Biology 006 - General Biology I » Spring 2021 » Chapter 7 Membrane Structure and Function In Class Quiz

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Question #1
Match the term and its description. fluid mosaics model
A.   saturated fatty acids, unsaturated fatty acid and cholesterol
B.   binding of specific solutes to receptors triggers vesicle formation
C.   This model states that the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids
Question #2
Match the term and its description. lipids
A.   saturated fatty acids, unsaturated fatty acid and cholesterol
B.   also called cell drinking, molecules dissolved in droplets are taken up when extracellular fluid is "gulped" into tiny vesicles
C.   Proteins are bound to the surface of the membrane
Question #3
Match the term and its description. peripheral proteins
A.   Membranes have distinct inside and outside faces
B.   transport vesicles migrate to the membrane, fuse with it, and release their contents outside the cell
C.   Proteins are bound to the surface of the membrane
Question #4
Match the term and its description. carbohydrates
A.   This is the tendency for molecules to spread out evenly into the available spaces
B.   A coupled active transport by a membrane protein. It occurs when active transport of a solute indirectly drives transport of other substance
C.   Membranes have distinct inside and outside faces
Question #5
Match the term and its description. diffusion
A.   a transport protein that generates voltage across a membrane
B.   This is the tendency for molecules to spread out evenly into the available space
C.   the diffusion of a substance across a biological membrane without the expenditure of energy
Question #6
Match the term and its description. passive transport
A.   The voltage across a membrane
B.   the diffusion of a substance across a biological membrane without the expenditure of energy
C.   This is the ability of a surounding solution to cause a cell to gain or lose water
Question #7
Match the term and its description. tonicity
A.   This transport requires energy, usually in the form of ATP hydrolysis, to move substance against their concentration gradients
B.   This is the ability of a surrounding solution to cause a cell to gain or lose water
C.   the control of solute concentartion and water balance, is a necessary adaptation for life in such environments
Question #8
Match the term and its description. osmoregulation
A.   These ion channels open or close in response to a stimulus
B.   the control of solute concentrations and water balance, is a necessary adaptation for life in such environments
C.   the membrane pulss away form cell wall, causing the plant to wilt
Question #9
Match the term and its description. plasmolysis
A.   This is type of passive transport aided by chanel proteins and carrier proteins
B.   The voltage across a membrane
C.   the membrane pulls away from cell wall, causing the plant to wilt
Question #10
Match the term and its description. facilitated diffusion
A.   the membrane pulss away form cell wall, causing the plant to wilt
B.   These ion channels open or close in response to a stimulus
C.   This is type of passive transport aided by channel proteins and carrier proteins
Question #11
Match the term and its description. gated channels
A.   These ion channels open or close in response to a stimulus
B.   the control of solute concentartion and water balance, is a necessary adaptation for life in such environments
C.   This transport requires energy, usually in the form of ATP hydrolysis, to move substance against their concentration gradients
Question #12
Match the term and its description. active transport
A.   The voltage across a membrane
B.   This transport requires energy, usually in the form of ATP hydrolysis, to move substance against their concentration gradients
C.   This is the ability of a surounding solution to cause a cell to gain or lose water
Question #13
Match the term and its description. membrane potential
A.   the diffusion of a substance across a biological membrane without the expenditure of energy
B.   The voltage across a membrane
C.   a transport protein that generates voltage across a membrane
Question #14
Match the term and its description. an electrogenic pump
A.   A coupled active transport by a membrane protein. It occurs when active transport of a solute indirectly drives transport of other substance
B.   This is the tendency for molecules to spread out evenly into the available spaces
C.   a transport protein that generates voltage across a membrane
Question #15
Match the term and its description. cotransport
A.   transport vesicles migrate to the membrane, fuse with it, and release their contents outside the cell
B.   Membranes have distinct inside and outside faces
C.   A coupled active transport by a membrane protein. It occurs when active transport of a solute indirectly drives transport of other substances
Question #16
Match the term and its description. exocytosis
A.   Proteins are bound to the surface of the membrane
B.   also called cell drinking, molecules dissolved in droplets are taken up when extracellular fluid is "gulped" into tiny vesicles
C.   transport vesicles migrate to the membrane, fuse with it, and release their contents outside the cell
Question #17
Match the term and its description. pinocytosis
A.   binding of specific solutes to receptors triggers vesicle formation
B.   also called cell drinking, molecules dissolved in droplets are taken up when extracellular fluid is "gulped" into tiny vesicles
C.   saturated fatty acids, unsaturated fatty acid and cholesterol
Question #18
Match the term and its description. receptor-mediated endocytosis
A.   This model states that the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids
B.   binding of specific solutes to receptors triggers vesicle formation
C.   the diffusion of a substance across a biological membrane without the expenditure of energy

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