LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Chapter 2, Problem 4MC
Which plasma membrane structures serve in cell recognition and act as a “personal ID card” for the cell?
| a | Integral proteins and peripheral proteins |
| b. | Glycolipids and glycoproteins |
| c | Phospholipids and cholesterol |
| d | Cholesterol and integral proteins |
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State the functions and importance of each of the following cell membrane components.
1. Phospholipid
2. Sphingolipid
3. Glycoprotein
4. Glycolipid
5. Peripheral Protein
6. Integral Protein
7. Cholesterol
8. Cytoskeleton Filaments
The plasma membrane is composed of a variety of lipid molecules.
1. Phosphatidylethanolamine
2. Phosphatidylcholine
3. Phosphatidylinositol
4. Phosphatidylserine
5. Sphingomyelin
6. Glycolipids
7. Cholesterol.
Which lipids contain sugar molecules?
A young man in his 20s has a heart attack and is rushed to the hospital. Blood is drawn, and his cholesterol level is tested and found to be very high. The doctor tells him that he has a genetic condition in which he is unable to effectively remove LDL particles containing cholesterol from his blood and into his cells. Which cellular process is not functioning normally? a. channel-mediated facilitated diffusion b. receptor-mediated endocytosis c. exocytosis d. simple diffusion?
Chapter 2 Solutions
LooseLeaf for Human Anatomy
Ch. 2 - Describe an advantage of using TEM rather than LM...Ch. 2 - Prob. 2WYLCh. 2 - Prob. 3WYLCh. 2 - Prob. 4WYLCh. 2 - In general, what materials may cross a selectively...Ch. 2 - What is diffusion?Ch. 2 - Describe the process of osmosisCh. 2 - Discuss the similarities between facilitated...Ch. 2 - Describe the characteristics of the cytosol.Ch. 2 - Describe the functions of lysosomes, mitochondria,...
Ch. 2 - Contrast the fates of proteins synthesized on free...Ch. 2 - What is the function of cilia?Ch. 2 - What is the function of the nuclear envelope?Ch. 2 - What is the difference between chromatin and...Ch. 2 - Observation shows that most cells are suspended in...Ch. 2 - List the stages of mitosis in order of occurrence....Ch. 2 - Prob. 17WYLCh. 2 - Prob. 18WYLCh. 2 - Match each numbered item with the most closely...Ch. 2 - Prob. 1MCCh. 2 - Prob. 2MCCh. 2 - Facilitated diffusion differs from active...Ch. 2 - Which plasma membrane structures serve in cell...Ch. 2 - _____ increase the outer surface area of the...Ch. 2 - Prob. 6MCCh. 2 - Interphase of the cell cycle consists of the...Ch. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - Prob. 10MCCh. 2 - Describe three main regions common to all cells,...Ch. 2 - Prob. 2CRCh. 2 - Prob. 3CRCh. 2 - Prob. 4CRCh. 2 - Prob. 5CRCh. 2 - Prob. 6CRCh. 2 - Identify the three parts of the cytoskeleton, and...Ch. 2 - What are the basic components of the nucleus, and...Ch. 2 - Prob. 9CRCh. 2 - Identify the phases of mitosis, and briefly...Ch. 2 - Prob. 1DCRCh. 2 - Prob. 2DCR
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- The 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_forwardComponent of the plasma membrane that is responsible for cell signaling? a Proteins b Carbohydrates c Phospholipid d Cellulosearrow_forwardWhich of the following describes the function of cholesterols in plasma membranes to help regulate cell transport? Cholesterols are mainly responsible for cell signaling and cell recognition. Cholesterols act as fluidity buffer that make the membranes more fluid at higher B) temperatures and less fluid at lower temperatures. Cholesterols act as fluidity buffer that make the membranes less fluid at higher temperatures and more fluid at lower temperatures. Cholesterols in the phospholipid bilayer increase the membrane's permeability to ions and small molecules.arrow_forward
- A phospholipid that is destined to become part of the plasma membrane is synthesized inside a cell. Describe the process of making this molecule and its path to becoming part of the plasma membrane, giving specific details about where in the cell it would be for each step and each of the organelles/cell structures involved.arrow_forwardThe plasma membrane consists mainly of: A Proteins embedded in a carbohydrate bilayer B Phospholipids embedded in a protein bilayer C Proteins embedded in a phospholipid bilayer D Proteins embedded in a polymer of glucose moleculesarrow_forwardIn the plasma membrane, form(s) the lipid bilayer,determine(s) the fluid nature of the membrane, andmainly determine(s) the function of the membrane.a. phospholipids, cholesterol, proteinsb. phospholipids, proteins, cholesterolc. proteins, cholesterol, phospholipidsd. cholesterol, phospholipids, proteinse. cholesterol, proteins, phospholipidsarrow_forward
- Using the space below, draw a model (picture, representation) of a cross-section of a cell membrane, including and labeling the following elements: a. Phospholipid bilayer, noting hydrophilic heads and hydrophobic tails b. Cholesterol c. Integral membrane proteins (include 1 glycoprotein and label the carbohydrate) d. Peripheral membrane proteins Describe how integral membrane proteins and peripheral membrane proteins are different in your own words, and include in your description what type of amino acids you might find on these proteins.arrow_forwardAccording to the fluid-mosaic model of the plasma membrane, a.protein and phospholipids form a regular, repeating structure. b.the membrane is a rigid structure. c.phospholipids form a double layer, with the polar parts facing each other. d.proteins are free to move within a double layer of phospholipids.arrow_forwardwhich one of the following diffuses more readily through the lipid bilayer of a plasma membrane a. polar molecules b. non polar molecules c. ionized molecules d. waterarrow_forward
- In a plasma membrane, the tails of phospholipids orient toward each other because they are?arrow_forwardIntegral proteins are also known as Select one: a. Intrinsic proteins b. Glycosylated proteins c. Transmembrane proteins d. Bilayer proteinsarrow_forwardMatch the following with the term that best describes them integral part of the plasma membrane can easily cross the semi-permeable plasma membrane cellular currency of cell that enables it to transport molecules against the concetration gradient (i.e active transport) act as channels carriers to transport polar molecules like sugars into cells A. phospholipids B. proteins C. ATP D. oxygenarrow_forward
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