Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either hypotonic or hypertonic urine according to the

Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either hypotonic or hypertonic urine according to the
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Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either ... D. If both Assertion and Reason are false
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If a bathing fluid has the same osmotic pressure than the cell it called a. Isotonic b. Hypertonic c. hypotonic d. all

Description : If a bathing fluid has the same osmotic pressure than the cell it called a. Isotonic b. Hypertonic c. hypotonic d. all

Last Answer : Isotonic

If a bathing fluid has higher osmotic pressure than the cell it is called a. Isotonic b. hypotonic c. hypertonic d. all

Description : If a bathing fluid has higher osmotic pressure than the cell it is called a. Isotonic b. hypotonic c. hypertonic d. all

Last Answer : hypertonic

If a bathing fluid has a lower osmotic pressure than the cell, it is called a. Isotonic b. hypotonic c. hypertonic d. All

Description : If a bathing fluid has a lower osmotic pressure than the cell, it is called a. Isotonic b. hypotonic c. hypertonic d. All

Last Answer : hypotonic

Human urine as compared to human blood is (a) hypotonic (b) hypertonic (c) isotonic (d) all of these

Description : Human urine as compared to human blood is (a) hypotonic (b) hypertonic (c) isotonic (d) all of these

Last Answer : Ans:(b)

Which is false regarding freshwater fish? a) their blood is hypertonic to their environment b) they often actively take up salt c) they excrete urine hypotonic to the blood d) their gills actively excrete salts

Description : Which is false regarding freshwater fish? a) their blood is hypertonic to their environment b) they often actively take up salt c) they excrete urine hypotonic to the blood d) their gills actively excrete salts

Last Answer : ANSWER: D -- THEIR GILLS ACTIVELY EXCRETE SALTS

From the biological viewpoint, solutions can be grouped into (A) Isotonic solution (B) Hypotonic solutions (C) Hypertonic solution (D) All of these

Description : From the biological viewpoint, solutions can be grouped into (A) Isotonic solution (B) Hypotonic solutions (C) Hypertonic solution (D) All of these

Last Answer : D

The fluid reaching the distal convoluted tubule from the ascending limb of Henle's loop is (a) isotonic in respect of plasma (b) hypotonic in respect of plasma (c) hypertonic in respect of plasma (d) variable

Description : The fluid reaching the distal convoluted tubule from the ascending limb of Henle's loop is (a) isotonic in respect of plasma (b) hypotonic in respect of plasma (c) hypertonic in respect of plasma (d) variable

Last Answer : Ans:(a)

A cell increases in volume when it is placed in - (1) Hypertonic solution (2) Hypotonic solution (3) Isotonic solution (4) None of these

Description : A cell increases in volume when it is placed in - (1) Hypertonic solution (2) Hypotonic solution (3) Isotonic solution (4) None of these

Last Answer : (2) Hypotonic solution Explanation: When a cell is placed in a hypotonic solution, water rushes into the membrane, increasing the cell's volume. Eventually, the cell's membrane is enlarged such that it pushes against the cell's rigid wall. At this point the cell is said to be turgid.

The plant cell will shrink when placed in (1) An isotonic solution (2) Hypertonic solution (3) Hypotonic solution (4) Water

Description : The plant cell will shrink when placed in (1) An isotonic solution (2) Hypertonic solution (3) Hypotonic solution (4) Water

Last Answer : (2) Hypertonic solution Explanation: If a plant cell is placed in a hypertonic solution, the plant cell loses water and hence turgor pressure by plasmolysis: pressure decreases to the point where ... leaving gaps between the cell wall and the membrane and making the plant cell shrink and crumple.

Swelling/bursting of red cell occurs in a. Isotonic solution b. hypotonic solution c. hypertonic solution d. all

Description : Swelling/bursting of red cell occurs in a. Isotonic solution b. hypotonic solution c. hypertonic solution d. all

Last Answer : hypotonic solution

Crenation of Red cell occur, in a. Isotonic solution b. hypertonic solution c. hypotonic solution d. all

Description : Crenation of Red cell occur, in a. Isotonic solution b. hypertonic solution c. hypotonic solution d. all

Last Answer : hypertonic solution

Which of the following solutions is hypotonic? a) 0.45% NaCl. Half-strength saline is hypotonic b) Lactated Ringer’s solution. Lactated Ringer’s is isotonic. c) 0.9% NaCl. Normal saline (0.9% NaCl) is isotonic. d) 5% NaCl. A solution that is 5% NaCl is hypertonic.

