Active uptake of glucose is inhibited by (A) Ouabain (B) Phlorrizin (C) Digoxin (D) Alloxan

Active uptake of glucose is inhibited by (A) Ouabain (B) Phlorrizin (C) Digoxin (D) Alloxan
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Insulin is required for the active uptake of glucose by most of the cells except (A) Muscle cells (B) Renal tubular cells (C) Adipocytes (D) Liver cells

Description : Insulin is required for the active uptake of glucose by most of the cells except (A) Muscle cells (B) Renal tubular cells (C) Adipocytes (D) Liver cells

Last Answer : Answer : D

Sodium is involved in the active uptake of (A) D-Glucose (B) D-Galactose (C) L-Amino acids (D) All of these

Description : Sodium is involved in the active uptake of (A) D-Glucose (B) D-Galactose (C) L-Amino acids (D) All of these

Last Answer : Answer : D

Alloxan can experimentally induce diabetes mellitus due to (A) Stimulation of α cells of the islets of langerhans (B) Necrosis of the β cells of the islets (C) Potentiation of insulinase activity (D) Epinephrine like action

Description : Alloxan can experimentally induce diabetes mellitus due to (A) Stimulation of α cells of the islets of langerhans (B) Necrosis of the β cells of the islets (C) Potentiation of insulinase activity (D) Epinephrine like action

Last Answer : Answer : B

Physiological glycosuria is met with in (A) Renal glycosuria (B) Alimentary glycosuria (C) Diabetes Mellitus (D) Alloxan diabetes

Description : Physiological glycosuria is met with in (A) Renal glycosuria (B) Alimentary glycosuria (C) Diabetes Mellitus (D) Alloxan diabetes

Last Answer : B

Deficiency of insulin results in (A) Rapid uptake of sugar (B) Low blood glucose level (C) Decrease urine output (D) Presence of glucose in urine

Description : Deficiency of insulin results in (A) Rapid uptake of sugar (B) Low blood glucose level (C) Decrease urine output (D) Presence of glucose in urine

Last Answer : Answer : D

Cori cycle is (A) Synthesis of glucose (B) reuse of glucose (C) uptake of glycose (D) Both (A) & (B)

Description : Cori cycle is (A) Synthesis of glucose (B) reuse of glucose (C) uptake of glycose (D) Both (A) & (B)

Last Answer : D

Glucose uptake by liver cells is (A) Energy-consuming (B) A saturable process (C) Insulin-dependent (D) Insulin-independent

Description : Glucose uptake by liver cells is (A) Energy-consuming (B) A saturable process (C) Insulin-dependent (D) Insulin-independent

Last Answer : D

What is the effect of insulin on glucose uptake of cells?

Description : What is the effect of insulin on glucose uptake of cells?

Last Answer : Insulin facilitates the membrane transport of glucose in most of tissues, especially in muscles and adipose tissue. This is by glucose transporter, GIuT4. But glucose uptake by GlT2 is independent of insulin, it is seen in liver and brain.

Thyroid gland takes up circulating iodine (A) By simple diffusion (B) By facilitated diffusion (C) By active uptake (D) In exchange for chloride

Description : Thyroid gland takes up circulating iodine (A) By simple diffusion (B) By facilitated diffusion (C) By active uptake (D) In exchange for chloride

Last Answer : Answer : C

The active transport system for hepatic uptake of bilirubin is congenitally defective in (A) Gilbert’s disease (B) Crigler-Najjar syndrome (C) Rotor’s syndrome (D) Dubin-Johnson syndrome

Description : The active transport system for hepatic uptake of bilirubin is congenitally defective in (A) Gilbert’s disease (B) Crigler-Najjar syndrome (C) Rotor’s syndrome (D) Dubin-Johnson syndrome

Last Answer : Answer : A

Action of glycogen synthase is inhibited by (A) Insulin (B) Glucose (C) Mg2+ (D) Cyclic AMP

Description : Action of glycogen synthase is inhibited by (A) Insulin (B) Glucose (C) Mg2+ (D) Cyclic AMP

Last Answer : Answer : C

Hexokinase is inhibited in an allosteric manner by (A) Glucose-6-Phosphate (B) Glucose-1-Phosphate (C) Fructose-6-phosphate (D) Fructose-1, 6-biphosphate

