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Skip Navigation LinksKCC Home > Academic Departments > Biological Sciences > 11New > Webpages > Unit 3, Lesson 11

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Anatomy and Physiology I
Unit 1: Introduction to Human Anatomy and PhysiologyExpand Unit 1: Introduction to Human Anatomy and Physiology
Unit 2: The Cell and It’s EnvironmentExpand Unit 2: The Cell and It’s Environment
Unit 3: Cellular ChemistryExpand Unit 3: Cellular Chemistry
Unit 4: Biomolecules, Cell Architecture and Cellular Molecular FunctionExpand Unit 4: Biomolecules, Cell  Architecture and Cellular Molecular Function
Unit 5: Tissues, Membranes and GlandsExpand Unit 5: Tissues, Membranes and Glands
Unit 6: Integumentary SystemExpand Unit 6: Integumentary System
Unit 7: Skeletal System
Unit 8: Muscular System
Unit 9: Nervous System Introductory Concepts
Unit 10: The Central Nervous System - The Spinal Cord
Unit 11: The Central Nervous System - The Brain
Unit 12: The Autonomic Nervous System and Smooth Muscle

Lesson 11 - UNIT 3 - Quiz #3

1. Describe the essential differences between the following types of mixtures: true solutions,
    suspensions, and colloidal dispersions.
2. Explain the concept of pH verbally (mathematically at the instructor's discretion) and to
    recognize that the scale is logarithmic. Students should know that a change in pH from 7.35
    to 6.35 is a 10-fold increase acidity that is incompatible with life and that normal cellular
    activity requires the narrow pH range of 7.35-7.45.
3. Explain the concept of a buffer and provide one example.
4. Explain 3 different and basic types of chemical reactions in a general way: e.g., A + B ? AB
    as an example of a synthesis.
5. Explain the effects of the following conditions on the rates of chemical reactions: substrate
    concentration, presence of catalysts (e.g., enzymes in biological systems), temperature, pH,
    and presence of enzyme inhibitors.












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