Question

1. explain the steps of cellular respiration in order from reactants to products. 6. light energy is used in photosynthesis to create chemical energy in the form of glucose. this chemical energy is then converted in the process of cellular respiration to create new chemical energy in the form of carbon dioxide and water.

Explanation:

Step1: Glycolysis

Glucose is broken - down into pyruvate, producing a small amount of ATP and NADH.

Step2: Pyruvate Oxidation

Pyruvate enters the mitochondria and is converted to acetyl - CoA, releasing CO₂ and producing NADH.

Step3: Citric Acid Cycle

Acetyl - CoA enters the cycle, combining with oxaloacetate. Through a series of reactions, CO₂ is released, and ATP, NADH, and FADH₂ are produced.

Step4: Oxidative Phosphorylation

NADH and FADH₂ donate electrons to the electron - transport chain. Energy from electron transfer is used to pump protons across the inner mitochondrial membrane, creating a proton gradient. ATP synthase uses the energy of the proton gradient to produce ATP.

Answer:

The steps of cellular respiration are glycolysis, pyruvate oxidation, citric acid cycle, and oxidative phosphorylation. Glucose is first broken down into pyruvate in glycolysis. Pyruvate is then converted to acetyl - CoA in pyruvate oxidation. Acetyl - CoA enters the citric acid cycle, and finally, energy from electron - carriers is used to produce ATP in oxidative phosphorylation.