Water potential and osmotic potential of pure water are

Water potential and osmotic potential of pure water are
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Water potential and osmotic potential of pure water are A. Zero and zero B. 100 and zero C. 100 and 100 D. zero and 100
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The water potential and osmotic potential of pure water are (a) 100 and 200 (b) zero and 100 (c) 100 and zero (d) zero and zero.

Description : The water potential and osmotic potential of pure water are (a) 100 and 200 (b) zero and 100 (c) 100 and zero (d) zero and zero.

Last Answer : (d) zero and zero.

Which of the following properties is lower for a solution than for the pure solvent? w) osmotic pressure x) vapor pressure y) temperature z) boiling point

Description : Which of the following properties is lower for a solution than for the pure solvent? w) osmotic pressure x) vapor pressure y) temperature z) boiling point

Last Answer : ANSWER: X -- VAPOR PRESSURE

Potometer works on the principle of (a) osmotic pressure (b) amount of water absorbed equals the amount transpired (c) root pressure (d) potential difference between the tip of the tube and that of the plant.

Description : Potometer works on the principle of (a) osmotic pressure (b) amount of water absorbed equals the amount transpired (c) root pressure (d) potential difference between the tip of the tube and that of the plant.

Last Answer : (b) amount of water absorbed equals the amount transpired

When a cell is fully turgid, which of the following will be zero? (a) Turgor pressure (b) Water potential (c) Wall pressure (d) Osmotic pressure

Description : When a cell is fully turgid, which of the following will be zero? (a) Turgor pressure (b) Water potential (c) Wall pressure (d) Osmotic pressure

Last Answer : (b) Water potential

In plant-water relationships, symbol ‘YW’ is used to represent (1) Osmotic pressure (2) Water potential (3) Solute potential (4) Osmosis

Description : In plant-water relationships, symbol ‘YW’ is used to represent (1) Osmotic pressure (2) Water potential (3) Solute potential (4) Osmosis

Last Answer : Water potential

Differentiate between Osmotic Pressure and Osmotic Potential. -Biology

Description : Differentiate between Osmotic Pressure and Osmotic Potential. -Biology

Last Answer : answer:

Root pressure develops due to (a) passive absorption (b) active absorption (c) increase in transpiration (d) low osmotic potential in soil.

Description : Root pressure develops due to (a) passive absorption (b) active absorption (c) increase in transpiration (d) low osmotic potential in soil.

Last Answer : (b) active absorption

Why pure water has the maximum water potential? -Biology

Description : Why pure water has the maximum water potential? -Biology

Last Answer : answer:

What is the water potential of pure water? -Biology

Description : What is the water potential of pure water? -Biology

Last Answer : answer:

The water potential of pure water is (a) less than zero (b) more than zero but less than one (c) more than one (d) zero.

Description : The water potential of pure water is (a) less than zero (b) more than zero but less than one (c) more than one (d) zero.

Last Answer : (d) zero.

The water potential of pure water is : (1) Less than zero (2) More than zero but less than one (3) More than one (4) Zero

Description : The water potential of pure water is : (1) Less than zero (2) More than zero but less than one (3) More than one (4) Zero

Last Answer : (4) Zero

The chemical potential for a pure substance is __________ its partial molal free energy. (A) More than (B) Less than (C) Equal to (D) Not related to

Description : The chemical potential for a pure substance is __________ its partial molal free energy. (A) More than (B) Less than (C) Equal to (D) Not related to

Last Answer : (C) Equal to

Gibbs free energy per mole for a pure substance is equal to the (A) Latent heat of vaporisation (B) Chemical potential (C) Molal boiling point (D) Heat capacity

Description : Gibbs free energy per mole for a pure substance is equal to the (A) Latent heat of vaporisation (B) Chemical potential (C) Molal boiling point (D) Heat capacity

Last Answer : (B) Chemical potential

Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is (A) 0 (B) 1 (C) ∞ (D) None of these

Description : Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance ... temperature and pressure is (A) 0 (B) 1 (C) ∞ (D) None of these

Last Answer : (B) 1

At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is (A) Zero (B) One (C) Infinity (D) Negative

Description : At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is (A) Zero (B) One (C) Infinity (D) Negative

Last Answer : (B) One

The osmotic theory of active water absorption was first given by

Description : The osmotic theory of active water absorption was first given by

Last Answer : The osmotic theory of active water absorption was first given by A. Kramer(1941) B. Eaton (1943) C. Atkins (1916 ) D. Priestley (1923)

Osmotic expansion of a cell kept in water is chiefly regulated by

Description : Osmotic expansion of a cell kept in water is chiefly regulated by

Last Answer : Osmotic expansion of a cell kept in water is chiefly regulated by A. Mitochondria B. Vacuoles C. Plastids D. Ribosomes

Colloid osmotic pressure of intracellular fluid is (A) Equal to that of plasma (B) More than that of plasma (C) More than that of plasma (D) Nearly zero WATER AND ELECTROLYTE BALANCE 285

Description : Colloid osmotic pressure of intracellular fluid is (A) Equal to that of plasma (B) More than that of plasma (C) More than that of plasma (D) Nearly zero WATER AND ELECTROLYTE BALANCE 285

Last Answer : Answer : B

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.

Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Description : Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Last Answer : (2) Capillary pressure Explanation: In plants, the transpiration stream is the uninterrupted stream of water, and other, which is taken up by the roots and, via the xylem vessels, ... the difference in water potential between the soil and the substomatal cavity caused by transpiration.

Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure deficit 5 atm. The result will be (a) no movement of water(b) equilibrium between the two (c) movement of water from cell A to B (d) movement of water from cell B to A.

Description : Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure ... two (c) movement of water from cell A to B (d) movement of water from cell B to A.

Last Answer : (c) movement of water from cell A to B

The osmotic expansion of a cell kept in water is chiefly regulated by (a) mitochondria (b) vacuoles (c) plastids (d) ribosomes.

Description : The osmotic expansion of a cell kept in water is chiefly regulated by (a) mitochondria (b) vacuoles (c) plastids (d) ribosomes.

Last Answer : (b) vacuoles

Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the (A) Osmotic pressure of the soil water becomes less than that of the plant sap (B) Soil becomes too alkaline (C) Osmotic pressure of the soil water becomes higher than that of the plant sap (D) Soil becomes too acidic

Description : Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the (A) Osmotic pressure of the soil water becomes less than that of the plant sap (B) Soil ... pressure of the soil water becomes higher than that of the plant sap (D) Soil becomes too acidic

Last Answer : (C) Osmotic pressure of the soil water becomes higher than that of the plant sa

An osmotic diuretic, such as Mannitol, is given to the patient with increased intracranial pressure (IICP) in order to a) dehydrate the brain and reduce cerebral edema. Osmotic diuretics draw water across intact membranes, thereby reducing the volume of brain and extracellular fluid.

Description : An osmotic diuretic, such as Mannitol, is given to the patient with increased intracranial pressure (IICP) in order to a) dehydrate the brain and reduce cerebral edema. Osmotic diuretics ... Medications such as barbiturates are given to the patient with IICP to reduce cellular metabolic demands.

Last Answer : a) dehydrate the brain and reduce cerebral edema. Osmotic diuretics draw water across intact membranes, thereby reducing the volume of brain and extracellular fluid.

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.

Choose the correct statement about osmotic diuretics: A. They are large molecular weight substances which form colloidal solution B. Their primary site of action is collecting ducts in the kidney C. They increase water excretion without increasing salt excretion D. They can lower intraocular pressure

Description : Choose the correct statement about osmotic diuretics: A. They are large molecular weight substances which form colloidal solution B. Their primary site of action is collecting ducts in the ... C. They increase water excretion without increasing salt excretion D. They can lower intraocular pressure

Last Answer : D. They can lower intraocular pressure

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

Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Description : Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Last Answer : Capillary pressure

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.

What is osmotic stress ?

Description : What is osmotic stress ?

Last Answer : At the same time when a metal or hydrogen is placed in their own ion solution, the tendency of metal or hydrogen gas to dissolve is hindered by an inverse pressure. This inverse pressure of the solution is called osmotic pressure of the solution.

Osmotic pressure is maintained by blood colloid

Description : Osmotic pressure is maintained by blood colloid

Last Answer : Osmotic pressure is maintained by blood colloid A. Albumin B. Globulin C. Fibrinogen D. Thrombin

Blood colloidal osmotic pressure mainly maintained by which plasma protein `:-`

Description : Blood colloidal osmotic pressure mainly maintained by which plasma protein `:-`

Last Answer : Blood colloidal osmotic pressure mainly maintained by which plasma protein `:-` A. Globulin B. Albumin C. Fibrinogen D. Prothombin

$ those subtances which reduce the rate of transpiration are called transpirants. ! Imbibition causes Osmotic pressure.

Description : $ those subtances which reduce the rate of transpiration are called transpirants. ! Imbibition causes Osmotic pressure.

Last Answer : $ those subtances which reduce the rate of transpiration are called transpirants. ! Imbibition causes Osmotic ... D. If both As and R are wrong.

