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AP Bio Insta-Review Topic 2.8*: Tonicity & Osmoregulation

AP Bio Insta-Review Topic 2.8*: Tonicity & Osmoregulation

Assessment

Flashcard

Science, Biology

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Tonicity?

Back

Tonicity refers to the ability of a surrounding solution to cause a cell to gain or lose water. It is determined by the concentration of solutes in the solution compared to the concentration of solutes inside the cell.

2.

FLASHCARD QUESTION

Front

Define Osmoregulation.

Back

Osmoregulation is the process by which organisms regulate the water and solute concentrations in their bodies to maintain homeostasis.

3.

FLASHCARD QUESTION

Front

What happens to a plant cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the plant cell, causing it to lose turgor pressure and become plasmolyzed.

4.

FLASHCARD QUESTION

Front

What is the pressure potential in a turgid plant cell?

Back

The pressure potential in a turgid plant cell is positive due to the pressure exerted by the cell wall against the cell's internal pressure.

5.

FLASHCARD QUESTION

Front

How does solute concentration affect water potential?

Back

The higher the solute concentration, the lower the water potential, as water moves from areas of high water potential to low water potential.

6.

FLASHCARD QUESTION

Front

What is a hypertonic solution?

Back

A hypertonic solution is one that has a higher solute concentration compared to another solution, leading to water moving out of the cell.

7.

FLASHCARD QUESTION

Front

What is an isotonic solution?

Back

An isotonic solution has equal solute concentrations inside and outside the cell, resulting in no net movement of water.

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