Anatomy & Physiology
3rd Edition
ISBN: 9781259398629
Author: McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher: Mcgraw Hill Education,
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Textbook Question
Chapter 4, Problem 2DYB
_____ 2. The molecule that is responsible for most functions of the plasma membrane is
- a. the phospholipid bilayer.
- b. cholesterol.
- c. glycolipid.
- d. protein.
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Mark the following statements about the plasma membrane as true or false. If a statement is false, correct it to make a true statement. a. _____ Integral membrane proteins generally span the width of the plasma membrane, whereas peripheral proteins are found on only one side of the membrane. b. _____ Cholesterol provides the plasma membrane with stability in the face of changing ion concentrations . c. _____ Membrane cholesterol is vitally important for cell-cell recognition. d. _____ Membrane proteins often function as channels or carriers. e. _____ The overall structure of the plasma membrane is a mosaic with the components locked tightly in place
Which of the following is Not a function of the plasma membrane proteins?
A. Acting as enzymes
B. Acting as channels
C. Acting as carriers
D. Stabilizing temperature
Which of the following statements regarding the selective permeability of the lipid bilayer is FALSE?
A. the permeability of the lipid bilayer to different substances varies.
B. The lipid bilayer component of the plasma membrane is highly permeable to nonvolatile molecules such as oxygen.
C. The more hydrophobic or lipid soluble a substance is, the greater the lipid bilayers permeability to that substance.
D. The lipid bilayer component of the plasma membrane is moderately permeable to ions and large, uncharged polar molecules
Chapter 4 Solutions
Anatomy & Physiology
Ch. 4.1 - Prob. 1LOCh. 4.1 - What is the advantage of using a TEM instead of an...Ch. 4.1 - Prob. 2LOCh. 4.1 - Prob. 3LOCh. 4.1 - Prob. 2WDLCh. 4.1 - Prob. 4LOCh. 4.1 - Prob. 5LOCh. 4.1 - Prob. 6LOCh. 4.1 - Prob. 7LOCh. 4.1 - What are the three main structural features of a...
Ch. 4.1 - What cellular structure is responsible for forming...Ch. 4.2 - Prob. 8LOCh. 4.2 - How do lipids maintain the basic physical barrier...Ch. 4.2 - Prob. 9LOCh. 4.2 - Prob. 10LOCh. 4.2 - What type of plasma membrane protein provides the...Ch. 4.3 - Prob. 11LOCh. 4.3 - Prob. 12LOCh. 4.3 - How does O2 diffuse into a cell and CO2 diffuse...Ch. 4.3 - Prob. 8WDLCh. 4.3 - Prob. 13LOCh. 4.3 - LEARNING OBJECTIVE
14. Define osmotic pressure.
Ch. 4.3 - Prob. 15LOCh. 4.3 - WHAT DO YOU THINK?
1 Which setup would exhibit...Ch. 4.3 - Define osmosis.Ch. 4.3 - What occurs to the tonicity of a cell when it is...Ch. 4.3 - What general conclusion can you make concerning...Ch. 4.3 - Prob. 16LOCh. 4.3 - Prob. 17LOCh. 4.3 - Prob. 18LOCh. 4.3 - What transport process involved in the movement of...Ch. 4.3 - Engulfing of a bacterium by a white blood cell...Ch. 4.4 - Prob. 19LOCh. 4.4 - Prob. 20LOCh. 4.4 - Define a resting membrane potential.Ch. 4.4 - LEARNING OBJECTIVE
21. Explain the role of both...Ch. 4.4 - Prob. 22LOCh. 4.4 - Explain how the resting membrane potential is...Ch. 4.4 - Prob. 23LOCh. 4.5 - What are some examples of how cells communicate...Ch. 4.5 - Prob. 24LOCh. 4.5 - How do action of enzymatic receptors and G...Ch. 4.6 - Prob. 25LOCh. 4.6 - Prob. 26LOCh. 4.6 - Prob. 2WDTCh. 4.6 - Describe the general structure of both the...Ch. 4.6 - Prob. 19WDLCh. 4.6 - Prob. 27LOCh. 4.6 - Prob. 28LOCh. 4.6 - Which non-membrane-bound organelle functions (a)...Ch. 4.6 - Prob. 29LOCh. 4.6 - Prob. 30LOCh. 4.6 - Which cellular surface structure functions in (a)...Ch. 4.6 - Prob. 31LOCh. 4.6 - Which cellular junction (a) provides resistance to...Ch. 4.7 - Prob. 32LOCh. 4.7 - Prob. 33LOCh. 4.7 - What is the function of nuclear pores within the...Ch. 4.7 - What is the function of the nucleolus?Ch. 4.7 - Prob. 34LOCh. 4.7 - Describe the structural relationship of DNA and...Ch. 4.8 - Prob. 35LOCh. 4.8 - Prob. 36LOCh. 4.8 - What are the three major structures required for...Ch. 4.8 - Prob. 37LOCh. 4.8 - Prob. 38LOCh. 4.8 - Prob. 39LOCh. 4.8 - Prob. 3WDTCh. 4.8 - What is a codon and an anticodon?Ch. 4.8 - How is mRNA attached to ribosomes and translated...Ch. 4.8 - Prob. 40LOCh. 4.8 - Prob. 29WDLCh. 4.9 - LEARNING OBJECTIVE
41. Explain the structure and...Ch. 4.9 - Prob. 42LOCh. 4.9 - How is chromatin distinguished from a chromosome?Ch. 4.9 - Prob. 43LOCh. 4.9 - Prob. 44LOCh. 4.9 - Prob. 45LOCh. 4.9 - Prob. 4WDTCh. 4.9 - Describe the process of DNA replication that...Ch. 4.9 - What are the events that occur during the mitotic...Ch. 4.10 - Prob. 46LOCh. 4.10 - Prob. 47LOCh. 4.10 - What are the specific changes that occur to DNA...Ch. 4 - All of the following general functions are carried...Ch. 4 - _____ 2. The molecule that is responsible for most...Ch. 4 - Do You Know the Basics?
