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Biology - GCSE > Respiration > Flashcards

Flashcards in Respiration Deck (12):
1

They both happen in the..

Mitohondria

2

When do living things respire

All of the time

3

What type of reaction is aerobic resp

Exothermic so they can continuously release energy

4

Formula for aerobic resp

Oxygen + Glucose -> (energy) + carbon dioxide + water

5

Exothermic reaction

Gives out energy

6

Endothermic reaction

Takes in energy

7

What is aerobic resp

When oxygen diffuses from alveoli into bloodstream
Glucose diffuses out of small intestine into digestive system and into capillaries in bloodstream and then into respiring cells.

Carbon dioxide is waste product of diffusion and goes out of cells into bloodstream and then into alveoli to be breathed out of the body

8

Cardiac output

Volume of blood circulated by heart per min

9

Stroke volume

Volume of blood pump per beat

10

Cardiac output equation

Cardiac output = stroke vol x heart rate
Cm3/min Cm3 bpm

11

What happens when we reach max breathing rate and cardiac output

We cant supply oxygen any quicker so cant release more energy in aerobic resp. Therefore we begin to respire anaerobically

12

What is EPOC

The extra oxygen needed to break down lactic acid after anaerobic resp. Its called the “excess post exercise oxygen consumption”