Chapter 8, Problem 29A

Summary Introduction

To define:

The given vocabulary termin a complete sentence.

Introduction: Organisms obtain energy through a process called cellular respiration. During this process complex organic molecules are broken down into simple substances. The main aim of cellular respiration is to harvest electrons from carbon compounds and use that energy to make ATP. ATP is used to provide energy for cells to perform work. This process occurs in two stages, which are, glycolysis and aerobic respiration.

Answer to Problem 29A

Anaerobic process- A process that occurs in the absence of oxygen is called anaerobic process.

Explanation of Solution

The first stage of cellular respiration is glycolysis. It is an anaerobic process. Anaerobic metabolic processes do not require oxygen. In this process glucose is broken down in the cytoplasm of cells to produce two ATP and two NADPH molecules. The 6 carbon compound is broken down to two 3 carbon compounds, pyruvate.