Concept explainers
(a)
Interpretation: The matching of the terms, passive transport, facilitated transport and active transport with the given statement related to membrane transport processes has to be predicted.
Concept introduction: The various types of cellular processes are completed by the transport of different type of molecules across the cell membrane. There are three types of transport processes exists in the cell that helps in the transport of these important molecule through the cell membrane. The three types of transport processes are passive transport, facilitated transport and active transport.
(b)
Interpretation: The matching of the terms, passive transport, facilitated transport and active transport with the given statement related to membrane transport processes has to be predicted.
Concept introduction: The various types of cellular processes are completed by the transport of different type of molecules across the cell membrane. There are three types of transport processes exists in the cell that helps in the transport of these important molecule through the cell membrane. The three types of transport processes are passive transport, facilitated transport and active transport.
(c)
Interpretation: The matching of the terms, passive transport, facilitated transport and active transport with the given statement related to membrane transport processes has to be predicted.
Concept introduction: The various types of cellular processes are completed by the transport of different type of molecules across the cell membrane. There are three types of transport processes exists in the cell that helps in the transport of these important molecule through the cell membrane. The three types of transport processes are passive transport, facilitated transport and active transport.
(d)
Interpretation: The matching of the terms, passive transport, facilitated transport and active transport with the given statement related to membrane transport processes has to be predicted.
Concept introduction: The various types of cellular processes are completed by the transport of different type of molecules across the cell membrane. There are three types of transport processes exists in the cell that helps in the transport of these important molecule through the cell membrane. The three types of transport processes are passive transport, facilitated transport and active transport.
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EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- 1) You are studying a transport protein. It appears to bind temporarily to the molecule to be transported. During normal transport, no energy is expended. The addition of a particular molecule that closely resembles the normally transported molecule inhibits transport. An increase in the concentration of the normally transported molecule in the presence of a constant concentration of the inhibitor increases the rate of transport. What kind of transport is described? 2) What are peripheral membrane proteins?arrow_forwardWhich of the following statements is/are true about transport proteins?I. They carry out biochemical functions that remove nutrients in a cell.II. They are proteins which have high specificity to a single kind of molecule.III. They function to accumulate solutes against the concentration gradient.IV. They are highly regulated in a cell.arrow_forwardIndicate whether the following statements are true or false. If a statement is false, explain why it is false. a. All types of cells contain cell walls, but only some cell types possess plasma membranes. b. The distribution of specific lipids to the inner and outer leaflet is asymmetrical, or biased, in plasma membranes. C. Lateral diffusion is the movement of lipids from one layer of the membrane to the other. d. Fatty acids tails are used to embed integral, transmembrane proteins in the plasma membrane.arrow_forward
- If the concentration of a solute is the same both inside and outside the cell, what might you expect with regard to its transport by a membrane protein? A. Since there is no concentration gradient, no transport either in or out of the cell is possible. B. The transport protein has been saturated. C. The solute must be phosphorylated with a phosphate group from ATP before further transport can occur. D. Movement of the solute across the membrane could occur and cause accumulated on one side of the membrane by an active transport protein. The concerted model of allosteric regulation is different from the sequential model, because: A. The concerted model is used to explain homotropic effects B. The sequential model is used to explain heterotropic effects C. Both A and B D. Neither A nor Barrow_forwardone reason active transport has a limited maximum transport rate at which it can progress is due to the fact that a. energy required is not available inside the cell b. carrier proteins are not on the surface of the cell membrane c. ion channels are limited in size d. the number of carrier proteins is limited and therefore they can become saturatedarrow_forwardMatch the following statement related to membrane transport processes to the appropriate term or terms: passive transport, facilitated transport, active transport. A transporter (or carrier) protein is necessary. (Select all that apply.) passive transport facilitated transport active transport O Oarrow_forward
- a. Substance X is transported by passive transport and Substance Y is transported by active transport b. Substance X is transported by active transport and Substance Y is transported by passive transport c. Substance X is transported by active transport and Substance Y is transported by active transport d. Substance X is transported by passive transport and Substance Y is transported by passive transportarrow_forwardWould it be possible for small ions to passively diffuse (simple diffusion) across a selectively permeable membrane? Why? A Yes, because ions are highly non-polar in nature B Yes, because ions are highly polar in nature No, because it needs the aid of transport proteins to cross the membrane No, because not only transport proteins but also metabolic energy from ATP are needed to transport ions across the plasma membranearrow_forwardPassive membrane transport processes include... a.movement of water from an area of high solute concentration to an area of low concentration b.consumption of ATP c.the use of transport proteins when moving substances from areas of low to high concentration d.movement of a substance down its concentration gradientarrow_forward
- Which of these statements about facilitated diffusion is true?a. In facilitated diffusion, net movement is down the concentrationgradient.b. Facilitated diffusion requires the expenditure of energy.c. Facilitated diffusion does not require a carrier protein.d. Facilitated diffusion moves materials through ion pumps.e. Facilitated diffusion moves materials in vesicles.arrow_forwardWhat is the Description and Examples in the body of these Cell transport? Explain in 2-3 sentencesDescription:Examples in the body: a. Diffusion b. Osmosis c. Facilitated Diffusionarrow_forwardGlucose is transported across the cell membrane of intestinal cells. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information, which transport mechanism is most probably functioning in the intestinal cells? A facilitated diffusion B simple diffusion C osmosis D concentration gradientarrow_forward
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