chapt02LectureOutlines

chapt02LectureOutlines - A GOAL OF HUMAN BIOLOGY (of...

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1 A GOAL OF HUMAN BIOLOGY (of College Courses) Paradigm shift!!! From a “teaching environment” . . . . . To a “learning environment” . Biology is primarily about … Not memorization . . . . . BUT understanding . . . . . and application (practical application) . . . . . . . . .
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2 Learning for Understanding and Retention Critical Thinking Skill #1 1. Summarize or restate in your own words. 2. Elaborate on the main idea. 3. Give examples to support or clarify. 4. Relate the issue/content/skill to life or other concepts.
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3 Chapter 2 Chemistry of Life
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4 Outline FOCUS on now . Basic Chemistry Atoms Isotopes Molecules and Compounds Chemical Reactions Properties of Water Acids and Bases FOCUS on with Digestive System (Ch. 5) Macromolecules ATP
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5 Basic Chemistry Life is chemistry. Chemistry is the study of matter and the changes it undergoes. There are 92 naturally-occurring elements . Their characteristics are represented in the Periodic Table of Elements . Over 90% of human body is composed of four elements. Carbon. Nitrogen. Oxygen. Hydrogen.
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6 Atoms An atom is the smallest unit of matter that retains an element’s physical and chemical properties. Positively-charged protons and neutral neutrons are located in the nucleus. Negatively-charged electrons orbit the nucleus in shells (energy levels). How many will each hold? 2, 8, 18, 32, . . . . Octet Rule ?
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7
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Atoms An element’s atomic number is designated by its number of protons. An element’s atomic weight is designated by its protons and neutrons. Why not include the electrons
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chapt02LectureOutlines - A GOAL OF HUMAN BIOLOGY (of...

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