ways to produce ATP and OP Flashcards

(17 cards)

1
Q

What are the two main methods in producing ATP?

A

Substrate level phosphorylation and oxidative phosphorylation

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2
Q

Which stages does substrate level phosphorylation occur?

A

Glycolysis and Krebs

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3
Q

Where does oxidative phosphorylation occur?

A

The cristae

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4
Q

When does oxidative phosphorylation occur?

A

In aerobic conditions

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5
Q

Why is oxygen essential?

A

As it’s the final electron acceptor

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6
Q

What is the first stage of oxidative phosphorylation?

A

Reduced NAD and FAD are oxidised

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7
Q

What is released during the first stage?

A

Hydrogen atoms

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8
Q

What is each hydrogen atom split up into?

A

An electron and a proton

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9
Q

Where do the electrons go?

A

They pass down an electron transport chain

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10
Q

What happens as electrons pass down the chain?

A

They lose energy

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11
Q

What is this energy used for?

A

It pumps protons across the inner mitochondrial membrane into the inter-membrane space

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12
Q

What is established from pumping protons?

A

A proton gradient

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13
Q

What does the proton gradient allow to happen?

A

The protons can diffuse back across the inner membrane into the matrix via the enzyme ATP synthase

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14
Q

What does this diffusion allow to happen?

A

There’s enough energy to form ATP from ADP and Pi

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15
Q

What happens at the end of the electron transport chain?

A

Electrons combine with protons and oxygen to form water

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16
Q

What does oxidation refer to?

A

The removal of hydrogen from the respiratory substrate

17
Q

What does phosphorylation refer to?

A

The formation of ATP by the addition of phosphate to ADP