MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

MITOCHONDRIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The starting molecule for glycolysis is
A
ADP
B
pyruvic acid
C
citric acid
D
glucose
Explanation: 

Detailed explanation-1: -Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.

Detailed explanation-2: -It should be noted that when there is a surplus of glucose, some of the glucose will be converted to glycogen. Later, when blood sugar begins to fall, glycogen can be broken down into monomers of glucose again, which will enter glycolysis.

Detailed explanation-3: -During glycolysis, glucose ultimately breaks down into pyruvate and energy; a total of 2 ATP is derived in the process (Glucose + 2 NAD+ + 2 ADP + 2 Pi–> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O). The hydroxyl groups allow for phosphorylation. The specific form of glucose used in glycolysis is glucose 6-phosphate.

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