Homework Answers
A. Due to the hydrophobic nature of the lipids in cell membranes, polar molecules (such as water) cannot diffuse across. But they diffuse across the membrane through transport proteins (facilitated diffusion)
B. The Sodium-Potassium Pump is an active transport is the energy-requiring process of pumping molecules and ions across membranes against a concentration gradient
C. Glucose transport is also an active transport
D. Osmosis is passive transport, occurs according to the concentration gradient of water across the membrane
Answer is Option B
Add Answer to:
QUESTION 32 Which of the following is an example of a gradient-driven active transporter A. Aquaporin...
QUESTION 32 Which of the following is an example of a gradient-driven active transporter O A...
QUESTION 32 Which of the following is an example of a gradient-driven active transporter O A Aquaporin water transport B. Na+K+ ATPase glucose permease transport D. Osmosis E. Na glucose symport F. All of these answers are correct G. None of these answers are correct
Question 33 2.5 pts The Na+-K+ ATPase transporter found in the plasma membrane of most animal...
Question 33 2.5 pts The Na+-K+ ATPase transporter found in the plasma membrane of most animal cells gets its energy from: ATP hydrolysis The electrochemical gradient across the membrane O Co-transport of H+ into the cell None are correct, this transporter functions by facilitated diffusion All are correct
Choose the item in column 2 that best matches each item in column 1. You may...
Choose the item in column 2 that best matches each item in column 1. You may use a column 2 item more than once. A requires direct ATP hydrolysis CO2, O2, H20 driven by an ion gradient - A active transport and indirect active transport transports glucose across membranes Bindirect active transport B. Na glucose symport facilitated diffusion (passive transport) Na */ ATPase pump D, active transport F. transports small, nonpolar molecules facilitated diffusion and active transport A F. simple...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a solute-specific protein carrier Facilitated diffusion transports solute against its’ concentration gradient Which of the following is TRUE about primary active cell membrane transport? It is a form of transport that requires a protein “pump” It is a form of transport that transports ions and/or solute against their concentration gradient It is a transport mechanism that requires energy released from the splitting of ATP by...
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters...
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters the cell with each glucose molecule, and while the glucose transporter does not hydrolyze ATP, it depends on a pre-existing gradient of Na+ ions that is created by the Na+/K+ ATPase. This is an example of ____________. A. primary active uniport B. secondary active antiport C. primary active symport D. secondary active symport 2) Which statement is FALSE? A. Acetyl CoA is oxidized to...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
QUESTION 2 Which of the following is NOT an example of facilitated diffusion O A. lon...
QUESTION 2 Which of the following is NOT an example of facilitated diffusion O A. lon channel transport. OB. All of these answers are examples of facilitated diffusion O C. Glucose transport by GLUT1. O D. None of these answers are examples of facilitated diffusion OE. Aquaporin transport. OF. Oxygen transport.
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The...
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The inside of a normal cell is ___________________ (+/-); while the outside is ___________(+/-). The resting membrane potential of a neuron is ___________mV. Diagram the relative ratios of Ca++, Na+ and K+ in a cell under resting conditions. Draw an arrow for each of the molecules indicating which direction would be passive transport (into or out of the cell). For each of the following sentences, fill in...
10) Which of the following is NOT an example of facilitated diffusion? A) GLUTI glucose transporter...
10) Which of the following is NOT an example of facilitated diffusion? A) GLUTI glucose transporter B) anion exchange protein C) aquaporins D) channel proteins E) oxygen transport Select the correct answer from the above choices? Explain your answer?
Consider a secondary active transporter that uses symport for two molecules, X and Y. If X...
Consider a secondary active transporter that uses symport for two molecules, X and Y. If X is the molecule being actively pumped and Y is present in higher concentration inside the cell, which of the following is true? (It might be helpful to sketch out the situation to visualize it better.) Xis present at higher concentrations inside the cell. X is being pumped from outside the cell into the cell. Xis present at higher concentrations outside the cell. Y is...
QUESTION 32 Which of the following is an example of a gradient-driven active transporter O A Aquaporin water transport B. Na+K+ ATPase glucose permease transport D. Osmosis E. Na glucose symport F. All of these answers are correct G. None of these answers are correct
Question 33 2.5 pts The Na+-K+ ATPase transporter found in the plasma membrane of most animal cells gets its energy from: ATP hydrolysis The electrochemical gradient across the membrane O Co-transport of H+ into the cell None are correct, this transporter functions by facilitated diffusion All are correct
Choose the item in column 2 that best matches each item in column 1. You may use a column 2 item more than once. A requires direct ATP hydrolysis CO2, O2, H20 driven by an ion gradient - A active transport and indirect active transport transports glucose across membranes Bindirect active transport B. Na glucose symport facilitated diffusion (passive transport) Na */ ATPase pump D, active transport F. transports small, nonpolar molecules facilitated diffusion and active transport A F. simple...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
QUESTION 2 Which of the following is NOT an example of facilitated diffusion O A. lon channel transport. OB. All of these answers are examples of facilitated diffusion O C. Glucose transport by GLUT1. O D. None of these answers are examples of facilitated diffusion OE. Aquaporin transport. OF. Oxygen transport.
10) Which of the following is NOT an example of facilitated diffusion? A) GLUTI glucose transporter B) anion exchange protein C) aquaporins D) channel proteins E) oxygen transport Select the correct answer from the above choices? Explain your answer?
Consider a secondary active transporter that uses symport for two molecules, X and Y. If X is the molecule being actively pumped and Y is present in higher concentration inside the cell, which of the following is true? (It might be helpful to sketch out the situation to visualize it better.) Xis present at higher concentrations inside the cell. X is being pumped from outside the cell into the cell. Xis present at higher concentrations outside the cell. Y is...
Most questions answered within 3 hours.
-
(Expected rate of return and risk) Carter Inc. is evaluating a
security. Calculate the investment’s expected...
asked 48 minutes ago -
What specific indicators can point to lack of progress for
African Americans in American society?
asked 1 hour ago -
1-The Electrons in a beam are moving at 2.7×108 m/s in an
electric field of 15000...
asked 2 hours ago -
A gas tank is a vertical cylinder. It has a radius of 1m, a
height of...
asked 2 hours ago -
Accent Software faces the following conditions. All of these
support Accent’s use of a market-penetration pricing...
asked 3 hours ago -
A mathematically inclined friend emails you the following
instructions: "Meet me in the cafeteria the first...
asked 3 hours ago -
A monopoly sells in two countries . The demand curves in the two
countries are p1...
asked 4 hours ago -
A .15kg rubber ball is bounced off a wall. Before hitting the
wall, the ball moves...
asked 5 hours ago -
A manufacturing company preparing to build a new plant is
considering three potential locations for it....
asked 5 hours ago -
B. If compound Y has approximately the same values of solubility
in toluene as compound X,...
asked 5 hours ago -
Oscar Inc. has inventory in Japan valued at 39,051,000 Yen one
year ago. One year ago...
asked 6 hours ago -
If Canada suffered from "fundamental disequilibrium," and its
government choose not to devalue its currency, a...
asked 6 hours ago