Where is the site of thiamin absorption through active transport and passive diffusion
Where is the site of thiamin absorption through active transport and passive diffusion
After absorption, niacin enters the cell wall by _____________________. active diffusion both active and passive diffusion passive diffusion inactive transport
13. Absorption of chemicals through the skin takes place only by passive diffusion - TRUE or FALSE? (2 points)
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...
How do bulk, active, and passive transport move drugs through the body and into the brain
Oxygen and carbon dioxide enter and exit cell membranes by a) active transport b) facilitated diffusion c) passive diffusion d) antiport
List and compare different forms of passive transport and active transport.
10. In a given molecule which are the determinants for its transport through a membrane (active/passive/receptor mediated etc.)? Explain in detail. (5 points)
What is the difference between passive and active transport? Provide an example of a transport protein involved in the passive transport of K+, and one protein involved in the active transport of K+ across the plasma membrane and explain the direction of the flow of K+ in each case (from inside the cell to the outside, or from the outside of the cell to the inside). Also explain for each of your examples if the transport is uniport, symport, or...
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....
Which type of membrane transport protein can perform either passive or active transport? Choose one: A. transporters B. channels C. both channels and transporters D. Neither type of membrane transport protein can perform both passive and active transport.