NEET BIOLOGY

PLANT PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In cellular respiration, carbon starts out in the glucose molecule, but ends up in a(n)
A
oxygen molecule
B
water molecule
C
CO2 molecule
D
C6H12O2 molecule
Explanation: 

Detailed explanation-1: -During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.

Detailed explanation-2: -The two acetyl carbon atoms will eventually be released on later turns of the cycle; thus, all six carbon atoms from the original glucose molecule are eventually incorporated into carbon dioxide. Each turn of the cycle forms three NADH molecules and one FADH2 molecule.

Detailed explanation-3: -The carbons from glucose end up in ATP molecules at the end of cellular respiration. Energy is stored within the chemical bonds within the glucose molecule.

Detailed explanation-4: -The 6 carbon and oxygen from the glucose are slowly removed thought the process of glycolysis, oxidation of pyruvate acid, and Krebs cycle in the form of carbon dioxide. Water is not made until the electron transport chain.

Detailed explanation-5: -The end product of glycolysis is pyruvate. 1 molecule of glucose produces 2 molecules of pyruvate. So 1 molecule of pyruvate is responsible for the release of 2 CO2 molecules during 1 Krebs cycle.

There is 1 question to complete.