1) Destruction of the ozone layer takes place when its component ozone (O3) is converted into oxygen gas (O2) as shown by the following chemical equation. O3 +0-202 Although degradation of O3 happens naturally, there are some man-made substances that cause this process to take place at a rate which is harmful to the environment. One such substance is chlorofluorocarbon or CFC. In the presence of ultraviolet (UV) radiation, a chlorine (Cl) atom from CFC reacts with O3 and converts it to O2 at a faster rate. This is shown by the 2 equations below. Cl + O3 → Clo + O2 Clo + 0- Cl + 02 In this process, the chlorine atom acts as 2) Pepsin is an enzyme present in gastric juice. In the stomach, it catalyzes the breaking 1 down of proteins into shorter polypeptides. Therefore, proteins are the
1) Destruction of the ozone layer takes place when its component ozone (O3) is converted into oxygen gas (O2) as shown by the following chemical equation. O3 +0-202 Although degradation of O3 happens naturally, there are some man-made substances that cause this process to take place at a rate which is harmful to the environment. One such substance is chlorofluorocarbon or CFC. In the presence of ultraviolet (UV) radiation, a chlorine (Cl) atom from CFC reacts with O3 and converts it to O2 at a faster rate. This is shown by the 2 equations below. Cl + O3 → Clo + O2 Clo + 0- Cl + 02 In this process, the chlorine atom acts as 2) Pepsin is an enzyme present in gastric juice. In the stomach, it catalyzes the breaking 1 down of proteins into shorter polypeptides. Therefore, proteins are the
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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