Transport in Plants

Question 1

what is the partially permeable memberane called in a dialysis machine

Answer 1

The partially permable membrane found in dialysis machines is a Visking tubing

Question 2

what osmosis

Answer 2

Osmosis - the net movement of water particles from an area of higher water potential to an area of lower water potential, through a partially permeable membrane

Question 3

what is the difference in osmosis between and plant and animal cell

Answer 3

Placing a plant cell in water vs an animal cell gives different cells as plants have a cell wall - this means that when lots of water moves in, a plant cell can reach a state of turgor, whereas an animal cell will burst

Question 4

what is lysis

Answer 4

When an animal cell bursts, it is called cell lysis

Question 5

what is turgor

Answer 5

Turgor (cell swollen with water)= when water moves into the plant cell, and the vacuole swells up, causing the cell membrane to push against the cell wall

Question 6

what happens when an animal cell is placed in salty solution

Answer 6

When placed in a very salty solution, an animal cell will shrink/shrivel upl

Question 7

what are the stages of when a plant loses water

Answer 7

A plant cell has two stages dependent on how much water it loses, flaccid and plasmolysed

Question 8

what is flaccid

Answer 8

First stage = flaccid –> cell overall has less volume, and the cell membrane is not pushing against the cell wall (with this you would see a plant wilting)

Question 9

what is plasmolysed

Answer 9

Second stage = plasmolysed –> cytoplasm splits away from the cell wa

Question 10

how does a plant wilting