Chapter 1 Cells and organisation

Question 1

nm-> micro m-> mm-> cm->m->km

Answer 1

/1000->/1000->/10->/100->/1000

Question 2

km-> m->cm-> mm-> micro m-> nm

Answer 2

x1000->x100-> x10->x1000->x1000

Question 3

What does a plant cell contain.

Answer 3

Cell membrane
Ribosomes 
Cell wall or cellulose 
Mitochondria
Cytoplasm
Permanent vacuole
Chloroplasts 
Nucleus

Question 4

What does an animal cell contain

Answer 4

Cell membrane 
Ribosomes 
Mitochondria
Cytoplasm 
Nucleus

Question 5

What is a Cell membrane function

Answer 5

controls what enters and leaves the cell

Question 6

What is a Cytoplasm function

Answer 6

site of chemical reactions

Question 7

what is the function of a Nucleus

Answer 7

contains the genetic material (DNA)

Question 8

What is the function of a Ribosome

Answer 8

site of protein synthesis

Question 9

What is the function of Mitochondria

Answer 9

This is the site of respiration.

Question 10

What is the function of Cellulose or cell wall

Answer 10

It acts ad strength and support to the plant. It is fully permeable.

Question 11

What is the function of Chloroplast

Answer 11

This the site of photosynthesis

Question 12

What is the function of Large permanent vacuole

Answer 12

contains cell sap

Question 13

What is diffusion

Answer 13

the movement of substances from an area of high concentration to an area of low
concentration.

Question 14

What is osmosis

Answer 14

the movement of water molecules from an area of high concentration to an area of low
concentration across a partially permeable membr

Question 15

What is active transport

Answer 15

the movement of substances from an area of low concentration to an area of
higher concentration. Against a concentration gradient, requires ATP energy and a carrier protein in
the cell membrane