Description : Which of the following solutions is hypotonic? a) 0.45% NaCl. Half-strength saline is hypotonic b) Lactated Ringer’s solution. Lactated Ringer’s is isotonic. c) 0.9% NaCl. Normal saline (0.9% NaCl) is isotonic. d) 5% NaCl. A solution that is 5% NaCl is hypertonic.

Last Answer : a) 0.45% NaCl. Half-strength saline is hypotonic

In osmosis the flow of SOLVENT moves in what direction of tonicity? a) isotonic to hypotonic b) hypotonic to hypertonic c) hypertonic to isotonic d) hypertonic to hypotonic

Description : In osmosis the flow of SOLVENT moves in what direction of tonicity? a) isotonic to hypotonic b) hypotonic to hypertonic c) hypertonic to isotonic d) hypertonic to hypotonic

Last Answer : ANSWER: B -- HYPOTONIC TO HYPERTONIC 

A cell increases in volume when it is placed in (1) Hypertonic solution (2) Hypotonic solution (3) Isotonic solution (4) None of these

Description : A cell increases in volume when it is placed in (1) Hypertonic solution (2) Hypotonic solution (3) Isotonic solution (4) None of these

Last Answer : Hypotonic solution 

Assertion `:-` Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. Reason `:-` Counter current mechanism

Description : Assertion `:-` Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. Reason `:-` Counter current mechanism

Last Answer : Assertion `:-` Human kidneys can produce urine nearly four times concentrated than the initial filtrate ... D. If both Assertion & Reason are false.

The final concentration of the fluid to produce a markedly hypertonic urine takes place in (a) Loop of Henle (b) Distal convoluted tubule (c) Collecting tubule (d) Both (b) and (c)

Description : The final concentration of the fluid to produce a markedly hypertonic urine takes place in (a) Loop of Henle (b) Distal convoluted tubule (c) Collecting tubule (d) Both (b) and (c)

Last Answer : Ans:(c)

Assertion: In acute constipation, purgative containing magnesium salts are generally used. Reason: The osmotic effect of `Mg^(2+)` in the intestinal l

Description : Assertion: In acute constipation, purgative containing magnesium salts are generally used. Reason: The osmotic effect of `Mg^(2+)` in the intestinal l

Last Answer : Assertion: In acute constipation, purgative containing magnesium salts are generally used. Reason: The osmotic ... `Mg^(2+)` is absorbed very slowly

The haemodialyzer has semi-permeable lining of tubes which help to: (a) To maintain osmotic pressure of blood. (b) To filter nitrogenous wastes from the dialyzing solution. (c) In passing the waste product, in the dialyzing solution. (d) To pump purified blood back into the body of the patient.

Description : The haemodialyzer has semi-permeable lining of tubes which help to: (a) To maintain osmotic pressure of blood. (b) To filter nitrogenous wastes from the dialyzing solution. (c) In passing the waste product, in the dialyzing solution. (d) To pump purified blood back into the body of the patient.

Last Answer : (c) In passing the waste product, in the dialyzing solution.

ADH (A) Reabsorbs water from renal tubules (B) Excretes water from renal tubules (C) Excretes hypotonic urine (D) Causes low specific gravity of urine 210 MCQs IN BIOCHEMISTRY

Description : ADH (A) Reabsorbs water from renal tubules (B) Excretes water from renal tubules (C) Excretes hypotonic urine (D) Causes low specific gravity of urine 210 MCQs IN BIOCHEMISTRY

Last Answer : Answer : A

Consider the following water conservation mechanisms: (a) Nasal countercurrent mechanism (b) Dependence on metabolic water (c) Highly hypertonic urine

Description : Consider the following water conservation mechanisms: (a) Nasal countercurrent mechanism (b) Dependence on metabolic water (c) Highly hypertonic urine

Last Answer : Consider the following water conservation mechanisms: (a) Nasal countercurrent mechanism (b) Dependence on metabolic water ... (a), (c) and (d) only

Assertion: Kidneys of the vertebrates are retroperitoneal and extracoelomic. Reason: The structural and functional units of the kidneys are nephrons.

