BIOLOGY:LIFE ON EARTH-W/ACCESS
11th Edition
ISBN: 9780134669076
Author: Audesirk
Publisher: PEARSON
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Chapter 5, Problem 3FTB
Facilitated diffusion involves either _____ proteins or ____ proteins. Diffusion directly through the phospholipid bilayer is called ______ diffusion and molecules that take this route must be soluble in ____ or be very small and have no net electrical charge.
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Active transport is different from passive transport because
a.
no additional energy is required.
b.
molecules move from low concentration to high concentration.
c.
ions are involved.
d.
proteins are involved.
e.
water is moved across the membrane.
Diffusion Compare and contrast lateral and transverse diffusion of lipids in the cellular membrane
Facilitated diffusion differs from active transport in thatfacilitated diffusiona. expends no ATP.b. moves molecules from an area of higher concentration toone of lower concentration.c. does not require a carrier protein for transport.d. moves molecules in vesicles across a semipermeablemembrane.
Chapter 5 Solutions
BIOLOGY:LIFE ON EARTH-W/ACCESS
Ch. 5 - Animal cells are surrounded by ______ fluid. This...Ch. 5 - Which of the following cannot enter a cell by...Ch. 5 -
3. Glycoproteins are important for
a. binding...Ch. 5 - Diffusions a. is always facilitated. b. occurs by...Ch. 5 - Which of the following is not true of endocytosis?...Ch. 5 -
1. Membranes consist of a bilayer of ________....Ch. 5 - A membrane that is permeable to some substances...Ch. 5 - Facilitated diffusion involves either _____...Ch. 5 - Prob. 4FTBCh. 5 -
5. After each molecule, place the two-word term...
Ch. 5 - Prob. 6FTBCh. 5 - Describe and diagram the structure of a plasma...Ch. 5 - Prob. 2RQCh. 5 - What are the five categories of proteins commonly...Ch. 5 - Prob. 4RQCh. 5 -
5. Define hypotonic, hypertonic, and isotonic....Ch. 5 -
6. Describe the following types of transport...Ch. 5 - Name the protein that allows facilitated diffusion...Ch. 5 - Imagine a container of glucose solution, divided...Ch. 5 - Prob. 9RQCh. 5 -
1. Different cells have different plasma...Ch. 5 - Prob. 2AC
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- Which plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipidarrow_forwardThe tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobicarrow_forwardIn the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the internal bilayer. phospholipids often flip-flop between the inner and outer layers. the mosaic refers to proteins attached to the underlying cytoskeleton. the fluid refers to the phospholipid bilayer. the mosaic refers to the symmetry of the internal membrane proteins and sterols.arrow_forward
- Cell membranes consist mainly of a _________. a. carbohydrate bilayer and proteins b. protein bilayer and phospholipids c. phospholipid bilayer and proteinsarrow_forwardVisit this link (http://openstaxcollege.org/l/diffusion) to see diffusion and how it is propelled by the kinetic energy of molecules in solution. How does temperature affect diffusion rate, and why?arrow_forwardWhy is it advantageous for the cell membrane to be fluid in nature?arrow_forward
- Distinguish between the following pairs of terms: a. diffusion; osmosis b. passive transport; active transport c. endocytosis; exocytosisarrow_forwardPut the following structures in order according to the pathway of a secreted protein: a. plasma membrane b. Golgi bodies c. endoplasmic reticulum d. post-Golgi vesiclesarrow_forwardThe principal force driving movement in diffusion is______. a. temperature b. particle size c. concentration gradient d. membrane surface areaarrow_forward
- The plasma membrane __________. a. surrounds the cytoplasm b. separates the nucleus from the cytoplasm c. separates the cell interior from the environment d. both a and carrow_forwardAssign a function(s) to the following cellular structures: a. plasma membrane b. mitochondrion c. nucleus d. ribosomearrow_forwardWhich of the following factors would tend to increase membrane fluidity? A greater proportion of unsaturated phospholipids A relatively high protein content in the membrane A greater proportion of saturated phospholipids A lower temperaturearrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license