Test 118 (General physiology)
1. Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. indirectly increases the nitrogen excretion e. has a beta like action on the cardiac muscle Answera.T b.T c.T d.T e.T Thyroid hormone increases oxygen dissociation by increasing the level of 2,3-DPG within the red blood cells. It is calorogenic and increases the metabolic rate and hence increases nitrogen excretion.
a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. indirectly increases the nitrogen excretion e. has a beta like action on the cardiac muscle Answera.T b.T c.T d.T e.T Thyroid hormone increases oxygen dissociation by increasing the level of 2,3-DPG within the red blood cells. It is calorogenic and increases the metabolic rate and hence increases nitrogen excretion.
b. exerts a negative feedback action on TSH production
c. increases the concentration of 2,3-DPG within the red blood cells
d. indirectly increases the nitrogen excretion
e. has a beta like action on the cardiac muscle
2. Aldosterone: a. increases mRNA synthesis b. deficiency results in hypotension c. increases sodium reabsorption from sweat d. release is stimulated by an increase in angiotensin II e. is secreted by the zona glomerulosa Answera.T b.T c.T d.T e.T Aldosterone is a steroid hormone secreted by the zona glomerulosa. It increases the sodium reabsorption from urine and sweat. 3. Insulin: a. has a half-lilfe of 60 minutes b. stimulate glycolysis in liver and muscle c. stimulate lipogenesis in liver and fat tissues d. is synthesized in the endoplasmic reticulum of the b cells e. receptors are decreased in the presence of uraemia Answera.F b.F c.T d.T e.T The half-life of insulin is only 10 to 30 minutes. It stimulates glycogenesis in liver and muscle. .
2. Aldosterone: a. increases mRNA synthesis b. deficiency results in hypotension c. increases sodium reabsorption from sweat d. release is stimulated by an increase in angiotensin II e. is secreted by the zona glomerulosa Answera.T b.T c.T d.T e.T Aldosterone is a steroid hormone secreted by the zona glomerulosa. It increases the sodium reabsorption from urine and sweat.
a. increases mRNA synthesis b. deficiency results in hypotension c. increases sodium reabsorption from sweat d. release is stimulated by an increase in angiotensin II e. is secreted by the zona glomerulosa Answera.T b.T c.T d.T e.T Aldosterone is a steroid hormone secreted by the zona glomerulosa. It increases the sodium reabsorption from urine and sweat.
b. deficiency results in hypotension
c. increases sodium reabsorption from sweat
d. release is stimulated by an increase in angiotensin II
e. is secreted by the zona glomerulosa
3. Insulin: a. has a half-lilfe of 60 minutes b. stimulate glycolysis in liver and muscle c. stimulate lipogenesis in liver and fat tissues d. is synthesized in the endoplasmic reticulum of the b cells e. receptors are decreased in the presence of uraemia Answera.F b.F c.T d.T e.T The half-life of insulin is only 10 to 30 minutes. It stimulates glycogenesis in liver and muscle. .
a. has a half-lilfe of 60 minutes b. stimulate glycolysis in liver and muscle c. stimulate lipogenesis in liver and fat tissues d. is synthesized in the endoplasmic reticulum of the b cells e. receptors are decreased in the presence of uraemia
b. stimulate glycolysis in liver and muscle
c. stimulate lipogenesis in liver and fat tissues
d. is synthesized in the endoplasmic reticulum of the b cells
e. receptors are decreased in the presence of uraemia
Answera.F b.F c.T d.T e.T The half-life of insulin is only 10 to 30 minutes. It stimulates glycogenesis in liver and muscle. .
4. Calcitonin: a. is a steroid hormone b. is produced by the parafollicular cells within the thyroid glands c. is increased in the presence of hypercalcaemia d. inhibits osteoclast activity e. increases incorporation of calcium into bone matrix Answera.F b.T c.T d.T e.T Calcitonin is a peptide hormone and counteracts the action of parathyroid hormone. 5. Parathyroid hormone: a. is a peptide hormone b. is released in response to hypocalcaemia c. increases phosphate reabsorption in the kidneys d. increases calcium excretion in the kidneys e. indirectly increases the calcium absorption from the gut Answera.T b.T c.F d.F e.T Parathyroid hormone increases phosphate excretion and calcium reabsorption. It stimulates the conversion of 25-OH cholecalciferol to 1,25-diOH cholecalciferol in the kidneys; the later increases calcium absorption from the gut. More MCQs
a. is a steroid hormone b. is produced by the parafollicular cells within the thyroid glands c. is increased in the presence of hypercalcaemia d. inhibits osteoclast activity e. increases incorporation of calcium into bone matrix Answera.F b.T c.T d.T e.T Calcitonin is a peptide hormone and counteracts the action of parathyroid hormone.
b. is produced by the parafollicular cells within the thyroid glands
c. is increased in the presence of hypercalcaemia
d. inhibits osteoclast activity
e. increases incorporation of calcium into bone matrix
5. Parathyroid hormone:
a. is a peptide hormone b. is released in response to hypocalcaemia c. increases phosphate reabsorption in the kidneys d. increases calcium excretion in the kidneys e. indirectly increases the calcium absorption from the gut Answera.T b.T c.F d.F e.T Parathyroid hormone increases phosphate excretion and calcium reabsorption. It stimulates the conversion of 25-OH cholecalciferol to 1,25-diOH cholecalciferol in the kidneys; the later increases calcium absorption from the gut.
b. is released in response to hypocalcaemia
c. increases phosphate reabsorption in the kidneys
d. increases calcium excretion in the kidneys
e. indirectly increases the calcium absorption from the gut
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