Bio - Glycolysis (Stage 1)

What stage of cellular respiration is this

Step 1

What is the starting block

Glucose

What does this stage do

Breaks down glucose to release useable energy (pyruvate)

What is the end product

2 pyruvate molecules

Where does it take place

Cytoplasm

Does it require oxygen

No (Anaerobic)

How much of each molecule does it produce

4 ATP, 2 NADH, 2 pyruvate molecules

Net amount of each molecule produced

2 ATP, 2 NADH, 2 pyruvate

Why does everything technically happen twice

6 carbon molecule is split into 2 3 carbon molecules

Where does the H+ go

cytoplasm

Kinase

Transferring of phosphate group from one molecule to another (gain)

Isomerase/mutase

Rearranges atoms to form an isomer

Phosphatease

Removes a phosphate group

Dehydrogenase

Removes hydrogens
Produces NADH

Substrate level phosphorylation

Transfer of P to high energy substrate molecule without oxygen or ETC
Can be used immediantly

Why does step 5 need to be changed

Only aldehyde can continue in glycolysis, so ketone ones are converted to aldehyde