Cell Respiration

Question 1

Plant respiration

Answer 1

Take in light E through photo –> makes sugar molecules like glucose –> glucose broken down by mitochondrion to form ATP, energy released by breaking the bonds of sugars –> CO2 released as a low energy molecule

Question 2

Energy flow

Answer 2

Photosyn and Cell respiration

Question 3

ATP

Answer 3

Made of 3 phosphate groups, a ribose and Adenine

*Breaking a phospate group from bond releases E to produce ADP. Known amount of E released so can be controlled

Can use E to join back a phosphate to make ATP –> cell res

Question 4

Why do I need ATP in cells

Answer 4

*To do mechanical work
* To make and break mats
* For transport
* To generally maintain order and prevent entropy

Question 5

What does Cell respiration do?

Answer 5

Mitochondrion - at matrix at the centre and inner membranes

Use glucose and h2o –> low E CO2 + H2O + E in the form of ATP

Question 6

Mitochondrion

Answer 6

*1-10 µm long
*1-1000s per cell
* Has their own DNA + ribosomes, can produce some of it’s own proteins but not all

• Has two membranes: inner and outer, both are phospholipid bilayers and intermembrane space between them where the conc. grad is established

Inner membrane has folds with protein complexes and a matrix inside the membrane. Different compartments of mitochondrion have different parts of the cellular respiration.