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Flashcards in Nitrogen 2 Deck (11)
1

Which is the only amino acid that can loose its nitrogen by transamination?

Glutamate

2

How ammonia transported safely in the blood stream?

As glutamine

3

When is alanine made in the muscle and how?

Vigorously working muscles that operate anaerobically yield pyruvate that cannot be metabolised.

Pyruvate is converted to alanine and transported to the liver

4

What does the liver do with the pyruvate?

Gluconeogenesis

5

What is the charge of glutamate, glutamine and alanine?

Glutamate has a negative charge
Glutamine and alanine have no charge

6

What happens after the removal of the amino group in amino acids?

Carbon skeletons are converted to glucose or oxidised as part of the the citric acid cycle.

7

How many amino acids are essential?

There are 8
We need to get these from our diet

8

What are the two different types of ketone bodies?

Glucogenic and ketogenic

9

What are glucogenic carbon skeletons?

They feed into gluconeogenesis and so produce glucose or glycogen in the liver

10

What are ketogenic carbon skeletons?

They feed into acetoacetate or acetyl CoA (and cannot result in gluconeogenesis)

11

Which compound donates nitrogen into the urea cycle?

Carbomyl phosphate