AP BIOLOGY

CELL RESPIRATION

GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ will cleave the hexose into two molecules of triose.
A
Hexokinase
B
Glucokinase
C
Aldolase
D
Enolase
Explanation: 

Detailed explanation-1: -Glycolysis can be broadly defined as an energy-yielding pathway that results in the cleavage of a hexose (glucose) to a triose (pyruvate).

Detailed explanation-2: -A rarer ADP-dependent PFK enzyme variant has been identified in archaean species. Destabilizing the molecule in the previous reaction allows the hexose ring to be split by aldolase into two triose sugars: dihydroxyacetone phosphate (a ketose), and glyceraldehyde 3-phosphate (an aldose).

Detailed explanation-3: -Fructose-bisphosphate aldolase (aldolase) catalyses the reversible cleavage of F1, 6PP to two triose phosphates, both of which continue through glycolysis.

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