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How does the villus help to maintain a concentration gradient for absorption of digested food substances?
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Do substances in diffussion move with the concentration gradient?
no. High concentration to low concentration. The molecules move down the concentration gradient.
In which type of process do substances move down their concentration gradient across the membrane?
Active transport is a process that removes substances from a cell against the concentration gradient. The molecules move from low concentration to high concentration during this process.
What does it means if a substance moves down its concentration gradient?
If a substance moves down its concentration gradient, it means that it is moving from an area where it has a high concentration to an area where it has a low concentration. This is known as diffusion.
What is the energy source for co-transport?
the movement of one of the transported substances down its concentration gradient
What is a differences in concentration called?
concentration gradient
Do substances in diffussion move with the concentration gradient?
no. High concentration to low concentration. The molecules move down the concentration gradient.
What does concentration gradient have to do with diffusion of substances across the cell membrane?
concentration gradient moves from high to low until equilibrium is reached.
What is The energy-requiring movement of materials against a concentration gradient?
Active absorption
How long does movement occur across a concentration gradient?
As long as there is a concentration gradient. This is because diffusion occurs which is the net movement of substances from a region of high concentration to a region of low concentration.
What is the process that requires cellular energy to move a substance against its concentration gradient?
Active transport uses energy to move substances against the concentration gradient.
How does difference in concentration relate to movement of substances across the membrane?
the concentration gradient will help to bring stuff into the cell and to move stuff out. Osmosis likes to move with the concentration gradient. Moving with a concentration gradient is passive transport and moving against it is active transport
How is the concentration gradient of a substance important to diffusion?
In diffusion, substances flow with a concentration gradient, meaning that they flow from areas of high concentration to areas of lower concentration. Flowing against a concentration gradient would be going from an area of low concentration to an area of higher concentration, but this only occurs in active transport.
Which cell process will remove substances against a concentration gradient?
Active transport
In which type of process do substances move down their concentration gradient across the membrane?
Active transport is a process that removes substances from a cell against the concentration gradient. The molecules move from low concentration to high concentration during this process.
What are some characteristics of facilitated diffusion?
The substances are moving from areas of high concentration to areas of low concentration with the help of a protein channel.
What is active absorption?
requires the input of energy and a carrier protein to move nutrients across a concentration gradient
What is the difference in the concentration of a substance across a space is called concentration?
Concentration Gradient
