Description : 04. The main mechanism of most drugs absorption in GI tract is: a) Active transport (carrier-mediated diffusion) b) Filtration (aqueous diffusion) c) Endocytosis and exocytosis d) Passive diffusion (lipid diffusion)
Last Answer : PHARMACOKINETICS
Description : Intestinal absorption of calcium occurs by (A) Active takeup (B) Simple diffusion (C) Facilitated diffusion (D) Endocytosis
Last Answer : Answer : A
Description : Glucose is taken back from glomerular filtrate through (a) active transport (b) passive transport (c) osmosis (d) diffusion
Last Answer : (a) active transport
Description : The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.
Last Answer : d) simple diffusion.
Description : Sodium ions are "pumped" from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of (A) Diffusion (B) Passive transport (C) Osmosis (D) Active transport
Last Answer : (D) Active transport
Description : The absorption of intact protein from the gut in the foetal and newborn animals takes place by (A) Pinocytosis (B) Passive diffusion (C) Simple diffusion (D) Active transport
Last Answer : A
Description : The random movement of particles in solution towar a uniform distribution is termed: a) osmosis b) repulsion c) diffusion d) facilitated diffusion
Last Answer : ANSWER: C -- DIFFUSION
Description : __________ is the separation technique used for desalination of sea water. (A) Thermal diffusion (B) Reverse osmosis (C) Adsorption (D) Absorption
Last Answer : (B) Reverse osmosis
Description : In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is (a) diffusion (b) absorption (c) osmosis (d) electrophoresis
Last Answer : Ans:(c)
Description : In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is (1) Diffusion (2) Absorption (3) Osmosis (4) Electrophoresis
Last Answer : (3) Osmosis Explanation: Dialysis is the artificial process of getting rid of waste (diffusion) and unwanted water (ultrafiltration) from the blood. This process is naturally done by our kidneys. It ... it results in osmotic pressure which causes the fluid to move from the blood into the dialysate.
Description : In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is (1) Diffusion(2) Absorption (3) Osmosis (4) Electrophoresis
Last Answer : Osmosis
Description : Fatty acids can be transported into and out of cell membrane by (A) Active transport (B) Facilitated transport (C) Diffusion (D) Osmosis
Last Answer : B
Description : The movement of ions against the concentration gradient will be (a) active transport (b) osmosis (c) diffusion (d) all of the above.
Description : Substances insoluble in a membrane are carried across the membrane with the concentration gradient by means of a carrier molecule in a process known as: a) osmosis. b) diffusion. c) active transport. d) facilitated diffusion.
Last Answer : ANSWER: D -- FACILITATED DIFFUSION.
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
Description : The success of oral rehydration therapy of diarrhoea depends upon the following process in the intestinal mucosa: A. Sodium pump mediated Na+ absorption B. Glucose coupled Na+ absorption C. Bicarbonate coupled Na+ absorption D. Passive Na+ diffusion secondary to nutrient absorption
Last Answer : B. Glucose coupled Na+ absorption
Description : Opioid analgesics are either contraindicated or must be used with extreme caution in several clinical situations. For morphine, such situations do not include (a) Aqueous diffusion (b) Aqueous hydrolysis (c) Lipid diffusion (d) Pinocytosis or endocytosis (e) Special carrier transport
Last Answer : Ans: E
Description : Natural L-isomers of amino acids are absorbed from intestine by (A) Passive diffusion (B) Simple diffusion (C) Faciliated diffusion(D) Active process
Last Answer : Answer : D
Description : Majority of drugs cross biological membranes primarily by: A. Passive diffusion B. Facilitated diffusion C. Active transport D. Pinocytosis
Last Answer : A. Passive diffusion
Last Answer : C. Is affected by extent of ionization of drug molecules
Description : Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II. Column I Column II (a) Glycerol, fatty acids Duodenum, ... , glucose Small intestine, active absorption (d) Fructose, Na+ Small intestine, passive absorption
Last Answer : (c) Glycine, glucose Small intestine, active absorption
Description : The process by which cell can take in fluid and molecules too large to be carried across the plasma membrane by active transport is called a. phagocytosis b. Pinocytosis c. absorption d. diffusion
Last Answer : Pinocytosis
Description : Excess amount of absorbed water by plants is liberated out by – (1) Evaporation (2) Osmosis (3) Diffusion (4) Transpiration
Last Answer : (4) Transpiration Explanation: Water vapour transpires constantly through pores (stomata) in the surface of plant's leaves.