3. Which process does not...Ch. 4 - Prob. 4DYBCh. 4 - Prob. 5DYBCh. 4 - Prob. 6DYBCh. 4 - Prob. 7DYBCh. 4 - Prob. 8DYBCh. 4 - _____ 9. During this stage of mitosis, the...Ch. 4 - _____ 10. Erythrocytes do not have a nucleus. In...Ch. 4 - Prob. 11DYBCh. 4 - Prob. 12DYBCh. 4 - Describe the passive processes of membrane...Ch. 4 - Describe the active processes of membrane...Ch. 4 - List the membrane-bound structures, and describe...Ch. 4 - Prob. 16DYBCh. 4 - Prob. 17DYBCh. 4 - Prob. 18DYBCh. 4 - Prob. 19DYBCh. 4 - Explain the processes that occur in the different...Ch. 4 - Michael was born with Tay-Sachs disease. Which of...Ch. 4 - Prob. 2CALCh. 4 - Prob. 3CALCh. 4 - Prob. 4CALCh. 4 - Prob. 5CALCh. 4 - Prob. 1CSLCh. 4 - Prob. 2CSLCh. 4 - Prob. 3CSL
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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_forwardWhich of the following statements about cellular membranes is/are FALSE? A. Only lipids move Within the membrane, while the proteins are anchored and immobile. B. Membranes are composed of lipids and proteins. C. Substances may be transported across membranes by active transport, facilitated transport or diffusion. D. Membrane proteins are classified as integral or peripheral, upon their functionarrow_forwardWhich of the following statements describes the function of plasma membranes? I. define the boundaries of the cell and its organelles and act as permeability barriers II. sites for specific biological and chemical functions III. possess transport proteins that regulate the movement of substances into and out of the cell and its organelles IV. contain protein molecules that act as receptors to detect external signals V. provide mechanisms for cell-to-cell contact, adhesion, and communication A. I and III B. I, III, IV C. I, III, IV, V D. I, II, III, IV, Varrow_forward
- Of the following organelles associated with the endomembrane system, which group is primarily imvolved in synthesizing molecules needed by the cell:? Select one or more a. Smooth endoplasmic reticulum, ribosome vacuole b. Ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum c Rough endoplasmic reticulum, lysosoroe, vacuole d. Vacuole, rough endoplasmic reticulum, smooth endoplasmic reticulum e Lysosome, vacuole, ribosome DOOOarrow_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_forwardChoose which substances cannot pass through the phospholipid bilayer of the plasma membrane. A. Gasses B. Charged molecules C. Hydrophobic molecules D. Lions E. Water F. ATParrow_forward
- Which of the following is not a function of the extracellular matrix Select one: A. Prevents the loss of water when cells are placed in a hypertonic solution. B. Assists in the movement of substances across the plasma membrane. C. Has numerous functions that affect the shape and activities of the cell that produced it. D. Takes place in reception of 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_forwardWhich of the following can enter the cell by diffusion through the plasma membrane? A. salts B. glucose C. phospholipids D. carbon dioxidearrow_forward
- Indicate whether the following statements are true or false. If a statement is false, explain why it is false. a. All types of cells contain cell walls, but only some cell types possess plasma membranes. b. The distribution of specific lipids to the inner and outer leaflet is asymmetrical, or biased, in plasma membranes. C. Lateral diffusion is the movement of lipids from one layer of the membrane to the other. d. Fatty acids tails are used to embed integral, transmembrane proteins in the plasma membrane.arrow_forwardState 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 Filamentsarrow_forwardPlasma membranes are selectively permeable. This means: A. cholesterol cannot enter B. anything can pass in and out C.the membrane regulates the passage of the material in and out of the cell D. glucose cannot enter the cellarrow_forward
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