What type of energy helps drive the passive processes of diffusion, osmosis, and facilitated diffusion? (Pick ALL correct statements involved with this.) In other words what are all the TRUE statements regarding these processes? Select one or more: a. random motion which increases when molecules have low molecular weight b. random motion which decreases when temperature decreases c. random motion which increases when temperature increases d. random motion which increases when molecules concentration increases e. ATP energy f. random motion which increases when molecules have large molecular weight g. random motion which increases when molecules concentration decreases

What type of energy helps drive the passive processes of diffusion, osmosis, and facilitated diffusion? (Pick ALL correct statements involved with this.) In other words what are all the TRUE statements regarding these processes? Select one or more: a. random motion which increases when molecules have low molecular weight b. random motion which decreases when temperature decreases c. random motion which increases when temperature increases d. random motion which increases when molecules concentration increases e. ATP energy f. random motion which increases when molecules have large molecular weight g. random motion which increases when molecules concentration decreases

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter3: Cell Structure And Function

Section: Chapter Questions

Problem 12RQ: Water moves via osmosis _______. a. throughout the cytoplasm b. from an area with a high...

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An increase in temperature will cause an increase in diffusion in diffusion rate becausea. hot water changes to a solid, so diffusion is easier.b. the frequency and force of molecular collisions decreases.c. hot molecules get smaller and theseforce diffuse faster.d. the frequency and force of molecular collisions increases.
Diffusion is an (a) endergonic process because free energy increases (b) endergonic process because free energy decreases (c) exergonic process because entropy increases (d) exergonic process because entropy decreases (e) more than one of the preceding options are true
Both H+ and Ca2+ are ions that move through thecytosol. Why is the movement of H+ ions so much fasterthan that of Ca2+ ions? How do you suppose the speed ofthese two ions would be affected by freezing the solution?Would you expect them to move faster or slower? Explainyour answer.
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Water moves via osmosis _______. a. throughout the cytoplasm b. from an area with a high concentration of other solutes to a lower one c. from an area with a low concentration of solutes to an area with a higher one d. from an area with a low concentration of water to one of higher concentration
Cell membranes consists mainly of ________ and ________ . a. lipids; carbohydrates c. lipids; phospholipids b. phospholipids; protein d. phospholipids; ECM
In the experiment of Racker and Stoeckenius, bacteriorhodopsin wasoriented in such a way that it pumped H into a vesicle. Each vesicleactually contained many molecules of bacteriorhodopsin. How wouldthe results have been affected if 50% of the bacteriorhodopsin moleculespumped H into the vesicle and 50% pumped H out of the vesicles?a. The same amount of ATP would be made in the presence of light,and no ATP would be made in the dark.b. More ATP would be made in the presence of light, and no ATPwould be made in the dark.c. No ATP would be made in the presence of light, and no ATP wouldbe made in the dark. d.No ATP would be made in the presence of light, but some ATPwould be made in the dark.e. Some ATP would be made in the presence of light, and some ATPwould be made in the dark
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i just answered a hw question that i was a little confused on. i answered it but am not fully sure if it's correct. so can you take a look at check if my answer is correct and if it's not, then a explaintion would be helpful. Would you expect water molecules to move faster when there is a HIGH concentration gradient or a LOW concentration gradient? Water molecules would move faster when there is a high concentration gradient because the pressure for the molecules in the high concentration to reach equilibrium increases since there are more molecules there than in the low concentration. So as the molecules move down the concentration gradient faster to equalize the concentration on both sides due to the increased pressure, the rate of diffusion increases.
Imagine that you place a drop of red food coloring in a glass of water.At first, the red molecules remain concentrated where you placedthe drop, but the color eventually spreads throughout the water.This example illustrates a. hydrolysis.b. decreasing entropy.c. osmosis.d. diffusion