Description : Hexokinase is inhibited in an allosteric manner by (A) Glucose-6-Phosphate (B) Glucose-1-Phosphate (C) Fructose-6-phosphate (D) Fructose-1, 6-biphosphate

Last Answer : Answer : A

The synthesis of glucose from pyruvate by gluconeogenesis (A) Requires the participation of biotin (B) Occurs exclusively in the cytosol (C) Is inhibited by elevated level of insulin (D) Requires oxidation/reduction of FAD

Description : The synthesis of glucose from pyruvate by gluconeogenesis (A) Requires the participation of biotin (B) Occurs exclusively in the cytosol (C) Is inhibited by elevated level of insulin (D) Requires oxidation/reduction of FAD

Last Answer : A

Why is glucose needed for the uptake of mineral ions? -Biology

Description : Why is glucose needed for the uptake of mineral ions? -Biology

Last Answer : answer:

Hormone which enhance cellular uptake and utilisation of glucose as well as does hypoglycemia through glucogenesis is

Description : Hormone which enhance cellular uptake and utilisation of glucose as well as does hypoglycemia through glucogenesis is

Last Answer : Hormone which enhance cellular uptake and utilisation of glucose as well as does hypoglycemia through glucogenesis is

Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization :

Description : Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization :

Last Answer : Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake ... B. Gastrin C. Insulin D. Glucagon

A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the following? a. Increased glucose uptake and increased glycogen breakdown occur in this circumstance. b. Suppressed activity of lipoprotein lipase results from TNFa c. TNFa stimulates lipolysis d. The differentiation process of pre-adipocytes is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs

Description : A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the ... is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs

Last Answer : Answer: a, b, c, d, e Tumor cachexia appears to be mediated by TNFa. Lipopolysaccharide (LPS), as well as other cytokines, activate a variety of inflammatory cells, most ... chronic syndromes of anorexia, weight loss, and cachexia that are associated with both chronic infection and malignancy

Regarding retinal metabolism: a. insulin is essential for the uptake of glucose by the retina b. anaerobic metabolism predominates c. the pigment retinal epithelium stores glycogen and supplies the need of the retina d. the demand of oxygen is met entirely by the central retinal artery

Description : Regarding retinal metabolism: a. insulin is essential for the uptake of glucose by the retina b. anaerobic metabolism predominates c. the pigment retinal epithelium stores glycogen and supplies the need of the retina d. the demand of oxygen is met entirely by the central retinal artery

Last Answer : anaerobic metabolism predominates

Insulin: a. is secreted as a pro-insulin b. increases protein synthesis c. is required for glucose uptake in all tissues d. is a steroid hormone

Description : Insulin: a. is secreted as a pro-insulin b. increases protein synthesis c. is required for glucose uptake in all tissues d. is a steroid hormone

Last Answer : is secreted as a pro-insulin

The effects of glucocorticoid hormones include: a. increase hepatic glycogen synthesis b. decrease glucose uptake by the adipose tissue c. decrease hepatic gluconeogesis d. increase protein synthesis in the skeletal muscles

Description : The effects of glucocorticoid hormones include: a. increase hepatic glycogen synthesis b. decrease glucose uptake by the adipose tissue c. decrease hepatic gluconeogesis d. increase protein synthesis in the skeletal muscles

Last Answer : . increase hepatic glycogen synthesis

Which of the following represents the action of insulin? (a) Increases blood glucose level by stimulating glucagon production. (b) Decreases blood glucose levels by forming glycogen. (c) Increases blood glucose levels by promoting cellular uptake of glucose. (d) Increases blood glucose levels by hydrolysis of glycogen.

Description : Which of the following represents the action of insulin? (a) Increases blood glucose level by stimulating glucagon production. (b) Decreases blood glucose levels by forming glycogen. (c) ... promoting cellular uptake of glucose. (d) Increases blood glucose levels by hydrolysis of glycogen.