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

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

Last Answer : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either ... D. If both Assertion and Reason are false

The animals which do not actively control the osmotic condition of their body fluids are

Description : The animals which do not actively control the osmotic condition of their body fluids are

Last Answer : The animals which do not actively control the osmotic condition of their body fluids are A ... B. Osmoregulators C. Hyperosmotic D. Hypertonic

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

What type of osmotic environment was present to bring about the abscisic acid trigger?

Description : What type of osmotic environment was present to bring about the abscisic acid trigger?

Last Answer : Need answer

Osmotic diuresis?

Description : Osmotic diuresis?

Last Answer : DefinitionOsmotic diuresis is increased urination due to the presence of certain substances in the fluid filtered by the kidneys. (This fluid eventually becomes urine.)Causes, incidence, and risk factorsHigh blood sugar (glucose) can cause osmotic diuresis, as can medications such as Mannitol.

Osmotic fragility?

Description : Osmotic fragility?

Last Answer : DefinitionOsmotic fragility is a test to detect whether red blood cells are more likely to break down.How the test is performedBlood is typically drawn from a vein, usually from the inside of the elbow ... bleeding.In infants or young children, a sharp tool called a lancet may be used to punctur

Contribution of albumin to colloid osmotic pressure of plasma is about (A) 10% (B) 50% (C) 80% (D) 90%

Description : Contribution of albumin to colloid osmotic pressure of plasma is about (A) 10% (B) 50% (C) 80% (D) 90%

Last Answer : Answer : C

Osmotic pressure of plasma is (A) 80–100 milliosmole/litre (B) 180–200 milliosmole/litre (C) 280–300 milliosmole/litre (D) 380–400 milliosmole/litre

Description : Osmotic pressure of plasma is (A) 80–100 milliosmole/litre (B) 180–200 milliosmole/litre (C) 280–300 milliosmole/litre (D) 380–400 milliosmole/litre

Last Answer : Answer : C

The Tm for PAH i.e the maximal secretory capacity of the tubule for PAH can be used to gavge the (A) Extent of tubular damage FATS AND FATTY ACID METABOLISM 81 (B) Impairment of the capacity of the tubule to perform osmotic work (C) Impairment of renal plasma flow (D) Glomerular filtration rate

Description : The Tm for PAH i.e the maximal secretory capacity of the tubule for PAH can be used to gavge the (A) Extent of tubular damage FATS AND FATTY ACID METABOLISM 81 (B) Impairment of the capacity of the tubule to perform osmotic work (C) Impairment of renal plasma flow (D) Glomerular filtration rate

Last Answer : Answer : A

Addis test is the measure of (A) Impairment of the capacity of the tubule to perform osmotic work (B) Secretory function of liver (C) Excretory function of liver (D) Activity of parenchymal cells of liver

Description : Addis test is the measure of (A) Impairment of the capacity of the tubule to perform osmotic work (B) Secretory function of liver (C) Excretory function of liver (D) Activity of parenchymal cells of liver

Last Answer : A

An early feature of renal disease is (A) Impairment of the capacity of the tubule to perform osmotic work (B) Decrease in maximal tubular excretory capacity (C) Decrease in filtration factor (D) Decrease in renal plasma flow

Description : An early feature of renal disease is (A) Impairment of the capacity of the tubule to perform osmotic work (B) Decrease in maximal tubular excretory capacity (C) Decrease in filtration factor (D) Decrease in renal plasma flow

Last Answer : A

The oral absorption of following osmotic diuretic is negligible (a) Glycerin (b) Mannitol (c) Isosorbide (d) All of the above

Description : The oral absorption of following osmotic diuretic is negligible (a) Glycerin (b) Mannitol (c) Isosorbide (d) All of the above

Last Answer : Ans: B

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.

What is osmotic pressure ?

Description : What is osmotic pressure ?

Last Answer : Osmotic pressure is the pressure created in a aqueous solution by a region of lower solute concentration upon a region of higher solute concentration forcing the passage of water from that to this more ... a semipermeable membrane but it creates a compensatory flux of water in the opposite way.

What are the main mineral salts responsible for the cellular osmotic regulation?

Description : What are the main mineral salts responsible for the cellular osmotic regulation?

Last Answer : The main ions that act in the regulation of the osmotic pressure in cells and tissues are the chlorine anion, the sodium cation and the potassium cation.

Which one of the following is NOT a function of kidney - (1) Regulation of blood pH (2) Removal of metabolic wastes from the body (3) Production of antibodies (4)Regulation of osmotic pressures of the blood

Description : Which one of the following is NOT a function of kidney - (1) Regulation of blood pH (2) Removal of metabolic wastes from the body (3) Production of antibodies (4)Regulation of osmotic pressures of the blood

Last Answer : (3) Production of antibodies Explanation: Kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and ... diverted to the urinary bladder whereas the antibodies are produced by antigens in the cell.

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.