ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 3, Problem 3RAC
In general, lipid-soluble molecules diffuse through the ________; small, water-soluble molecules diffuse through the ______.
a.. membrane channels, membrane channels
b. membrane channels, lipid bilayer
c. lipid bilayer, carrier proteins
d. membrane channels, carrier proteins
c. carrier proteins, membrane channels
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Students have asked these similar questions
which of the following statements is correct about the movement of water across a plasma membrane
a. it cannot pass through any ion channels
b. it moves through the membrane via mediated transport
c. even though it a polar molecule, it moves readily through the nonpolar lipid bilayer
d. artificial lipid membranes are impermeable to water
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
Which of the following is NOT a function of membrane proteins?
a.Regulate the passage of ions
b.Act as carrier molecules for various solutes
c.Act as anchors or stabilizers for the cell membrane
d.Storage of cellular nutrients
Chapter 3 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 3.1 - What parts are common to most cells?Ch. 3.1 - Explain the four characteristic functions of the...Ch. 3.2 - Which cell features can be seen with a light...Ch. 3.3 - Explain five functions of the plasma membrane.Ch. 3.3 - Prob. 5AYPCh. 3.3 - Prob. 6AYPCh. 3.3 - What are the main chemical components of the...Ch. 3.4 - Prob. 8AYPCh. 3.4 - Summarize the characteristics of the fluid-mosaic...Ch. 3.4 - Prob. 10AYP
Ch. 3.5 - Prob. 11AYPCh. 3.5 - Prob. 12AYPCh. 3.5 - What are the three classes of transport proteins?Ch. 3.5 - Describe specificity, competition, and saturation...Ch. 3.5 - Prob. 15AYPCh. 3.5 - Prob. 16AYPCh. 3.5 - Prob. 17AYPCh. 3.5 - Prob. 18AYPCh. 3.5 - Prob. 19AYPCh. 3.5 - Prob. 20AYPCh. 3.6 - Explain why the plasma membrane is selectively...Ch. 3.6 - Prob. 22AYPCh. 3.6 - Describe how the amount of solute in a solvent...Ch. 3.6 - How is the rate of diffusion affected by an...Ch. 3.6 - Prob. 25AYPCh. 3.6 - Compare isosmotic, hyperosmotic, and hyposmotic...Ch. 3.6 - Prob. 27AYPCh. 3.6 - Prob. 28AYPCh. 3.6 - What is secondary active transport? Describe how...Ch. 3.6 - Prob. 30AYPCh. 3.6 - Prob. 31AYPCh. 3.6 - Prob. 32AYPCh. 3.6 - Describe and give examples of exocytosis.Ch. 3.7 - Prob. 34AYPCh. 3.7 - Prob. 35AYPCh. 3.7 - List and describe the functions of microtubules,...Ch. 3.7 - What are cytoplasmic inclusions? Give several...Ch. 3.8 - Define organelles. Are oil orgonelles found in oil...Ch. 3.8 - Describe the structure of the nucleus and the...Ch. 3.8 - Prob. 40AYPCh. 3.8 - Prob. 41AYPCh. 3.8 - Prob. 42AYPCh. 3.8 - What molecules combine to form ribosomes? Where...Ch. 3.8 - Prob. 44AYPCh. 3.8 - Prob. 45AYPCh. 3.8 - What are the functions of the rough endoplasmic...Ch. 3.8 - Prob. 47AYPCh. 3.8 - Relate the structure and function of the Golgi...Ch. 3.8 - Prob. 49AYPCh. 3.8 - Prob. 50AYPCh. 3.8 - Prob. 51AYPCh. 3.8 - Prob. 52AYPCh. 3.8 - What are the structure and function of...Ch. 3.8 - Describe the structure of a mitochondrion. How...Ch. 3.8 - What enzymes are found on the cristae? In the...Ch. 3.8 - What is the centrosome? Relate the structure of...Ch. 3.8 - What are spindle fibers? Explain the relationship...Ch. 3.8 - Prob. 58AYPCh. 3.8 - Prob. 59AYPCh. 3.9 - Prob. 60AYPCh. 3.9 - Prob. 61AYPCh. 3.9 - Prob. 62AYPCh. 3.9 - Prob. 63AYPCh. 3.9 - Prob. 64AYPCh. 3.9 - Prob. 65AYPCh. 3.9 - Prob. 66AYPCh. 3.9 - Place the steps of translation in sequence. In...Ch. 3.9 - Prob. 68AYPCh. 3.9 - State two ways the cell controls what part of DNA...Ch. 3.10 - Describe the cell’s activities during the G1, S....Ch. 3.10 - Prob. 71AYPCh. 3.10 - Prob. 72AYPCh. 3.10 - Prob. 73AYPCh. 3.10 - Differentiate among chromot in, chromcitids, and...Ch. 3.10 - Prob. 75AYPCh. 3.10 - Prob. 76AYPCh. 3.10 - Prob. 77AYPCh. 3.11 - Prob. 78AYPCh. 3 - In the plasma membrane, _____ form(s) the lipid...Ch. 3 - Which of the following functioning proteins are...Ch. 3 - In general, lipid-soluble molecules diffuse...Ch. 3 - Small pieces of matter, and even whole cells, can...Ch. 3 - The rate of diffusion increases if the a....Ch. 3 - Concerning the process of diffusion, at...Ch. 3 - Prob. 7RACCh. 3 - Prob. 8RACCh. 