27. The following is step 3 of the citric acid cycle. What is the functional group transformation that occurs in the first part of this step? COO I NAD* NADH + H* CH2 H-C-CO- Но-С-н CH2 H-C-0 CH2 H-C-H ČOO ČOO Isocitrate a-ketoglutarate A) A ketone and an alcohol change positions. B) An alcohol becomes a ketone. C) The -COO is transformed. D) The alcohol becomes an aldehyde.

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H-C-U-o
27. The following is step 3 of the citric acid cycle. What is the functional
transformation that occurs in the first part of this step?
group
COO
COO
NAD*
NADH + H*
CH2
CH2 0
H-C-C
CH2
H-C-H
H-C-COO-
Но-с-н
COO
COO
Isocitrate
a-ketoglutarate
A) A ketone and an alcohol change positions.
C) The -COO is transformed.
B) An alcohol becomes a ketone.
D) The alcohol becomes an aldehyde.
28. The following is step 3 of the citric acid cycle. What is the identity of the
Molecule represented by I?
COO
COO
NAD*
NADH + H*
I
COO
CH2
CH2 0
H-C-C
CH2
H-C-H
H-C-COO-
HO-C-H
COO
COO
Isocitrate
a-ketoglutarate
A) Acetate
B) GTP
C) NADH D) FADH2
E) CO2
Transcribed Image Text:H-C-U-o 27. The following is step 3 of the citric acid cycle. What is the functional transformation that occurs in the first part of this step? group COO COO NAD* NADH + H* CH2 CH2 0 H-C-C CH2 H-C-H H-C-COO- Но-с-н COO COO Isocitrate a-ketoglutarate A) A ketone and an alcohol change positions. C) The -COO is transformed. B) An alcohol becomes a ketone. D) The alcohol becomes an aldehyde. 28. The following is step 3 of the citric acid cycle. What is the identity of the Molecule represented by I? COO COO NAD* NADH + H* I COO CH2 CH2 0 H-C-C CH2 H-C-H H-C-COO- HO-C-H COO COO Isocitrate a-ketoglutarate A) Acetate B) GTP C) NADH D) FADH2 E) CO2
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