Substance B is the right answer.
Active transport involves energy in the form of ATP. It involves the molecules movement against the concentration gradient. It means the ions move from the lower concentration to the higher concentration.
Here
| Substance | inside | outside |
| A | 3 | 5 |
| B | 5 | 2 |
| C | 2 | 3 |
Substance B is the right answer. Becuase substance B will go against the concentration gradient by utilising energy. Because ATP is required in against the gradient movement.
please rate.
KEY Substance A Substance B Substance C Who could go inside the cell via Active Transport...
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....
A small molecule that is lipid-soluble is likely to cross the cell membrane via? Osmosis, active transport, diffusion, facilitated diffusion, or group translocation?
Oxygen and carbon dioxide enter and exit cell membranes by a) active transport b) facilitated diffusion c) passive diffusion d) antiport
For a substance crossing a cell membrane, the chemical driving force Select one: a. depends only on the concentration gradient if the substance is uncharged, but also depends on the electrical force if the substance is an ion. b. is the force that pushes molecules across the membrane, but only if the substance is actively transported. c. depends only on the concentration gradient, regardless of whether or not the substance is an ion d. is the total driving force on...
During secondary active transport, the movement of one substance down its electrochemical gradient provides the force to move another substance up its electrochemical gradient. When both substances move in the same direction the mechanism is referred to as a(n) O symporter. O antiporter. O importer. O deporter.
Please summarize this chapter
typed clearly.
Diffusion Is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across a space. Facilitated transport Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins. Channels The integral proteins involved in facilitated transport are collectively referred to as transport proteins, and they...
cell biology Which of the following is an active transport mechanism? a Facilitated diffusion of potassium ions across the membrane through an open potassium channel b Movement of water into a cell c Sodium ions moving out of an animal cell bathed in physiological saline d Movement of CO2 out of a cell e None of the above
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...
In considering active transport by Na+-K+-ATPase, 3 Na+ are pumped out of the cell and 2 K+ are pumped in for each ATP that is hydrolyzed to ADP + Pi. Given a ΔG for ATP hydrolysis of -10 kcal/mol, and that V is -60 mV (more electronegative inside), and that the pump typically maintains the internal Na+ at 10mM, external Na+ at 145 mM, internal K+ at 140 mM and external K+ at 5mM, what is the efficiency of the...
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