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 : There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s ... transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose
Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose
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 : 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 : 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 : 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 : 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 : 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 : Which of the following statement(s) is/are true concerning water movement across cell membranes? a. Water moves only actively through cell membrane transport proteins b. For most cells of ... cells such as the glomerulus of the kidney actively transport water to maintain hydrostatic pressure
Last Answer : Answer: b, c The energetics of water transport across cell membranes is simplified by the fact that water moves only passively due to gradients of hydrostatic pressure or water ... water is distributed at equilibrium. Water distribution is determined entirely by solute to solute distribution
Description : Without saturation of transport proteins and under same concentration gradient how can the speed of simple diffusion be compared to the speed of facilitated diffusion ?
Last Answer : The action of facilitator proteins in facilitated diffusion makes this type of diffusion faster than simple diffusion under equal concentration gradients of the moved substance.
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 : Intestinal absorption of calcium occurs by (A) Active takeup (B) Simple diffusion (C) Facilitated diffusion (D) Endocytosis
Last Answer : 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 : The movement of ions against the concentration gradient will be (a) active transport (b) osmosis (c) diffusion (d) all of the above.
Last Answer : (a) active transport
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 : What do the processes of active transport and facilitated process have in common?
Last Answer : answer:Billy. Did you mean to tag this with “cell phones” or are you asking about cells? Also, is there another term for “facilitated process”? Might you be referring to “facilitated diffusion”?
Description : The fatty acids can be transported into and out of mitochondria through (A) Active transport (B) Facilitated transfer (C) Non-facilitated transfer (D) None of these
Description : __________ involves combining and co -ordinating two or more modes of transportation to take advantage of benefits offered by different types of carriers. A)Intermodal transportation B)Physical distribution C)Containerised movement D)Efficient and effective transportation E)Freight forwarding
Last Answer : A)Intermodal transportation
Description : What is facilitated diffusion? -Biology
Last Answer : answer:
Description : How is facilitated diffusion different from simple diffusion? -Biology
Description : In facilitated diffusion do molecules move down concentration gradient?
Last Answer : What is the answer ?
Description : How does facilitated diffusion present similarities with enzymatic chemical reactions ?
Last Answer : One of the main examples of facilitated transport is the entrance of glucose from the blood into cells. Glucose from blood binds to specific permeases (hexose-transporting permeases) present in the ... job is concluded the permease is not consumed and can perform successive other transports.
Description : How does the intensity of facilitated diffusion vary in relation to the concentration of the moved substance ?
Last Answer : What is the limiting factor? Likewise simple diffusion facilitated diffusion is more intense when the concentration gradient of the substance increases and less intense when the gradient lessens. In ... which the maximum transport capacity of the substance across the membrane is achieved.
Description : What is the difference between simple and facilitated diffusion ?
Last Answer : Facilitated by which type of molecule does the term facilitated mean? Simple diffusion is the direct passage of substances across the membrane in favor of their concentration gradient. In ... their passage through the membrane. Cell Membrane Review - Image Diversity: facilitated diffusion
Description : Q. What are the salient features of facilitated diffusion?
Last Answer : A. It is carrier mediated. It does not require energy directly
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 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 : 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 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 : Glucose is taken back from glomerular filtrate through (a) active transport (b) passive transport (c) osmosis (d) diffusion
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 : 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
Last Answer : (D) All of these
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 : The third active process for amino acids transport involves (A) Acidic amino acids (B) Basic amino acids (C) Neutral amino acids (D) Sulphur containing amino acids
Description : Barrier potential in a P-N junction is caused by (A) Thermally generated electrons and holes. (B) Diffusion of majority carriers across the junction. (C) Migration of minority carriers across the junction. (D) Flow of drift current.
Last Answer : (B) Diffusion of majority carriers across the junction.
Description : All the following statements about steroid hormones are true except (A) They are hydrophobic (B) They require carriers to transport them in circulation (C) Their receptors are intracellular (D) They require cyclic AMP as second messenger
Last Answer : Answer : D
Description : What is facilitated transport? -Biology
Description : Q. Can you give an example of facilitated transport?
Last Answer : A. Glucose transporters
Description : Match the items given in column I with those in column II and choose the correct option. Column I Column II A. Rennin (i) Vitamin B12 B. Enterokinase (ii) Facilitated transport C. Oxyntic cells (iii)Milk proteins D. Fructose (iv) ... ii (c) A-iv, B-iii, C-ii, D-i (d) A-iii, B-iv, C-i, D-ii
Last Answer : (d) A-iii, B-iv, C-i, D-ii
Description : Which of the following criteria does not pertain to facilitated transport? (a) Transport saturation (b) Uphill transport (c) Requirement of special membrane proteins (d) High selectivity
Last Answer : (b) Uphill transport
Description : Biological activity of tocopherols has been attributed in part to their action as (A) Antioxidant (B) Anticoagulents (C) Provitamin (D) Carriers in electron transport system
Last Answer : Answer : B
Description : The process of imbibitions involves - (1) Diffusion (2) Capillary action (3) Absorption (4) Both (1) and (2)
Last Answer : (3) Absorption Explanation: The uptake or absorption of water by the solid substance without forming a solution is called imbibition. The substances absorbing water are called imbibants which do not dissolve in water. It is the initial step in the germination of the seeds.
Description : The process of imbibition involves (1) Diffusion (2) Capillary action (3) Absorption (4) Both (1) and (2)
Last Answer : Absorption
Description : Catalyst carriers (A) Have very high selectivity (B) Increase the activity of a catalyst (C) Provide large surface area with a small amount of active material (D) Inhibit catalyst poisoning
Last Answer : (C) Provide large surface area with a small amount of active material