Answered: )Which of the following statements…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 115QRT

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1)Which of the following statements about facilitated diffusion is FALSE?

It goes up its concentration gradient, from low to high.
It is utilized primarily for larger polar and/or charged molecules/ions

2)If a solution outisde a cell has the same osmolarity as the cell itself, it is said that the soluion is ___________________ to the cell.

A) Isotonic
B) Hypertonic
C) nonpolar

3)What is the second type of lipid that plays a major role in the plasma membrane? This lipid does not have polar and nonpolar regions (its not amphiphilic) but plays a critical role in membrane permeability.

A)phospholipids

b) steroid hormones
c) Cholesterol

4)Which one of the following influences the rate at which diffusion can occur?

Size of the concentration gradient
Mass of the molecule
Distance
All of the above affect diffusion
None of the above affect the diffusion rate

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