AP BIOLOGY

CELL RESPIRATION

GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Kinase catalyzes the conversion of Glucose to Glucose-6-Phosphate, Fructose-6-Phosphate to Fructose-1, 6-Phosphate, 1, 3DPGA to 3PGA, and PEP to Pyruvate. It can be inferred that kinase is responsible for what process?
A
oxidation
B
phosphorylation
C
reduction
D
chemiosmosis
Explanation: 

Detailed explanation-1: -Explanation: The rate-limiting step of glycolysis is the conversion of glucose-6-phosphate to fructose-6-phosphate. This reaction is catalyzed by the enzyme phosphofructokinase.

Detailed explanation-2: -FBPase is a key gluconeogenic enzyme, catalyzing the hydrolysis of fructose-1, 6-bisphosphate to fructose-6-phosphate and inorganic phosphate. Two different paralogs exist in humans; FBP1 is found in the liver, and FBP2 is found in muscle.

Detailed explanation-3: -The first step in glycolysis (Figure 9.1. 1) is catalyzed by hexokinase, an enzyme with broad specificity that catalyzes the phosphorylation of six-carbon sugars. Hexokinase phosphorylates glucose using ATP as the source of the phosphate, producing glucose-6-phosphate, a more reactive form of glucose.

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