- ACatalyst
- BSource of energy
- CEnzyme
- DBuilding material
Explanation:
Carbohydrates are more suitable for the production of energy in the body then proteins and fats.
Carbohydrate are also stored in the body cells as glycogen and are used for the production of energy whenever required.
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Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline
Reason: $He$ is soluble in blood.
$(I)$ Only compounds with chiral centers can be optically active
$(II)$ Absence of elements of symmetry is the reason for a molecule's optical activity
$(II)$ All organic compounds contain carbon & hydrogen
$(IV)$ Different cannonical forms of a molecule represent the actual structures of a molecule which has resonace in it
$A.$ Phenol $B.$ Cresol
$C.\, m-$ Nitrophenol $D.\, p-$ Nitrophenol