Osmosis Flashcards Preview

Biology > Osmosis > Flashcards

Flashcards in Osmosis Deck (11):
1

What is osmosis?

Osmosis is the diffusion of water from a high to low concentration

If there is a low solute level but a high water level the water diffuses

2

What is diffusion?

Diffusion is the spreading out / movement of particles from a high concentration to a low concentration

3

Which out of Diffusion, Osmosis and Active Transport requires carrier proteins?

Active Transports requires carrier proteins because it moves from a low to high concentration

4

What is Active Transport?

Active transport is diffusion from a low concentration to a high concentration

It needs carrier proteins and energy to move up / against the concentration gradient

5

What scientific word do we use to describe a *swollen* red blood cell?

We call a *swollen* red blood cell TURGID

A red blood cell becomes turgid when water is diffused into it via osmosis (because of a low concentration of water inside the RBC)

6

What scientific word do we use to describe the process of a Red Blood Cell *shrinking*?

We use the word CRENATION to describe the process of a Red Blood Cell *shrinking*

Cremation is the process of Shrinking

This occurs when there is a high concentration of water in the RBC and it diffuses out

7

What is likely to occur when a Red Blood Cell swells and becomes Turgid? (Beginning with an H)

Haemolysis can occur when a RBC swells and becomes Turgid.

Haemolysis is the splitting of a RBC

Haemolysis = Human
H=H

8

What is likely to occur when a Plant Cell shrivels and Crenates when it loses water? (Beginning with an P)

Plasmolysis is likely to occur when a Plant Cell Shrivels and Crenates when it loses water

It is when the protoplast of a plant call contracts as a result of loss of water

9

What is a solvent?
What is a solute?

A solvent is the liquid in which x dissolves

A solute is x(which dissolves)

10

What are the concentration levels in a *Hypotonic* solution?

There is a low concentration of solutes and a high concentration of water in a *Hypotonic* solution

Low concentration of solutes = High concentration of water

11

What are the concentration levels in a *Hypertonic* solution?

There is a high concentration of solutes and a low concentration of water in a *Hypertonic* solution

High concentration of solutes = Low concentration of water