Description : The exchange of material takes place (A) Only by diffusion (B) Only by active transport (C) Only by pinocytosis (D) All of these
Last Answer : D
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 : By which of the following can movement of materials across animal cell membranes be accomplished? I Active transport, II Diffusion, III Pinocytosis (A) I only (B) II only (C) I and II only (D) All I, II, and III
Last Answer : Will be only two.
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 : 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 : 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 : 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 : The process of taking dissolved material into the substance of the cell is called. a. Phagocytosis b. Pinocytosis c. absorption d. diffusion
Last Answer : absorption
Description : The movement of glucose into a cell occurs by a. Facilitated diffusion. b. Active transport. c. Simple diffusion. d. Phospholipid exchange.
Last Answer : b. Active transport.
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
Description : Digestion of starch takes place in (D.P.M.T. 82) (a) stomach and duodenum (b) Buccal cavity duodenum (c) Buccal cavity and oesophagus (d) Duodenum only
Last Answer : (b) Buccal cavity duodenum
Description : The phenomenon of osmosis is opposite to that of (A) Diffusion (B) Effusion (C) Affusion (D) Coagulation
Last Answer : (A) Diffusion
Description : All the following processes occur rapidly in the membrane lipid bilayer except (A) Flexing of fatty acyl chains (B) Lateral diffusion of phospholipids (C) Transbilayer diffusion of phospholipids (D) Rotation of phospholipids around their long axes
Last Answer : (C) Transbilayer diffusion of phospholipids
Description : Liver is excretory organ as (a) Urea is formed here (b) Deamination takes place (c) Eliminate bile pigments (d) None of the above
Last Answer : (c) Eliminate bile pigments
Description : Deamination of proteins takes place in (a) Kidney (b) Liver (c) Spieen (d) Air
Last Answer : (b) Liver
Description : Fat digestion takes place in (a) Buccal cavity (b) Stomach (c) Intestine (d) All
Last Answer : (c) Intestine
Description : Cellulose digestion in rabbit takes place in (a) Vermiform Appendix (b) Caecum (c) Both (d) None
Last Answer : (b) Caecum
Description : Digestion of food in Leucosolenia takes place : (a) In the spongocoel (b) In the amoebocyte (c) In the choanocyte (d) First in choanocyte and then in amoebocyte
Last Answer : (d) First in choanocyte and then in amoebocyte
Description : Trypsinogen is converted into active Trypsin by : (a) Mucus (b) Bile juice (c) Enterokinase (d) Hormone
Last Answer : (c) Enterokinase
Description : Which of the following converts inactive pepsinogen into active pepsin : (a) HCI (b) Mucous (c) Hormone (d) Enterokinase
Last Answer : (a) HCI
Description : Bulk transport across cell membrane is accomplished by (A) Phagocytosis (B) Pinocytosis (C) Extrusion (D) All of these
Description : How is facilitated diffusion similar to active transport How is it different?
Last Answer : Need answer
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 : What do facilitated diffusion and active transport have in common ?
Last Answer : What are the differences between them? Facilitated diffusion can be confused with active transport because in both processes there is participation of membrane proteins. In active transport however the ... it does not require energy. Cell Membrane Review - Image Diversity: active transport
Description : How active transport is different from Diffusion?
Last Answer : In active transport movement of substances and materials take place against the concentration gradient i.e. from lower to higher concentration. While in Diffusion molecules move from higher to lower concentration.
Description : The primary force moving water molecules from the blood plasma to the interstitial fluid is a. active transport b. cotransport with H+ c. facilitated diffusion d. cotransport with Na+ e. filtration
Last Answer : filtration
Description : Sugars depend on which mechanism to enter the cell a. facilitated diffusion b. active transport c. both d. none of them
Last Answer : facilitated diffusion
Description : Which transmembrane movement involves carriers? a. facilitated diffusion b. active transport c. both d. none of them
Last Answer : both
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 : Fructose is absorbed into the blood through mucosa cells of intestine by the process called (a) active transport (b) facilitated transport (c) simple diffusion (d) co-transport mechanism.
Last Answer : (b) facilitated transport
Description : The movement of ions against the concentration gradient will be (a) active transport (b) osmosis (c) diffusion (d) all of the above.
Description : 07. What is implied by «active transport»? a) Transport of drugs trough a membrane by means of diffusion b) Transport without energy consumption c) Engulf of drug by a cell membrane with a new vesicle formation
Last Answer : d) Transport against concentration gradient
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 : 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 most important chemical process in digestion is: a) diffusion b) active transport c) hydrolysis
Last Answer : ANSWER: C -- HYDROLYSIS
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 : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly
Last Answer : (b) A : Alveolar cavity - Main site of exchange of respiratory gases
Description : In Ruminent bacterial action on food take place in (a) Rumen (b) Reticulum (c) Omassum (d) Abomossum
Last Answer : (a) Rumen
Description : Where does complete digestion of protein take place (a) Rectum (b) Ileum (c) Duodenum (d) Stomach
Last Answer : (b) Ileum
Description : Transport of food material in higher plants takes place through (a) companion cells (b) transfusion tissue (c) tracheids (d) sieve elements.
Last Answer : (d) sieve elements.
Last Answer : d) sieve elements.
Description : Brunner’s glands are found in (a) Duodenum only (b) Ileum only (c) Both (d) None.
Last Answer : (a) Duodenum only
Description : What are the tiny vessels through which diffusion takes place between the blood and the body tissues?
Last Answer : The capillaries. Check Wiki for "Capillary action".
Description : When does diffusion of gases takes place?
Last Answer : Diffusion of gases takes place when the gases do not react with one another.
Description : Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids ( ... Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary
Last Answer : (B) Molecular diffusion in solid is much faster than that in liquids
Description : The blood-brain-barrier: a. contains the foot processes of astrocytes b. contains endothelial cells with tight junction c. allows transport in one direction only ie from the vascular system into the brain d. does not allow diffusion of water
Last Answer : does not allow diffusion of water
Description : Which of the following is located in the mitochondria? (A) Cytochrome oxidase (B) Succinate dehydrogenase (C) Dihydrolipoyl dehydrogenase (D) All of these
Last Answer : (D) All of these
Description : The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid
Last Answer : (A) Bile Salts
Description : The pH of blood is 7.4 when the ratio between H2CO3 and NaHCO3 is (A) 1 : 10 (B) 1 : 20 (C) 1 : 25 (C) 1 : 30
Last Answer : (B) 1 : 20