
Concept explainers
(a)
Interpretation:
The enzymes at the three control points in the citric acid cycle are to be identified.
Concept introduction:
Citric acid cycle is the third stage in the oxidation of food. It begins with two carbon acetyl units. The acetyl units are formed by the oxidation of pyruvate obtained from glycolysis. It is termed as citric acid cycle as the key intermediate in the cycle is citric acid.
(b)
Interpretation:
An explanation as to how the control point inhibition by NADH and ATP enables the cell to be responsive to energy needs is to be stated.
Concept introduction:
Citric acid cycle is the third stage in the oxidation of food. It begins with two carbon acetyl units. The acetyl units are formed by the oxidation of pyruvate obtained from glycolysis. It is termed as citric acid cycle as the key intermediate in the cycle is citric acid.
(c)
Interpretation:
The benefit of the two control-point enzymes being activated by ADP to the regulation of the cell is to be stated.
Concept introduction:
Citric acid cycle is the third stage in the oxidation of food. It begins with two carbon acetyl units. The acetyl units are formed by the oxidation of pyruvate obtained from glycolysis. It is termed as citric acid cycle as the key intermediate in the cycle is citric acid.

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Chapter 23 Solutions
Study Guide with Student Solutions Manual for Seager/Slabaugh/Hansen's Chemistry for Today: General, Organic, and Biochemistry, 9th Edition
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- ΗΝ, Draw Final Product C cyclohexanone pH 4-5 Edit Enamine H3O+ CH3CH2Br THF, reflux H Edit Iminium Ionarrow_forwardHow many hydrogen atoms are connected to the indicated carbon atom?arrow_forwardIdentify the compound with the longest carbon - nitrogen bond. O CH3CH2CH=NH O CH3CH2NH2 CH3CH2C=N CH3CH=NCH 3 The length of all the carbon-nitrogen bonds are the samearrow_forward
- Identify any polar covalent bonds in epichlorohydrin with S+ and 8- symbols in the appropriate locations. Choose the correct answer below. Η H's+ 6Η Η Η Η Η Ηδ Η Ο Ο HH +Η Η +Η Η Η -8+ CIarrow_forwardH H:O::::H H H HH H::O:D:D:H HH HH H:O:D:D:H .. HH H:O:D:D:H H H Select the correct Lewis dot structure for the following compound: CH3CH2OHarrow_forwardRank the following compounds in order of decreasing boiling point. ннннн -С-С-Н . н-с- ННННН H ΗΤΗ НННН TTTĪ н-с-с-с-с-о-н НННН НН C' Н н-с-с-с-с-н НН || Ш НННН H-C-C-C-C-N-H ННННН IVarrow_forward
- Rank the following compounds in order of decreasing dipole moment. |>||>||| ||>|||>| |>|||>|| |||>||>| O ||>>||| H F H F H c=c || H c=c F F IIIarrow_forwardchoose the description that best describes the geometry for the following charged species ch3-arrow_forwardWhy isn't the ketone in this compound converted to an acetal or hemiacetal by the alcohol and acid?arrow_forward
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