cells

Question 1

what is the nucleus

Answer 1

contains DNA and controls the cell

Question 2

what is the cell wall

Answer 2

strengthens the plant cell

Question 3

what is cytoplasum

Answer 3

where the chemical reactions take place

Question 4

what is chloroplast?

Answer 4

absorbs suns energy so photosynthesis can take place

Question 5

what is the cell membrane

Answer 5

controls what goes in and out of the cell

Question 6

what are ribsomes

Answer 6

where protein is produced

Question 7

what is mitochondria

Answer 7

site of respiration

Question 8

what is the vacuole?

Answer 8

contains cell sap

Question 9

what is a plasmid

Answer 9

loop of DNA found in bacteria

Question 10

what does uni-cellular mean

Answer 10

organisums made of one cell

Question 11

what does multi-cellular mean

Answer 11

made up of lots of cells

Question 12

what is differentiation

Answer 12

the process by which cells beccome specialised

Question 13

how have sperm cells become specialised

Answer 13

head contains enzymes to break through cell membrane
mitochondria for energy
long tail to move quicker

Question 14

how has xylem become specialised

Answer 14

thick to support plant

Question 15

how have leaf cells become specialised

Answer 15

large surface area to absorb more light

Question 16

how have red blood cells become specialised

Answer 16

lots of hemogloben to bind to oxygen
no nucleus so more space

Question 17

how have nerve cells become specialised?

Answer 17

long axon to communicate all around the body

Question 18

how have muscle cells become specialised

Answer 18

lost of mitochondria for energy

Question 19

where are stem cells found

Answer 19

earl human embryos and bone marrow