Osmosis (GCSE Biology)

A red blood cell is placed in a concentrated salt solution. What is the immediate osmotic effect?

A student calculates percentage change in potato mass using: percentage change = (change in mass / original mass) × 100. If original mass = 5.0 g and final mass = 4.6 g, which is the correct percentage change?

Which description matches an isotonic condition for cells in a solution?

Which microscope technique would best let you see plasmolysed plant cells?

In the context of osmosis, what does a negative percentage change in mass indicate?

Which of the following best describes why plant tissues have a large vacuole during osmosis experiments?

You place a potato cube in a sugar solution and after 1 hour its mass is unchanged. Which is the best interpretation?

Which organ in humans uses osmosis as a key part of its function in regulating water balance?

Which process is not involved in osmosis experiments with plant tissues?

If you wish to find the concentration of solution that is isotonic to potato cells using a graph, what would you do?

A student finds mean percentage mass changes at concentrations: 0.0M +10%, 0.1M +8%, 0.2M +4%, 0.3M 0%, 0.4M -5%. Which concentration is approximately isotonic to the potato?