Last Answer : (b) Decreases blood glucose levels by forming glycogen

Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation. (a) Insulin (b) Glucagon (c) Secretin (d) Gastrin

Description : Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation. (a) Insulin (b) Glucagon (c) Secretin (d) Gastrin

Last Answer : (a) Insulin

Anthelmintic action of piperazine is due to: A. Interference with ATP generation in the worm B. Blockade of glucose uptake by the worm C. Hyperpolarization of nematode muscle by GABA agonistic action D. Depolarization of nematode muscle by activating nicotinic receptors

Description : Anthelmintic action of piperazine is due to: A. Interference with ATP generation in the worm B. Blockade of glucose uptake by the worm C. Hyperpolarization of nematode muscle by GABA agonistic action D. Depolarization of nematode muscle by activating nicotinic receptors

Last Answer : C. Hyperpolarization of nematode muscle by GABA agonistic action

The most probable mechanism of action of mebendazole is: A. Depolarization of membrane and spastic paralysis of the worm B. Hyperpolarization of membrane and flaccid paralysis of the worm C. Loss of intracellular microtubules and inhibition of glucose uptake in the worm D. Tegument damage and leakage of contents of the worm

Description : The most probable mechanism of action of mebendazole is: A. Depolarization of membrane and spastic paralysis of the worm B. Hyperpolarization of membrane and flaccid paralysis of the worm C. Loss of ... inhibition of glucose uptake in the worm D. Tegument damage and leakage of contents of the worm

Last Answer : C. Loss of intracellular microtubules and inhibition of glucose uptake in the worm

Glucocorticoids impair carbohydrate tolerance by: A. Promoting gluconeogenesis in liver B. Depressing glucose uptake into skeletal muscles C. Inhibiting insulin secretion D. Both A and B are correct

Description : Glucocorticoids impair carbohydrate tolerance by: A. Promoting gluconeogenesis in liver B. Depressing glucose uptake into skeletal muscles C. Inhibiting insulin secretion D. Both A and B are correct

Last Answer : D. Both A and B are correct

Guargum limits post-prandial glycaemia by: A. Inhibiting intestinal brush border α-glucosidases B. Slowing carbohydrate absorption from intestine C. Releasing incretins from the intestine D. Promoting uptake of glucose into skeletal muscles

Description : Guargum limits post-prandial glycaemia by: A. Inhibiting intestinal brush border α-glucosidases B. Slowing carbohydrate absorption from intestine C. Releasing incretins from the intestine D. Promoting uptake of glucose into skeletal muscles

Last Answer : B. Slowing carbohydrate absorption from intestin

The high virus selectivity of acyclovir is due to: A. Its preferential uptake by virus infected cells B. Need of virus specific enzyme for its conversion to the active metabolite C. Its action on virus directed reverse transcriptase which does not occur in noninfected cells D. Both ‘A’ and ‘B’ are correct

Description : The high virus selectivity of acyclovir is due to: A. Its preferential uptake by virus infected cells B. Need of virus specific enzyme for its conversion to the active metabolite C. Its action on ... reverse transcriptase which does not occur in noninfected cells D. Both A' and B' are correct

Last Answer : D. Both ‘A’ and ‘B’ are correct

Mammalian cells are not inhibited by low concentrations of tetracyclines that inhibit sensitive microorganisms because: A. Host cells lack active transport mechanism for tetracyclines B. Host cells actively pump out tetracyclines C. Protein synthesizing apparatus of host cells has low affinity for tetracyclines D. Both ‘A’ and ‘C’ are correct

Description : Mammalian cells are not inhibited by low concentrations of tetracyclines that inhibit sensitive microorganisms because: A. Host cells lack active transport mechanism for tetracyclines B. Host cells actively pump out ... host cells has low affinity for tetracyclines D. Both A' and C' are correct

Last Answer : D. Both ‘A’ and ‘C’ are correct

Radioactive iodine uptake by thyroid gland is increased in (A) Endemic goitre (B) Hyperthyroidism (C) Myxoedema (D) Creatinism

Description : Radioactive iodine uptake by thyroid gland is increased in (A) Endemic goitre (B) Hyperthyroidism (C) Myxoedema (D) Creatinism

Last Answer : Answer : B

Radioactive iodine uptake by thyroid gland 24 hours of a test dose is (A) 1.5–15% of the test done (B) 15–20% of the test done (C) 20–40% of the test done (D) 50–70% of the test done

Description : Radioactive iodine uptake by thyroid gland 24 hours of a test dose is (A) 1.5–15% of the test done (B) 15–20% of the test done (C) 20–40% of the test done (D) 50–70% of the test done

