Aerobic Respiration Flashcards
What is respiration
Our bodies continually transfer energy so we can grow move and keep warm
Where does energy come from
Chemical stores in the food we eat
How do we transfer this energy
Glucose reacts with oxygen in a series of chemical reactions called aerobic respiration
What are the steps to aerobic respiration
1 collect the oxygen from the air we breathe
2 blood carries it to cells
What is the word equation for aerobic respiration
Glucose + oxygen -> carbon dioxide + water
What is the symbol equation for aerobic respiration
C H O + 6O -> 6CO + 6H O
6 12 6 2 2 2
What does this reaction do
It transfers energy from its energy store in glucose to another chemical energy store called ATP
What does ATP stand for
Adesonine triphosphate
Who uses ATP
All living organisms
What is the ATP produced during respiration used for
1 synthesising larger molecules from smaller ones to make new cell material
2 movement contracting muscle cells
3 warmth when animals surroundings are colder than they are their respiration rate increases
When does aerobic respiration occur in plant and animal cells
Constantly supplying them with energy
Where does respiration take place
In the mitochondria of a cell and each reaction is controlled by a specific enzyme
How much mitochondria do cells contain
Most cells contain mitochondria but different cells contain a different amount
What does the number of mitochondria in cells mean
It shows how active a cell is ie muscle cells transfer a lot of energy so they have a lot of mitochondria
What happens to energy in respiration
It is transferred to the surroundings as heat and is an EXOTHERMIC REACTION