3 - Which of these statements about facilitated...Ch. 3 - Which of these statements concerning the symport...Ch. 3 - A white blood cell ingests solid particles by...Ch. 3 - Given these characteristics: (1) requires energy...Ch. 3 - Cytoplasm is found a. in the nucleus. b. outside...Ch. 3 - Which of these elements of the cytoskeleton is...Ch. 3 - A large structure, normally visible in the nucleus...Ch. 3 - A cell that synthesizes large amounts of protein...Ch. 3 - Which of thes organelles produces large amounts of...Ch. 3 - Prob. 18RACCh. 3 - A portion of an mRNA molecule that determines one...Ch. 3 - In which of these organelles is m RNA synthesized?...Ch. 3 - During the cell cycle, DNA replication occurs...Ch. 3 - Given the following activities: Repair Growht...Ch. 3 - Apoptosis Is a programmed cell death. Removes...Ch. 3 - Prob. 1CTCh. 3 - Prob. 2CTCh. 3 - Prob. 3CTCh. 3 - Prob. 4CTCh. 3 - Luke started a training program at the beginning...Ch. 3 - Prob. 6CT
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- In 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 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_forwardMark 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 placearrow_forward
- Choose 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_forwardMultiple choice: ______1. Which of the following would not normally diffuse through the lipid bilayer of plasma membrane? a. carbon dioxide b. amino acid c. starch d. water ______2. which of the following is not a function of plasma membrane? a. absoprtion of materials b. enzymatic activity c. signal transduction d. transport processess ________3. which of the following elements is added to carbon, hydrogen and oxygen to form amino acids? a.nitrogen b. sulfur c. phosphorous d. calcium _______4. what type of blood is formed between monosaccharides in forminb polysaccharides? a. glycosidic linkages b. hydrogen bond c. nitrogen bond d. phosphodiester bonds _____5. which of the following is not found in animals? a. cellulose b. chitin c. glycogen d. proteins ______6. which element forms part of nucleic acids? a. carbon b. hydrogen c. nitrogen d. phosphorous _______7. which is not a role of carbohydrates? a. storage molecules b. transport…arrow_forward1. Passive transport of molecules is determined by the concentrations gradient of such molecules A. True B. False 2. Plasmalemma is the same as the plasma membrane A. True B. False 3. Phospholipids are always oriented so that their polar head faces the calcium ions A. True B. False 4. Which of these is not a function of the lipid bilayer? A. Changes the temperature B. Provides a flexible matrix C. Imposes a barrier to permeability 5. Which of these is not true about enzymes? A. Most of them are proteins B. Are changed at the end of the reaction C. Can only speed up the rate of the reaction D. Very specific in function E. Work better in specific mediumarrow_forward
- According 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 of the following does not apply to lipid asymmetry? a.It arises in the endoplasmic reticulum. b.It arises due to the flip-flop movement of specific phospholipids to the cytosolic monolayer. c.It is preserved throughout vesicular transport. d.It depends on the activity of flippase.arrow_forwardWhich of following statements is true? A. Polar molecules cannot simply diffuse across the cell membrane. B. Non-polar molecules cannot simply diffuse across the cell membrane C. Polar molecules cannot enter the extracellular space. D. Non-polar molecules cannot enter the extracellular space.arrow_forward
- Phospholipids can move from one leaflet (layer) to the other in a cell membrane bilayer by A. increased diffusion B. flippases and floppases. C. lateral diffusion. D. biosynthesis. Diffusion of membrane proteins was demonstrated by fusing human cells and mouse cells that had membrane proteins labeled with ________ of different colors. A. stained lipids B. fluorescent dyes C. radioactivity D. EPR detectable spin labelsarrow_forwardThe plasma membrane of a cell is composed of a ________ ________ and regulates molecular passage via _______ ________. a. potassium bilayer, unidirectional diffusion b. phospholipid bilayer, selective permeability c. phospholipid bilayer, random permeability d. protein wall, osmotic pumpsarrow_forwardIn general, lipid-soluble molecules diffuse through the ;small, water-soluble molecules diffuse through the .a. membrane channels, membrane channelsb. membrane channels, lipid bilayerc. lipid bilayer, carrier proteinsd. membrane channels, carrier proteinse. carrier proteins, membrane channelsarrow_forward
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