Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 3, Problem 10RQ
Which plasma membrane component can be either found on its surface or embedded in the membrane structure?
a. protein
b. cholesterol
c. carbohydrate
d. phospholipid
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Which plasma membrane component can be eitherfound on its surface or embedded in the membranestructure?a. proteinb. cholesterolc. carbohydrated. phospholipid
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
What is the chemical nature of membrane components that enable cells to move substances in and out of the cell?
a. glycolipids
b. proteins
c. phospholipids
d. lipids
Chapter 3 Solutions
Concepts of Biology
Ch. 3 - Figure 3.7 What structures does a plant cell have...Ch. 3 - Figure 3.13 Why does the cis face of the Golgi not...Ch. 3 - Figure 3.22 A doctor injects a patient with what...Ch. 3 - When viewing a specimen through a light...Ch. 3 - The ____________ is the basic unit of life. a....Ch. 3 - Which of these do all prokaryotes and eukaryotes...Ch. 3 - A typical prokaryotic cell ________ compared to a...Ch. 3 - Which of the following is found both in eukaryotic...Ch. 3 - Which of the following is not a component of the...Ch. 3 - Which plasma membrane component can be either...
Ch. 3 - The tails of the phospholipids of the plasma...Ch. 3 - Water moves via osmosis _______. a. throughout the...Ch. 3 - The principal force driving movement in diffusion...Ch. 3 - Active transport must function continuously...Ch. 3 - What are the advantages and disadvantages of...Ch. 3 - Describe the structures that are characteristic of...Ch. 3 - In the context of cell biology, what do we mean by...Ch. 3 - Why is it advantageous for the cell membrane to be...Ch. 3 - Why does osmosis occur?Ch. 3 - Where does the cell get energy for active...
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- Which macromolecule is NOT digested by the lysosome? A. Proteins B. Nucleic acids C. Polysaccharides D. Phospholipids E. Nonearrow_forwardComponent of the plasma membrane that is responsible for cell signaling? a Proteins b Carbohydrates c Phospholipid d Cellulosearrow_forwardThe structure (consisting of a fatty-waxy substance) which separates the intracellular compartment from the extracellular compartment is called the Cell Membrane; what are the fundamental molecules that compose the Cell Membrane? 48. A. Carbohydrates and Proteins B. Carbohydrates and ATP C. Phospholipids and Proteins D. ATP and Phospholipidsarrow_forward
- Which One is NOT TRUE about membranes? a. Membranes rich in fatty acids containing one or more double bonds are more fluid than membranes with no double bonds in fatty acids. b. If cholesterol is present in membranes, the fluidity of membranes will be reduced at moderate and warm temperatures. c. If cholesterol is present in membranes, the fluidity will remain intact at low temperatures. d. If the fatty acids with double bond are present in membranes, the membrane will be viscous.arrow_forwardCollagen represents which level of protein organization? a. Secondary b. All of the options are correct c. Tertiary d. Primary e. Quaternaryarrow_forwardThe diffusion of water across a selectively permeable membrane is called? A. Active transport B. Facilitated diffusion C. Osmosis D. Cell membranearrow_forward
- Which functions are carried out by smooth endoplasmic reticulum? A. Makes phospholipids and stores calcium B. Breaks down cellular wastes and debris via enzymes C. Modifies polypeptides and lipids then sorts and packages the finished products into vesicles D. Folds and modifies proteins and polypeptides via surface ribosomesarrow_forwardWhich is incorrect about the plasma membrane? a. It has a hydrophobic interior and hydrophilic region that faces water. b. Cholesterol affects the fluid nature of the membrane. c. Proteins embedded in the lipid bilayer do not move. d. It surrounds all living cellsarrow_forwardWhich process uses special proteins on the surface of the membraneto identify specific molecules for transport into the cell?a. phagocytosisb. pinocytosisc. receptor-mediated endocytosisd. exocytosisarrow_forward
- Cell membranes are composed of a lipid bilayer. How does the type of lipid bilayer affect its properties?arrow_forwardExplain the structure of cell membrane. If it is not bi-layer (only one layer of lipid) what may happened?arrow_forwardWhich process does not require cellular energy (and thus, it is a passive process)? a. primary active transport. b. carrier-mediated facilitated diffusion. c. endocytosis. d. exocytosis.arrow_forward
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