Osmosis and plant transport

What is osmosis?

Water molecules move from an area of high concentration to an area of low concentration by osmosis

This done through a..

Selectively permeable membrane

What is a selectively permeable membrane

Allows small substances through but prevents large substances

What does osmosis in cells depend on

Concentration of water around it

What happens if water moves into an animal cell

Cell membrane stretches and gets bigger

When water moves into a plant cell what gets bigger

vacuole

When the vacuole gets bigger what pushes against what

Cell membrane against the cell wall

What is turgid

Enlargered /swollen with water

What happens when plant cells are in dilute solutions

Plant cell increase in size and water moved into the plant

What happens when plant cells are in a concentrated solution

Decrease in size vacuole gets smaller cell membrane peels away from cell wall . Cell looses water as water moves out cell becomes Flacid and plasmalised

What happens if water moves I into an animal cell

Cell membrane stretches and gets bigger

It a cell bursts what is it called

Lysis

When water moves into a plant cell what gets bigger

vacuole

What is transpiritation

A process by which water evaporates from spongy mesophyll cells and diffuses out through open stomata in plant leaves

What do plants use water for

Photosynthesis, transporting minerals, support

Factors that affect transpiritation

Temperature, wind, humidity, light intensity , surface area