Description : A bottle filled with previously moistened mustard seeds and water was screw capped tightly and kept in a corner. It blew up suddenly after about half an hour. The phenomenon involved is (a) diffusion (b) imbibition (c) osmosis (d) DPD.
Last Answer : b) imbibition
Description : Excess amount of absorbed water by plants is liberated out by : (1) Evaporation (2) Osmosis (3) Diffusion (4) Transpiration
Last Answer : Transpiration
Description : What is the difference between osmosis and diffusion?
Last Answer : A: Osmosis is the movement of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration, while diffusion is the movement of particles from an area of high concentration to an area of low concentration.
Description : What is the difference between diffusion and osmosis?
Last Answer : A: Diffusion is the movement of particles from an area of high concentration to an area of low concentration, while osmosis is the movement of water molecules from an area of low solute concentration to an area of high solute concentration.
Last Answer : A: Diffusion is the movement of particles from an area of high concentration to an area of low concentration, while osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
Last Answer : A: Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, while osmosis is the diffusion of water molecules across a selectively permeable membrane.
Last Answer : A: Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration, while diffusion is the movement of molecules from an area of high concentration to an area of low concentration.
Description : What is the difference between diffusion and osmosis ? -Biology
Last Answer : The process through which only Liquids move from a Higher concentrated solution towards a Lower concentrated solution through a semi-permeable membrane is called Osmosis whereas The process through which any substance ... :) Stay Safe, Stay Curious, Keep Learning, Keep Growing..... Thankyou!!!
Description : Differentiate between diffusion and osmosis. -Biology 9th
Last Answer : Difference between Osmosis and DiffusionOsmosisDiffusionIt is limited only to the liquid medium.Occurs in liquid, gas and even solids.Requires a semipermeable membrane.Does not require a semipermeable membrane. ... to a glass of water, where eventually, the entire water content becomes coloured.
Last Answer : answer:
Description : Differentiate between Diffusion and Osmosis. -Biology
Description : Osmosis is the diffusion of what substance through a cell membrane? -Biology
Description : $ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable membrane.
Last Answer : $ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable ... D. If both As and R are wrong.
Description : How do diffusion and osmosis relate to the cell membrane?
Last Answer : Need answer
Description : The phenomenon of osmosis is opposite to that of (A) Diffusion (B) Effusion (C) Affusion (D) Coagulation
Description : What is the difference between osmosis and diffusion ?
Last Answer : Osmosis is the phenomenon of movement of solvent particles, in general water, from a region of lower solute concentration to a region of higher solute concentration. Diffusion, in the other hand, ... of water (solvent) and diffusion as movement of solutes, both concentration gradient-driven.
Description : The working principle of a washing machine is? A. Diffusion B. Reverse osmosis C. Dialysis D. Centrifugation
Last Answer : ANSWER: D
Description : The washing machine works on the principle of – (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation
Last Answer : (4) Centrifugation Explanation: Washing machines work on the principle of centrifugation. They are based on medium sized centrifuges that put an object in rotation around a fixed axis, applying force perpendicular to the axis.
Description : The working principle of a washing machine is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion
Last Answer : (1) centrifugation Explanation: The working of the washing machine is quite high tech, and includes a set sequence of washing, rinsing, and spinning (plus a pre-wash if desired).
Description : The washing machine works on the principle of - (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation
Description : The working principle of a 'Washing machine' is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion
Last Answer : (1) centrifugation Explanation: The principle behind the spinning dry of the clothes in a washing machine is centrifugal force. The fast spinning around of the clothes in the drum creates a large ... wet clothes are flung outwards to the drum edge and the water escapes through the drum holes.
Description : Solar energy is converted into chemical energy during – (1) Transpiration (2) Photosynthesis (3) Diffusion (4) Osmosis
Last Answer : (2) Photosynthesis Explanation: In photosynthesis, solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are ... captured from the sun into chemical energy that can be used to fuel the organism's activities.
Description : Separation of the isotopes of helium for scientific investigations is done by (A) Reverse osmosis (B) Thermal diffusion (C) Leaching (D) Solvent extraction
Last Answer : (B) Thermal diffusion
Description : Reverse osmosis is also called (A) Dialysis (B) Electrodialysis (C) Diffusion (D) Ultra-filtration
Last Answer : (D) Ultra-filtration
Description : Guttation is the result of (a) diffusion (b) transpiration (c) osmosis (d) root pressure.
Last Answer : (d) root pressure.
Description : Bacterial cells in biofilms can communicate with each other through a. osmosis b. quorum sensing c. diffusion d. enzymes
Last Answer : b. quorum sensing
Description : The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion
Last Answer : Answer: Option B