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Question 1

What is oxidative phosphorylation?

Answer 1

The ATP synthesized in the electron transport chain.

90% of the ATP produced in Cellular respiration

Question 2

G protein coupled receptor?

Answer 2

Trans membrane receptor

When activated The g-protein binds to the receptor and GDP is replaced by GTP, activating the g-protein

Question 3

Activated g-protein

Answer 3

The g-protein dissociates from the receptor and then binds to an enzyme, activating the enzyme and signalling cellular response.
The enzyme continues to signal until the signalling molecule is no longer present and GTP is hydrolyzed into GDP

Question 4

Receptor Tyrosine Kinase

Answer 4

Two tyrosine individually bind with a ligand and they move together to form a dimer.
Then each of the tyrosine gain a phosphate from ATP
Then proteins bind to specific tyrosine and lead to cellular response

Question 5

Ligand

Answer 5

Signalling molecules that bind to a receptor

Question 6

Phosphorylation cascade

Answer 6

A signal in molecule is activated

Chain of kinase proteins that become activated by phosphorylation and then causes a signal for cellular response

Question 7

Calcium and ip3 signalling

Answer 7

G-protein activates phospholipase C which cuts PIP2 into DAG and IP3
IP3 binds to calcium channel on the ER membrane which allows calcium to flow into the cell and activate proteins leading to cellular response

Question 8

cAMP signalling

Answer 8

G-protein binds to adynyl Cyclase which converts ATP to cAMP, cAMP acts as a second messenger activating kinase A which leads to cellular response

Question 9

What is substrate level phosphorylation?

Answer 9

Is it how ATP is made in glycolysis and the Krebs cycle

An enzyme transfers a phosphate group from a substrate to ADP to make ATP