AP BIOLOGY

CELL RESPIRATION

GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the starting molecule for glycolysis?
A
Glucose
B
ADP
C
Oxygen
D
Pyruvic Acid
Explanation: 

Detailed explanation-1: -Glycolysis is a series of reactions that occurs when glucose molecules split into two 3-carbon molecules known as pyruvates, which then release energy in the form of ATP. Starting material for glycolysis is glucose.

Detailed explanation-2: -Glycolysis starts with glucose and ends with two pyruvate molecules, a total of four ATP molecules and two molecules of NADH.

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).

Detailed explanation-4: -Glycolysis is a series of reactions which starts with glucose and has the molecule pyruvate as its final product. Pyruvate can then continue the energy production chain by proceeding to the TCA cycle, which produces products used in the electron transport chain to finally produce the energy molecule ATP.

Detailed explanation-5: -Glucose is the reactant; while ATP and NADH are the products of the Glycolysis reaction.

There is 1 question to complete.