Description : Assertion: Kidneys of the vertebrates are retroperitoneal and extracoelomic. Reason: The structural and functional units of the kidneys are nephrons.

Last Answer : Assertion: Kidneys of the vertebrates are retroperitoneal and extracoelomic. Reason: The structural and ... . If both Assertion and Reason are false

Assertion: Kidneys are retroperitoneal in position. Reason: Kidneys are covered with peritoneum only on ventral surface.

Description : Assertion: Kidneys are retroperitoneal in position. Reason: Kidneys are covered with peritoneum only on ventral surface.

Last Answer : Assertion: Kidneys are retroperitoneal in position. Reason: Kidneys are covered with peritoneum only on ... D. If both Assertion and Reason are false

Why does the process of the vacuole work to maintain osmotic equilibrium?

Description : Why does the process of the vacuole work to maintain osmotic equilibrium?

Last Answer : Do your homework by reading your textbook. And if you’re in the middle of an exam, shame on you.

Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a unit of fluid. Osmolality refers to the number of dissolved particles contained in a unit of fluid. c) the excretion of substances such as glucose through increased urine output. Osmotic diuresis occurs when the urine output increases due to excretion of substances such as glucose. d) the amount of pressure needed to stop flow of water by osmosis. Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Description : Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a ... . Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Last Answer : a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin.

Assertion. Corpus luteum is produced by Graafian follicle after ovulation Reason. It secretes estrogen which is necessory to maintain pregnancy.

Description : Assertion. Corpus luteum is produced by Graafian follicle after ovulation Reason. It secretes estrogen which is necessory to maintain pregnancy.

Last Answer : Assertion. Corpus luteum is produced by Graafian follicle after ovulation Reason. It secretes estrogen which is necessory to ... A. A B. B C. C D. D

Assertion: Some orgainsms can maintain internal homeostasis by means of physiological processes and are called "regulates." Reason: Regulates can main

Description : Assertion: Some orgainsms can maintain internal homeostasis by means of physiological processes and are called "regulates." Reason: Regulates can main

Last Answer : Assertion: Some orgainsms can maintain internal homeostasis by means of physiological processes and are called " ... Reason are false, then mark (4).

Can solutions with same concentration of different solutes have different osmotic pressures ?

Description : Can solutions with same concentration of different solutes have different osmotic pressures ?

Last Answer : The osmotic pressure of a solution does not depend on the nature of the solute, it depends only on the quantity of molecules (particles) in relation to the total solution volume. ... osmotic pressure depends only on its total particle concentration regardless the nature of the solutes.

Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial attack (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out (4) None of these

Description : Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial ... state in a solution of high osmotic strength as water is drawn out (4) None of these

Last Answer : (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out Explanation: The reason why bacteria does not grow in high concentration of sugar ... measure of unbound, free water molecules in the food that is necessary for microbial survival and growth.

Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial attack (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out (4) None of these

Description : Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial ... state in a solution of high osmotic strength as water is drawn out (4) None of these

Last Answer : Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out

Assertion `:-` Analysis of urine helps in clinical diagnosis of many metabolic disorder. ltbr. Reason `:-` Glycosuria is indicative of disabetes insip

Description : Assertion `:-` Analysis of urine helps in clinical diagnosis of many metabolic disorder. ltbr. Reason `:-` Glycosuria is indicative of disabetes insip

Last Answer : Assertion `:-` Analysis of urine helps in clinical diagnosis of many metabolic disorder. ltbr. Reason `: ... D. If both Assertion & Reason are false.

Assertion : In male , urethra is considered as urinogenital duct . Reason : Urethra carries both urine and semen in males .

Description : Assertion : In male , urethra is considered as urinogenital duct . Reason : Urethra carries both urine and semen in males .

Last Answer : Assertion : In male , urethra is considered as urinogenital duct . Reason : Urethra carries both urine ... D. If both Assertion & Reason are False.

Assertion : The failure of secretion of hormone vasopressin causes diabetes mellitus in the patient. Reason : Vasopression reduces the volume of urine

Description : Assertion : The failure of secretion of hormone vasopressin causes diabetes mellitus in the patient. Reason : Vasopression reduces the volume of urine

Last Answer : Assertion : The failure of secretion of hormone vasopressin causes diabetes mellitus in the patient. ... . If both Assertion and Reason are false.