Last Answer : Answer : C

Iodide uptake by thyroid gland is decreased by (A) Thicyanate (B) Thiouracil (C) Thiourea (D) Methimazole

Description : Iodide uptake by thyroid gland is decreased by (A) Thicyanate (B) Thiouracil (C) Thiourea (D) Methimazole

Last Answer : Answer : A

A substance which competes with iodide uptake mechanism by thyroid gland is (A) Thiocynate (B) Iodoacetate (C) Fluoride (D) Fluoroacetate

Description : A substance which competes with iodide uptake mechanism by thyroid gland is (A) Thiocynate (B) Iodoacetate (C) Fluoride (D) Fluoroacetate

Last Answer : Answer : A

Hypomagnesaemia may be caused by which of the following drugs? 1) Aminophylline 2) Cisplatin 3) Co-trimoxazole 4) Digoxin 5) Amitriptyline

Description : Hypomagnesaemia may be caused by which of the following drugs? 1) Aminophylline 2) Cisplatin 3) Co-trimoxazole 4) Digoxin 5) Amitriptyline

Last Answer : Answers-2 Thiazide diuretics (not mentioned here) are a common cause of reduced serum magnesium. Cisplatin is a well recognised cause of hypomagnesaemia.

Low uptake of 123I on the thyroid uptake scan would be an expected finding in: 1) A solitary toxic nodule 2) A multi-nodular toxic goitre 3) Amiodarone induced thyrotoxicosis type 1 4) DeQuervain's thyroiditis 5) Graves' thyrotoxicosis

Description : Low uptake of 123I on the thyroid uptake scan would be an expected finding in: 1) A solitary toxic nodule 2) A multi-nodular toxic goitre 3) Amiodarone induced thyrotoxicosis type 1 4) DeQuervain's thyroiditis 5) Graves' thyrotoxicosis

Last Answer : Answers-4 DeQuervain's thyroiditis is classically associated with low or absent 123I (the 131 radioactive isotope of iodine) uptake. The others will have high or normal uptake. In particular type ... may be distinguished from the thyroiditis of type 2 by the normal or high uptake scan.

Glycogen while being acted upon by active phosphorylase is converted first to (A) Glucose (B) Glucose 1-phosphate and Glycogen with 1 carbon less (C) Glucose-6-phosphate and Glycogen with 1 carbon less (D) 6-Phosphogluconic acid

Description : Glycogen while being acted upon by active phosphorylase is converted first to (A) Glucose (B) Glucose 1-phosphate and Glycogen with 1 carbon less (C) Glucose-6-phosphate and Glycogen with 1 carbon less (D) 6-Phosphogluconic acid

Last Answer : C

In the glycogen synthesis, which is the active glucose derivative?

Description : In the glycogen synthesis, which is the active glucose derivative?

Last Answer : UDP-glucose.

The binding of prokaryotic DNA dependent RNA polymerase to promoter sits of genes is inhibited by the antibiotic: (A) Streptomycin (B) Rifamcin (C) Aueromycin (D) Puromycin

Description : The binding of prokaryotic DNA dependent RNA polymerase to promoter sits of genes is inhibited by the antibiotic: (A) Streptomycin (B) Rifamcin (C) Aueromycin (D) Puromycin

Last Answer : Answer : B

Cancer cells may become resistant to amethopterin by (A) Developing mechanisms to destroy amethopterin (B) Amplification of dihydrofolate reducatse gene (C) Mutation in the dihydrofolate reductase gene so that the enzyme is no longer inhibited by amethopterin (D) Developing alternate pathway of thymidylate synthesis

Description : Cancer cells may become resistant to amethopterin by (A) Developing mechanisms to destroy amethopterin (B) Amplification of dihydrofolate reducatse gene (C) Mutation in the dihydrofolate reductase ... is no longer inhibited by amethopterin (D) Developing alternate pathway of thymidylate synthesis

Last Answer : Answer : B

Mitochondrial protein synthesis is inhibited by (A) Cycloheximide (B) Chloramphenicol (C) Diptheria toxin (D) None of these

Description : Mitochondrial protein synthesis is inhibited by (A) Cycloheximide (B) Chloramphenicol (C) Diptheria toxin (D) None of these

