F1. PENTOSE PHOSPHATE PATHWAY process... Flashcards
1
Q
step 1:
- these reactant/s…
- are bounded to an enzyme…
- to form these products…
the enzyme of this step tranfers a ____ from the first reactant will be transfered to the second reactant.
A
- G6P & NADP+.
- G6P dehydrogenase.
- 6-phosphoglucono-d-lactone & NADPH.
hydride ion.
2
Q
Step 2:
- this reactant…
- is converted to…
- using the rxn of…
- with the enzyme…
A
- 6-phosphoglucono-d-lactone.
- 6-phosphogluconate.
- hydrolysis.
- 6-phosphogluconolactonase.
even without the enzyme, this rxn proceeds quickly.
3
Q
step 3:
- the reactant…
- produced…
- using the rxn of…
- with the enzyme…
A
- 6-phosphogluconate.
- more NADPH, five-carbon sugar, & ribulose 5-phosphate.
- decarboxylation.
- 6-phosphogluconate dehydrogenase.
4
Q
metabolite used by the cell as the basis for nucleotide synthesis
A
ribulose 5-phosphate
???
correct me, please XD
5
Q
RIBULOSE 5-PHOSPHATE (Ru5P):
1. is converted to ____ by ____.
or
2. is converted to ____ by ____.
A
- RIBOSE 5-PHOSPHATE by ribulose 5-phosphate isomerase.
- XYLULOSE 5-PHOSPHATE by ribulose 5-pepimerase.
6
Q
- used for NUCLEOTIDE synthesis.
- NUCLEIC ACID production.
- important for GENERAL METABOLISM.
A
RIBOSE 5-PHOSPHATE.
7
Q
- a PRECUSOR for NUCLEOTIDE SYNTHESIS.
- important for the production of other SUGARS & METABOLLIC INTERMEDIATES.
examples of metabollic intermediates…
A
fructose 6-phosphate.
glyceraldehyde 3-phosphate.