The energy for __________ transport comes from the gradient of the thing being transported.
A) active
B) facilitated
C) passive
D) pumped
E) ATP-mediated
A) passive transport.
The energy for passive transport comes from the kinetic energy of the molecules being transported across the gradient. Here molecules move from a higher concentration gradient to a lower concentration gradient and energy is due to entropy of the molecules.
Active transport uses Cellular energy ATP.
Facilitated diffusion does not require any energy like passive.
The energy for __________ transport comes from the gradient of the thing being transported. A) active...
A correct distinction between facilitated diffusion and active transport of a substance across a biological membrane is that . . . A. active transport requires conformational changes in the transport protein associated with the transport process, and facillitated diffusion does not. B. active transport requires integral membrane protein to carry out the transport, and facillitated diffusion does not. C. facilitated diffusion depends on an existing energy gradient acting on the transported substance, while active transport makes such a gradient. D....
QUESTION 20 Both passive transport and active transport A. require solutes to be transported down their concentration gradients. B. can concentrate solutes on one side of a membrane. C. require ATP-driven protein pumps. D. None of these answers are correct E. require proteins to facilitate transport.
QUESTION 20 Both passive transport and active transport A. require solutes to be transported down their concentration gradients. B. can concentrate solutes on one side of a membrane. C. require ATP-driven protein pumps. OD. None of these answers are correct E. require proteins to facilitate transport.
Calcium ions move out of the cell against a concentration gradient. What drives this active transport? a) vesicles fusing with the membrane b) receptor-mediated exocytosis c) diffusion d) hydrolysis of ATP
What is the critical difference between passive and active transport? A. passive requires energy but active does not B. passive requires no energy, but active does C. passive and active each require energy, but passive requires less What is an enzyme? A. a protein that facilitates a reaction B. a protein that supplies water for hydrolysis reactions C. a protein that absorbs water during dehydration reactions The First Law of Thermodynamics states: A. energy can be changed from one form...
How can dissolved materials be moved from the outside to the inside of a cell when the inside concentration of the material is higher than the outside concentration? a. Molecules can be moved into a cell against their concentration gradient if that transport is coupled with osmotic transport of water into the cell. b. Substances can be moved against a concentration gradient by pumps that do work using the energy provided by ATP hydrolysis. c. Some channels are capable of...
Which can power the active transport of a molecule? Choose all correct answers. The energy of ATP hydrolysis. The energy released by a second (different) molecule moving from high concentration to low concentration. The inherent energy released by the molecule being transported moving from high concentration to low concentration Question 2 1 pts Which of the following types of membrane diffusion happens slower? Transverse diffusion Lateral diffusion
moving a large molecule such as glucose against its own concentration gradient and in the opposite direction of passive diffusion of NA+ is Moving a large molecule such as glucose against its own concentration gradient and in the opposite direction of passive diffusion of Natis: Co-Transport B. Facilitated Diffusion c Primary Active Transport Counter-Transport
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
Facilitated diffusion: A) transports solute up its concentration gradient. B) transports solute down its concentration gradient. C) does not require a transport protein. D) requires ATP hydrolysis for transport to occur.