Last Answer : Answer : B

The regulatory i gene of lac operon (A) Is inhibited by lacotse (B) Is inhibited by its own product, the repressor protein (C) Forms a regulatory protein which increases the expression of downstream structural genes (D) Is constitutively expressed

Description : The regulatory i gene of lac operon (A) Is inhibited by lacotse (B) Is inhibited by its own product, the repressor protein (C) Forms a regulatory protein which increases the expression of downstream structural genes (D) Is constitutively expressed

Last Answer : Answer : D

Peptidyl transferase activity of 50 S ribosomal subunits is inhibited by (A) Rifampicin (B) Cycloheximide (C) Chloramphenicol (D) Erythromycin

Description : Peptidyl transferase activity of 50 S ribosomal subunits is inhibited by (A) Rifampicin (B) Cycloheximide (C) Chloramphenicol (D) Erythromycin

Last Answer : Answer : C

Binding of formylmehtionyl tRNA to 30 S ribosomal subunit of prokaryotes is inhibited by (A) Streptomycin (B) Chloramphenicol (C) Erythromycin (D) Mitomycin

Description : Binding of formylmehtionyl tRNA to 30 S ribosomal subunit of prokaryotes is inhibited by (A) Streptomycin (B) Chloramphenicol (C) Erythromycin (D) Mitomycin

Last Answer : Answer : A

Aspartate transcarbamoylase is inhibited by (A) CTP (B) PRPP (C) ATP (D) TMP

Description : Aspartate transcarbamoylase is inhibited by (A) CTP (B) PRPP (C) ATP (D) TMP

Last Answer : Answer : A

Cytosolic carbamoyl phosphate synthetase is inhibited by (A) UTP (B) CTP (C) PRPP (D) TMP

Description : Cytosolic carbamoyl phosphate synthetase is inhibited by (A) UTP (B) CTP (C) PRPP (D) TMP

Last Answer : Answer : A

All of the following statements about thioredoxin reductase are true except: (A) It requires NADH as a coenzyme (B) Its substrates are ADP, GDP, CDP and UDP (C) It is activated by ATP (D) It is inhibited by dADP

Description : All of the following statements about thioredoxin reductase are true except: (A) It requires NADH as a coenzyme (B) Its substrates are ADP, GDP, CDP and UDP (C) It is activated by ATP (D) It is inhibited by dADP

Last Answer : Answer : A

PRPP synthetase is allosterically inhibited by (A) AMP (B) ADP (C) GMP (D) All of these

Description : PRPP synthetase is allosterically inhibited by (A) AMP (B) ADP (C) GMP (D) All of these

Last Answer : Answer : D

The binding of prokaryotic DNA dependent RNA polymerase to promoter sites of genes is inhibited by the antibiotic: (A) Puromycin (B) Rifamycin (C) Terramycin (D) Streptomycin

Description : The binding of prokaryotic DNA dependent RNA polymerase to promoter sites of genes is inhibited by the antibiotic: (A) Puromycin (B) Rifamycin (C) Terramycin (D) Streptomycin

Last Answer : Answer : B

The enzyme aspartate transcarbamoylase of pyrimidine biosynthesis is inhibited by (A) ATP (B) ADP (C) AMP (D) CTP

Description : The enzyme aspartate transcarbamoylase of pyrimidine biosynthesis is inhibited by (A) ATP (B) ADP (C) AMP (D) CTP

Last Answer : Answer : D

Purine biosynthesis is inhibited by (A) Aminopterin (B) Tetracyclin (C) Methotrexate (D) Chloramphenicol

Description : Purine biosynthesis is inhibited by (A) Aminopterin (B) Tetracyclin (C) Methotrexate (D) Chloramphenicol

Last Answer : Answer : A

Conversion of formylglycinamide ribosyl5-phosphate to formyl-glycinamide ribosyl-5-phosphate is inhibited by (A) Azaserine (B) Diazonorleucine (C) 6-Mercaptopurine (D) Mycophenolic acid

Description : Conversion of formylglycinamide ribosyl5-phosphate to formyl-glycinamide ribosyl-5-phosphate is inhibited by (A) Azaserine (B) Diazonorleucine (C) 6-Mercaptopurine (D) Mycophenolic acid

Last Answer : Answer : A