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NITROGEN AND STARCH METABOLISM, PHYTHORMONE 1

Chemistry May 03, 2021

NITROGEN AND STARCH METABOLISM, PHYTHORMONE

1. Is true or false that The conversion of glutamate to glutamine is catalysed by glutamine synthetase and requires ATP. And please privide explanations.

2. Is true or false that By a simple transamination reaction, intermediates in glycolysis or the Krebs Cycle can be converted in one step to alanine, aspartate and glutamate.And please provide the explanations.

3. Is true or false that Triose phosphates produced in the Calvin cycle can be used only for sucrose synthesis.Please provide the explanations.

Expert Solution

Answer:

1. This reaction is major source for detoxification of ammonia in brain, assimilation of ammonia in plants as well as animal cells.

2. 

3. Triose phosphate formed from Calvin cycle are used up by plants to make sucrose (for transportation), starch (in leaves for use at night and for storage in tubers, seed, stem, roots etc) and lipids etc (for storage as well as physiological functions).

Triose phosphates form glucose and then glucose-1-phosphate. This can be used to make sucrose or starch.

Triose phosphates may enter glycolysis to form pyruvate and then acetyl CoA which is used for lipid synthesis.

Hence, the statement given is FALSE.

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