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Bio 1 Chapter 7

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Sep 24th, 2023
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13 test answers
question
What name is given to the process by which water crosses a selectively permeable membrane? phagocytosis osmosis pinocytosis passive transport diffusion
answer
osmosis
question
A semipermeable membrane is placed between the following solutions.Which solution will decrease in volume? Solution A: 1.4% (m/v) starch Solution B: 7.62% (m/v) starch
answer
Solution A
question
A semipermeable membrane is placed between the following solutions.Which solution will increase in volume? Solution C: 9% (m/v) NaCl Solution D: 12.4% (m/v) NaCl
answer
Solution D
question
To prevent crenation or hemolysis, a cell must be placed in an isotonic solution such as 0.9% (m/v) NaCl or 5.0% (m/v) glucose. This does not mean that a cell has a 5.0% (m/v) glucose concentration; it just means that 5.0% (m/v) glucose will exert the same osmotic pressure as the solution inside the cell, which contains several different solutes.A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.Solution A: 3.21% (m/v) NaClSolution B: 1.65% (m/v) glucoseSolution C: distilled H2OSolution D: 6.97% (m/v) glucoseSolution E: 5.0% (m/v) glucose and 0.9%(m/v) NaClWhich Solution results to HEMOLYSIS?
answer
Solution B, C
question
To prevent crenation or hemolysis, a cell must be placed in an isotonic solution such as 0.9% (m/v) NaCl or 5.0% (m/v) glucose. This does not mean that a cell has a 5.0% (m/v) glucose concentration; it just means that 5.0% (m/v) glucose will exert the same osmotic pressure as the solution inside the cell, which contains several different solutes.A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.Solution A: 3.21% (m/v) NaClSolution B: 1.65% (m/v) glucoseSolution C: distilled H2OSolution D: 6.97% (m/v) glucoseSolution E: 5.0% (m/v) glucose and 0.9%(m/v) NaClWhich solution resutls to CRENATION?
answer
Solution A, D, E
question
Which of the following molecules can cross the lipid bilayer of a membrane directly, without a transport protein or other mechanism? Select all that apply. water ions proteins oxygen carbon dioxide lipids sucrose
answer
water, oxygen, carbon dioxide, lipids
question
Provides a continuous path across the membrane
answer
Channel Proteins
question
Allow water molecules and small ions to flow quickly across the membranes
answer
Channel Proteins
question
Undergo a change in shape to transport solutes across the membrane
answer
Carrier Proteins
question
Transport primarily small polar organic molecules
answer
Carrier Proteins
question
Provide a hydrophilic path across the membrane
answer
Channel and Carrier Proteins
question
Are integral membrane proteins
answer
Channel and Carrier Proteins
question
Transport solutes down a concentration or electrochemical gradient
answer
Channel and Carrier Proteins
1 of 13
question
What name is given to the process by which water crosses a selectively permeable membrane? phagocytosis osmosis pinocytosis passive transport diffusion
answer
osmosis
question
A semipermeable membrane is placed between the following solutions.Which solution will decrease in volume? Solution A: 1.4% (m/v) starch Solution B: 7.62% (m/v) starch
answer
Solution A
question
A semipermeable membrane is placed between the following solutions.Which solution will increase in volume? Solution C: 9% (m/v) NaCl Solution D: 12.4% (m/v) NaCl
answer
Solution D
question
To prevent crenation or hemolysis, a cell must be placed in an isotonic solution such as 0.9% (m/v) NaCl or 5.0% (m/v) glucose. This does not mean that a cell has a 5.0% (m/v) glucose concentration; it just means that 5.0% (m/v) glucose will exert the same osmotic pressure as the solution inside the cell, which contains several different solutes.A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.Solution A: 3.21% (m/v) NaClSolution B: 1.65% (m/v) glucoseSolution C: distilled H2OSolution D: 6.97% (m/v) glucoseSolution E: 5.0% (m/v) glucose and 0.9%(m/v) NaClWhich Solution results to HEMOLYSIS?
answer
Solution B, C
question
To prevent crenation or hemolysis, a cell must be placed in an isotonic solution such as 0.9% (m/v) NaCl or 5.0% (m/v) glucose. This does not mean that a cell has a 5.0% (m/v) glucose concentration; it just means that 5.0% (m/v) glucose will exert the same osmotic pressure as the solution inside the cell, which contains several different solutes.A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur.Solution A: 3.21% (m/v) NaClSolution B: 1.65% (m/v) glucoseSolution C: distilled H2OSolution D: 6.97% (m/v) glucoseSolution E: 5.0% (m/v) glucose and 0.9%(m/v) NaClWhich solution resutls to CRENATION?
answer
Solution A, D, E
question
Which of the following molecules can cross the lipid bilayer of a membrane directly, without a transport protein or other mechanism? Select all that apply. water ions proteins oxygen carbon dioxide lipids sucrose
answer
water, oxygen, carbon dioxide, lipids
question
Provides a continuous path across the membrane
answer
Channel Proteins
question
Allow water molecules and small ions to flow quickly across the membranes
answer
Channel Proteins
question
Undergo a change in shape to transport solutes across the membrane
answer
Carrier Proteins
question
Transport primarily small polar organic molecules
answer
Carrier Proteins
question
Provide a hydrophilic path across the membrane
answer
Channel and Carrier Proteins
question
Are integral membrane proteins
answer
Channel and Carrier Proteins
question
Transport solutes down a concentration or electrochemical gradient
answer
Channel and Carrier Proteins