II: Glucocorticoids inhibit cellular uptake and utilisation of amino acids.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: The adrenal cortex secretes adrenaline.
Statement II: Glucocorticoids inhibit cellular uptake and utilisation of amino acids.
In the light of the above statements, choose the correct answer from the options given below.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗When blood pressure is increased, ANF is secreted and causes
- retention of sodium and water
- dilation of the blood vessels, reducing blood pressure
- constriction of blood vessels, raising blood pressure
- increased heart rate
General
✓✗The thymus plays a major role in the
- regulation of blood calcium
- secretion of thyrotropin
- regulation of body temperature
- development of the immune system
General
✓✗Given below are two statements.
Statement I: Hormones binding to intracellular receptors regulate gene expression through the hormone-receptor complex.
Statement II: Epinephrine is a steroid hormone.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: Hormones binding to intracellular receptors regulate gene expression through the hormone-receptor complex.
Statement II: Epinephrine is a steroid hormone.
In the light of the above statements, choose the correct answer from the options given below.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗In vertebrates, the number of chemicals that act as hormones and provide coordination is
- large
- zero
- only one
- only two
General
✓✗Glucocorticoids stimulate
- gluconeogenesis, lipolysis and proteolysis
- glycogen formation from glucose only
- water loss through urine
- RBC destruction
General
✓✗Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Hormones are called chemical messengers.
Reason (R): Hormones carry information from the endocrine gland to the target cells.
In the light of the above statements, choose the correct answer from the options given below.
Assertion (A): Hormones are called chemical messengers.
Reason (R): Hormones carry information from the endocrine gland to the target cells.
In the light of the above statements, choose the correct answer from the options given below.
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion
- Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- Assertion is true but Reason is false
- Both Assertion and Reason are false
General
✓✗Gastrin, secretin, cholecystokinin and GIP are hormones secreted by the
- kidney tubules of nephron
- heart muscle wall
- adrenal glands
- gastro-intestinal tract
General
✓✗In old individuals, the thymus is
- enlarged
- fused with the thyroid
- doubled in size
- degenerated
General
✓✗Several other non-endocrine tissues secrete hormones called
- antibodies
- growth factors
- digestive enzymes
- neurotransmitters
General
✓✗Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The pineal gland is an endocrine gland.
Reason (R): It secretes melatonin directly into the blood without any duct.
In the light of the above statements, choose the correct answer from the options given below.
Assertion (A): The pineal gland is an endocrine gland.
Reason (R): It secretes melatonin directly into the blood without any duct.
In the light of the above statements, choose the correct answer from the options given below.
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion
- Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- Assertion is true but Reason is false
- Both Assertion and Reason are false