Question

the difference in an area with high concentration and an area with low concentration is called
multiple choice
○ the variant.
○ the osmotic pressure.
○ level gradient.
○ the concentration gradient.
○ turgid pressure.

Explanation:

To solve this, we analyze each option:

• "the variant" refers to a different form, not related to concentration difference.
• "the osmotic pressure" is the pressure required to stop osmosis, not the concentration difference itself.
• "level gradient" is not a term related to concentration differences in this context.
• "the concentration gradient" is defined as the difference in concentration between an area of high concentration and an area of low concentration.
• "turgid pressure" (turgor pressure) is the pressure exerted by fluid in a cell, not related to concentration difference between areas.

Answer:

D. the concentration gradient