Cells and Respiration

Question 1

Both plant and animal cells have….

Answer 1

cell membrane
mitochondria
nucleus
cytoplasm

Question 2

Plant cells also have (3)

Answer 2

cell wall
chloroplasts
vacuole

Question 3

what does the cell membrane do?

Answer 3

thick skin round the cell that holds it together and controls what goes in and out

Question 4

what does the nucleus do?

Answer 4

controls what the cell does

Question 5

what is the cytoplasm?

Answer 5

jelly like substance where most chemical reactions happen

Question 6

what does the mitochondria do?

Answer 6

tiny structures for aerobic respiration, releasing energy for the cell

Question 7

what does the chloroplast do?

Answer 7

contains chlorophyl for photosynthesis which makes food for plants

Question 8

what does the cell wall do?

Answer 8

rigid exterior coating made of celulose to give the cell support

Question 9

what does the vacuole do?

Answer 9

contains cell sap with sugar and salt

Question 10

what is a tissue?

Answer 10

lots of similar cells working together e.g.skin

Question 11

what is an organ?

Answer 11

a group of different tissues working together e.g heart

Question 12

what is an organ system?

Answer 12

different organs working together in a group e.g respiratory system

Question 13

what is a multicellular organism?

Answer 13

number of different organ systems working together

Question 14

what is diffusion?

Answer 14

substances moving (into or out of a cell)

Question 15

what is glucose?

Answer 15

simple sugar, used for energy

Question 16

what is oxygen?

Answer 16

O2. gas breathed in

Question 17

what is carbon dioxide?

Answer 17

CO2. animals breathe it out, plants use it to make sugar

Question 18

Cellular Respiration - (5 facts)
what is it
where does it happen
what does it use
what does it produce
why is it important - 3 examples

Answer 18

chemical reaction in the cell to release energy from glucose for warmth, movement, growing etc

Question 19

what is aerobic respiration?

Answer 19

respiration with oxygen
happens in the mitochondria of both animals and plants
produces CO2 and H2O as waste products

Question 20

what is anaerobic respiration?

Answer 20

respiration without oxygen

less efficient because less energy produced