LABORATORY 6 CELLULAR METABOLISM Name Date Instructor Sectio

LABORATORY 6 CELLULAR METABOLISM Name: Date Instructor: Section PRE-LAB QUESTIONS 1. What is the difference between aerobic cellular respiration and breathing? How are they related? 2. In the chemical reaction for aerobic cellular respiration, water is one of the products. However, when cells undergo fermentation, no water is produced. Why not? 3. In this lab, what organism will you use to demonstrate aerobic cellular respiration? What will you use as a control? llatahalism Pre-Lab 1

Solution

DIFFERENCE BETWEEN AEROBIC CELLULAR RESPIRATION AND BREATHING

AEROBIC CELLULAR RESPIRATION

BREATHING

Aerobic cellular respiration uses oxygen and yields many more ATP molecules .

It is a chemical process by which energy is obtained within individual cells from biomolecules like glucose.

Breathing is a part of respiration and functions to bring oxygen into the lungs and expel carbon dioxide.

It is a natural physical process.

Oxygen drawn into your blood by your lungs is used in the process of aerobic cellular respiration, an \"exergonic\" process meaning it produces energy for your body.

When you inhale, air is drawn into your lungs by the movement of your diaphragm and other breathing muscles.

The energy is drawn from glucose in your cells and is released as a substance known as adenosine triphosphate (ATP).

ATP is a form of energy that cells can use to perform their basic functions. In simple terms: glucose + oxygen = carbon dioxide, water and ATP (energy).

NO ATP   is formed in the process of Breathing. Air enters your lungs via your nose or mouth and down your windpipe to be divided into each lung by your trachea.

There are Three Stages of Aerobic Cellular Respiration

Step-1 The first stage of aerobic cellular respiration is glycolysis, which partially oxidizes glucose in the cells and produces two ATP molecules and some pyruvate molecules.

Step-2  The second stage known as the Krebs or citric acid cycle releases further ATP molecules by processing the pyruvate molecules from the glycolysis stage into ATP.

Step-3  The third and final stage known as the electron transport chain produces the last ATP molecules as well as water.

Breathing has only two steps- Inhalation and exhalation .

Inhalation- it is the process of intake of oxygen in which ribs move up and outward and diaphragm moves down.

Exhalation- During exhalation ribs move down and in wards, while diaphragm moves up to its former position.

INTER RELATION OF AEROBIC CELLULAR RESPIRATION AND BREATHING-

The processes of cellular respiration and breathing are part of the same process. When you inhale, carbon dioxide is replaced by oxygen in your blood; this oxygen is required by cells to perform aerobic cellular respiration as opposed to anaerobic cellular respiration--a similar process that does not require oxygen.

AEROBIC CELLULAR RESPIRATION	BREATHING
Aerobic cellular respiration uses oxygen and yields many more ATP molecules . It is a chemical process by which energy is obtained within individual cells from biomolecules like glucose.	Breathing is a part of respiration and functions to bring oxygen into the lungs and expel carbon dioxide. It is a natural physical process.
Oxygen drawn into your blood by your lungs is used in the process of aerobic cellular respiration, an \"exergonic\" process meaning it produces energy for your body.	When you inhale, air is drawn into your lungs by the movement of your diaphragm and other breathing muscles.
The energy is drawn from glucose in your cells and is released as a substance known as adenosine triphosphate (ATP). ATP is a form of energy that cells can use to perform their basic functions. In simple terms: glucose + oxygen = carbon dioxide, water and ATP (energy).	NO ATP   is formed in the process of Breathing. Air enters your lungs via your nose or mouth and down your windpipe to be divided into each lung by your trachea.
There are Three Stages of Aerobic Cellular Respiration Step-1 The first stage of aerobic cellular respiration is glycolysis, which partially oxidizes glucose in the cells and produces two ATP molecules and some pyruvate molecules. Step-2  The second stage known as the Krebs or citric acid cycle releases further ATP molecules by processing the pyruvate molecules from the glycolysis stage into ATP. Step-3  The third and final stage known as the electron transport chain produces the last ATP molecules as well as water.	Breathing has only two steps- Inhalation and exhalation . Inhalation- it is the process of intake of oxygen in which ribs move up and outward and diaphragm moves down. Exhalation- During exhalation ribs move down and in wards, while diaphragm moves up to its former position.