N-metabolism

what are the two inorganic forms of nitrogen tthe plants can assimilate?

• oxygen and carbon dioxide

• Ammonia and carbon dioxide

• Ammonia and nitrate

• Ammonia and nitrite

True or False. Animals and plants can directly absorb nitrogen from the atmosphere.

• False

• True

why do animals and plants need nitrogen?

• it helps to synthesize proteins

• it helps to synthesize lipids

• it helps to synthesize water

• it helps to synthesize glucose

Complete the sentence. Nitrogen is stored in our body as..

How does a muscle cell remove nitrogen?

How does the liver remove ammonia? State the initial reaction which initiates this process

If leucine, a ketogenic amino acid is broken down, the carbon skeleton will be

Name this molecule

The urea cycle occurs in

• cytoplasm of kidney cells

• mitochondria of kidney cells

• cytoplasm of liver cells

• mitochondria of liver cells

Name this molecule