Y9 biology revision

Question 1

What is a eycaryotic cell

Answer 1

an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus.

Question 2

What is a prokaryotic cell

Answer 2

A prokaryotic is a single-cell organism whose cell lacks a nucleus and other membrane-bound organelles

Question 3

What is turgid

Answer 3

Turgid means swollen and hard. The pressure inside the cell rises, eventually the internal pressure of the cell is so high that no more water can enter the cell. This liquid or hydrostatic pressure works against osmosis.

Question 4

What is flaccid

Answer 4

Describing plant tissue that has become soft and less rigid than normal because the cytoplasm within its cells has shrunk and contracted away from the cell walls through loss of water

Question 5

How should you set up a graph

Answer 5

Use the right amount of space in the graph

Question 6

How to calculate magnification

Answer 6

Do it then remember to put it I the format asked(cm M mm)

Question 7

Why do leaves have a big surface area

Answer 7

So they can respirate faster

Question 8

Do root hair cells have a large surface area

Answer 8

Yes

Question 9

What stops plant cells from bursting

Answer 9

The cell wall

Question 10

Why does a animal cell swell up