Assertion : Vasopression is also called as antidiuretic hormone. Reason : Vasopressin reduces the loss of water in urine by increasing water reabsorbt

Description : Assertion : Vasopression is also called as antidiuretic hormone. Reason : Vasopressin reduces the loss of water in urine by increasing water reabsorbt

Last Answer : Assertion : Vasopression is also called as antidiuretic hormone. Reason : Vasopressin reduces the loss ... . If both Assertion and Reason are false.

Assertion: ADH reduces chloride loss in Urine. Reason: ADH decreases water absorption.

Description : Assertion: ADH reduces chloride loss in Urine. Reason: ADH decreases water absorption.

Last Answer : Assertion: ADH reduces chloride loss in Urine. Reason: ADH decreases water absorption. A. If both ... false D. If both Assertion and Reason are false

Assertion: During micturition, urine is prevented from flowing back into the ureters. Reason: Urethral sphincters contract during micturition

Description : Assertion: During micturition, urine is prevented from flowing back into the ureters. Reason: Urethral sphincters contract during micturition

Last Answer : Assertion: During micturition, urine is prevented from flowing back into the ureters. Reason: Urethral ... D. If both Assertion and Reason are false

Assertion: Pregnant women may show some presence of glucose in their postprandial urine although they have no diabetes. Reason: In pregnant women the

Description : Assertion: Pregnant women may show some presence of glucose in their postprandial urine although they have no diabetes. Reason: In pregnant women the

Last Answer : Assertion: Pregnant women may show some presence of glucose in their postprandial urine although they ... D. If both Assertion and Reason are false

All of the following statements about uric acid are true except (A) It can be formed from allantoin (B) Formation of uric acid stones in kidneys can be decreased by alkalinisation of urine (C) Uric acid begins to dissociate at pH above 5.8 (D) It is present in plasma mainly as monosodium urate

Description : All of the following statements about uric acid are true except (A) It can be formed from allantoin (B) Formation of uric acid stones in kidneys can be decreased by alkalinisation of urine (C) Uric acid begins to dissociate at pH above 5.8 (D) It is present in plasma mainly as monosodium urate

Last Answer : Answer : A

All the following statements regarding ketone bodies are true except (A) They may result from starvation (B) They are formed in kidneys (C) They include acetoacetic acid and acetone (D) They may be excreted in urine

Description : All the following statements regarding ketone bodies are true except (A) They may result from starvation (B) They are formed in kidneys (C) They include acetoacetic acid and acetone (D) They may be excreted in urine

Last Answer : Answer : B

In the genetic disorder of cystinuria, the patient excretes large quantities of cystine in their urine and its low solubility causes crystalline cystine to precipitate as stones in kidneys. The remedy involves ingesting Na HCO3. Reaction of this treatment is (A) NaHCO2 combines with cystine (B) NaHCO3 raises the pH above the isoelectric point of cystine (C) NaHCO3 prevents stone formation by hydrolysis of cystine to cysteine (D) None of these

Description : In the genetic disorder of cystinuria, the patient excretes large quantities of cystine in their urine and its low solubility causes crystalline cystine to precipitate as stones in kidneys. The remedy ... C) NaHCO3 prevents stone formation by hydrolysis of cystine to cysteine (D) None of these

Last Answer : Answer : C

Which of the following factors is responsible for the formation of concentrated urine? (a) Hydrostatic pressure during glomerular filtration. (b) Low levels of antidiuretic hormone. (c) Maintaining hyperosmolarity towards the medullary interstitium in the kidneys. (d) Secretion of erythropoietin by Juxtaglomerular complex.

Description : Which of the following factors is responsible for the formation of concentrated urine? (a) Hydrostatic pressure during glomerular filtration. (b) Low levels of antidiuretic hormone. (c) ... the medullary interstitium in the kidneys. (d) Secretion of erythropoietin by Juxtaglomerular complex.

Last Answer : (c) Maintaining hyperosmolarity towards the medullary interstitium in the kidneys.

When fluid intake is normal, the specific gravity of urine should be a) 1.010-1.025. Urine specific gravity is a measurement of the kidney’s ability to concentrate urine.

