1.8 The pentose phosphate pathway Flashcards
1
Q
Give the steps of the pentose phosphate pathway
A
- Glucose-6-Phosphate
- 6-Phosphogluconolactone
- 6-Phosphogluconate
- 6-Phospho-3-ketogluconate
- Ribulose-5-phosphate
- Ribose-5-phosphate
- Fructose-6-phosphate
- (Glucose-6-phosphate)
2
Q
Draw the PPP
A
![](https://s3.amazonaws.com/brainscape-prod/system/cm/280/151/571/a_image_thumb.png?1560091138)
3
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/480/q_image_thumb.png?1559366308)
A
- Glucose-6-phosphate dehydrogenase
- NADP+ → NADPH + H+
4
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/519/q_image_thumb.png?1559366431)
A
- Lactonase
- H2O →
5
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/524/q_image_thumb.png?1559366502)
A
- 6-phosphogluconate dehydrogenase
- NADP+ → NADPH + H+
6
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/536/q_image_thumb.png?1559366546)
A
- No enzyme
- → CO2
7
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/538/q_image_thumb.png?1559366571)
A
Phosphopentose isomerase
8
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/539/q_image_thumb.png?1559366592)
A
Transaldolase/Transketolase
9
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/545/q_image_thumb.png?1559366618)
A
Phosphohexose isomerase
10
Q
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/549/q_image_thumb.png?1559366650)
A
- Hexokinase
- ATP → ADP
11
Q
Indicate the oxidative/non-oxidative parts of the pentose phosphate pathway
A
![](https://s3.amazonaws.com/brainscape-prod/system/cm/279/401/568/a_image_thumb.png?1559367095)
12
Q
Location of the pentose phosphate pathway
A
Cytoplasm of every cell
13
Q
Give the importance of the pentose phosphate pathway
A
- Generate reducing equivalents in the form of NADPH + H+
- Provide cells with Ribose-5-phosphate for nucleotides
- Rearrange carbon skeletons of dietary carbohydrates
14
Q
How is pentose phosphate pathway regulated
A
Glucose-6-phosphate dehydrogenase
- NADP+ Activates
- NADPH + H+ Inhibits