Question

(1) what does the body need to start cellular respiration? (2) what are the 3 major steps of cellular respiration? (a)__ (b) (c)__ (3) what can be produced from nadph (4) how many atp can be produced from one glucose molecule?

Explanation:

Step1: Identify reactants of cellular respiration

The body needs glucose and oxygen to start cellular respiration. Glucose is the fuel molecule and oxygen is the final electron - acceptor.

Step2: Name major steps of cellular respiration

The three major steps of cellular respiration are glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation.

Step3: NADPH fate

NADPH is mainly involved in anabolic reactions like photosynthesis and is not directly related to the main products of cellular respiration. In cellular respiration, the related co - enzyme is NADH. But if we consider its general role in metabolism, it can be used to reduce compounds in biosynthetic pathways.

Step4: Calculate ATP from glucose

In aerobic respiration, about 30 - 32 ATP can be produced from one glucose molecule. Glycolysis produces 2 ATP (net), the citric acid cycle produces 2 ATP, and oxidative phosphorylation produces about 26 - 30 ATP.

Answer:

(1) Glucose and oxygen
(2) Glycolysis, Citric acid cycle, Oxidative phosphorylation
(3) Used in anabolic reactions for reduction of compounds
(4) 30 - 32 ATP