Faciliated duflusion diers fo e aiion in th unlike simple diffusion epe celllar
ID: 218488 • Letter: F
Question
Faciliated duflusion diers fo e aiion in th unlike simple diffusion epe celllar einATP noves molecules across a semipcmwable montrane from an ares of higher c gradient exhihits a rate of molecular t is ied b the number of available camier siple dillivsion does not E. being carrier-miedialed transpon require, ATP while Nan de di 8. if the cone entration of mucose in the liquid outside of , cell " hOhe·han the conceitration init. A water will enter the cell by osmosis B water will leave the cell by osmasit C glucose will enter the cel by osmosis D. glucose will teave the cell by osnvosis E, glucose will enter the cell by simple diffusion 9. Molecules must bind receptor A pinocytosis to receptor sites before being enclosed in vesicles in the process knw phagocytosis , receptor-mediated endocytosis , exocytosis . carrier-mediated transport 0. In Mitosis centromeres of replicated chromosomes separ . prophase . metaphase ate during anaphase. . telophase. interphase 1. If a nerve cell has a greater concentration of Na' on the outside and greater Kt on the inside ell, then the movement of Na' out of the cell and K' into the cell willoccur by faclitated diffusi . True B. False 2. Sodium-Potassium ATP pump is an antiporter. This carrier pump would be expected to transport sodium into the cell and potassium out of the ce transport potassium into the cell and sodium out of the cell transport both sodium and potassium in the same direction , will facilitate the diffusion of sodium and potassium across the cell membrane will block the transport of sodium and potassium across the cell membrane 3. When a sperm cell comes into contact with an egg cell, there is a change in the electri e plasma mem brane and various channel proteins activated. These channels would be c open-gated channels voltage-gated channels. chemical-gated channels. ligand-gated channels. nongated ion channels.Explanation / Answer
Answer:
7). C. Requires a special carrier molecules to move substances across the membrane against the concentration gradient
Explanation:
Both simple diffusion and facilitated diffusion do not need ATP and move substances from higher concentrations to lower. But, facilitated diffusion requires some special carriers whereas simple diffusion doesn’t need it.
8). B. Water will leave the cell by osmosis.
Explanation:
According to osmosis, water will move from a region of low concentration to high concentration through semipermeable membrane. Plasma membrane is impermeable to glucose.
9). C. receptor-mediated endocytosis
Explanation:
When the receptors bind to their specific target molecule, endocytosis is triggered, and the receptors and their attached molecules are taken into the cell in a vesicle. The coat proteins participate in this process by giving the vesicle its rounded shape and helping it bud off from the membrane. Receptor-mediated endocytosis allows cells to take up large amounts of molecules that are relatively rare (present in low concentrations) in the extracellular fluid
10). C. Anaphase
Explanation:
During anaphase of mitosis, the two chromatids of chromosomes and centromere is separated and they move to opposite poles in the cell.
11). B. False
12). B. Transport potassium into the cell and sodium out of the cell
Explanation:
The sodium-potassium pump is found in many cell (plasma) membranes. Powered by ATP, the pump moves sodium and potassium ions in opposite directions, each against its concentration gradient. In a single cycle of the pump, three sodium ions are extruded from and two potassium ions are imported into the cell.
13). B. voltage-gated channels.
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