Studied by 6 people
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
Note
Flashcard