respiration

Question 1

what is cell respiration?

Answer 1

the boxes of breaking down food molecules to release atp. a series of chemical reactions

Question 2

what is atp

Answer 2

cell’s source of energy to carry out essential life processes. examples include:
-cell division, contraction of muscles, building large molecules- such as proteins, transporting molecules and maintaining body temp

Question 3

what is aerobic respiration?

Answer 3

respiration that requires oxygen to break down glucose to release energy.
some energy released as heat but most is trapped in a useable form of atp

Question 4

aerobic respiration equations

Answer 4

-glucose + oxygen -> carbon dioxide + water

-C6H12O6 + 6O2 -> 6CO2 + 6H2O

Question 5

what is anaerobic respiration?

Answer 5

-respiration without using oxygen

Question 6

effectiveness of different types of respiration:

Answer 6

• aerobic- more effective as it completely oxidises the glucose- lots of atp released
• anaerobic- less effective as glucose not completely broken down- less atp released

Question 7

problems with anaerobic respiration

Answer 7

-produces waste products such as lactic acid, which can kill cells if built up, so must be excreted

Question 8

advantages of anaerobic respiration

Answer 8

• allows cells to obtain energy when oxygen supply is limited

Question 9

anaerobic respiration equation (plants+fungi)

Answer 9

glucose -> carbon dioxide + ethanol

Question 10

anaerobic respiration equation (animals)

Answer 10

glucose -> lactic acid

Question 11

what is oxygen debt

Answer 11

the volume of oxygen needed to oxidise the lactic acid