Description : When fluid intake is normal, the specific gravity of urine should be a) 1.010-1.025. Urine specific gravity is a measurement of the kidney's ability to concentrate urine. b) 1.000. The ... intake. d) greater than 1.025. A urine specific gravity greater than 1.025 may indicate overhydration.

Last Answer : a) 1.010-1.025. Urine specific gravity is a measurement of the kidney’s ability to concentrate urine.

If a red blood cell is placed in a hypotonic solution, it: a) swells b) shrinks c) crenates d) remains the same

Description : If a red blood cell is placed in a hypotonic solution, it: a) swells b) shrinks c) crenates d) remains the same

Last Answer : ANSWER: A -- SWELLS

Essential amino acids have been advocated as standard therapy for renal failure. Which of the following statements are true? A. Increased survival from acute renal failure has been reported with both essential and nonessential amino acid therapy of patients in renal failure. B. Essential amino acids retard the rise of blood urea nitrogen (BUN) secondary to decreased urea appearance. C. Essential amino acids and hypertonic dextrose are a convenient form of therapy for hyperkalemia. D. Essential amino acids decrease BUN and creatinine to the same degree as solutions containing excessive nonessential amino acids.

Description : Essential amino acids have been advocated as standard therapy for renal failure. Which of the following statements are true? A. Increased survival from acute renal failure has been reported ... BUN and creatinine to the same degree as solutions containing excessive nonessential amino acids.

Last Answer : Answer: BC DISCUSSION: Essential amino acids and hypertonic dextrose, as opposed to hypertonic dextrose alone, was reported by Abel and co-workers to be associated with a decreased mortality rate ... renal failure have not been carried out in sufficient numbers to yield answers to this question

All of the following statements about hemorrhagic shock are true except: A. Following hemorrhagic shock, there is an initial interstitial fluid volume contraction. B. Dopamine, or a similar inotropic agent, should be given immediately for resuscitation from hemorrhagic shock, to increase cardiac output and improve oxygen delivery to hypoperfused tissues. C. The use of colloid solutions or hypertonic saline solutions is contraindicated for treatment of hemorrhagic shock. D. In hemorrhagic shock, a narrowed pulse pressure is commonly seen before a fall in systolic blood pressure.

Description : All of the following statements about hemorrhagic shock are true except: A. Following hemorrhagic shock, there is an initial interstitial fluid volume contraction. B. Dopamine, or a similar inotropic ... shock, a narrowed pulse pressure is commonly seen before a fall in systolic blood pressure.

Last Answer : Answer: BC DISCUSSION: Hemorrhagic shock is associated with a contraction of the interstitial fluid compartment because of precapillary vasoconstriction and reabsorption of interstitial fluid ... definitive evidence that such solutions are better than standard crystalloid solutions is lacking

Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more affinity with Haemoglobin as compares to oxyg

Description : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more affinity with Haemoglobin as compares to oxyg

Last Answer : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more ... D. If both Assertion & Reason are false.

Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t

Description : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t

Last Answer : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 ... true but reason is wrong D. Both are wrong

Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s

Description : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s

Last Answer : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration ` ... If both Assertion & Reason are False.

Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High concentration of progesterone is present in proliferati

Description : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High concentration of progesterone is present in proliferati

Last Answer : Assertion : Corpus luteum is present in proliferative phase of menstrual cycle . Reason : High ... . If both Assertion & Reason are False.

Assertion:- All the organelles of eukaryotic cells are surrounded by either single or double membrane. Reason:- In eukaryotic cell none of cell organe

Description : Assertion:- All the organelles of eukaryotic cells are surrounded by either single or double membrane. Reason:- In eukaryotic cell none of cell organe

Last Answer : Assertion:- All the organelles of eukaryotic cells are surrounded by either single or double membrane. ... D. If both Assertion & Reason are false.

Assertion : All muscle follow " all or none" principle. Reason : All muscles contract either fully or do not contract at all depending upon the thresh

Description : Assertion : All muscle follow " all or none" principle. Reason : All muscles contract either fully or do not contract at all depending upon the thresh

Last Answer : Assertion : All muscle follow " all or none" principle. Reason : All muscles contract either fully or ... . D. If both Assertion and Reason are false.