1. Chapter 1 What Is Plant Biology? Lecture Outline
Change first slide for each chapter
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2. Outline The Relationship of Humans to Their Environment
The Effect Humans Have on the Environment
Human and Animal Dependence on Plants
Botany as a Science
Scientific Method
Diversification of Plant Study (Botanical Disciplines)

3. The Effect Humans Have on the Environment
Human population will exceed 7.8 billion in 2025, yet the size of earth remains constant.
We have had major impacts on the environment:
Drained wetlands
Cleared natural vegetation
Dumped wastes and pollution
Used pesticides and herbicides

4. The Effect Humans Have on the Environment
We must reduce our environmental impact:
Change agricultural practices
Render pollutants harmless
Recycle
Replace pesticides with biological pest controls
Conserve water and energy
Preserve habitats and species

5. Human and Animal Dependence on Plants
Plants convert the sun’s energy into energy that is usable to plants and to animals.
In the process, plants produce oxygen and remove carbon dioxide in the air we breathe.

6. Human and Animal Dependence on Plants
Plants are the sources of multiple products of human society:
Food
Perfumes
Dyes
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7. Human and Animal Dependence on Plants
Plants are the sources of multiple products of human society:
Beverages
Lumber
Paper
Coffee

8. Human and Animal Dependence on Plants
Plants are the sources of multiple products of human society:
Clothing
Medicines
Coal and oil
Alternate energy
sources
Cotton plants

9. Botany as a Science Botany is the study of plants.
At first, interest in plants was practical.
Centered around the production of food, fibers, fuel, and medicine
Eventually, an intellectual interest arose.
Led to plant study becoming a science
Science involves the observation, recording, organization, and classification of information.

10. Scientific Method
The scientific method describes the procedures of developing and testing hypotheses.
Hypothesis - Tentative, unproven explanation of an observation

11. Scientific Method
Experiment - Test to determine if a hypothesis is correct
Must be repeatable
Variables - Aspects of the experiment that can be changed or held constant
Good experiments consist of two parts:
Variable changed
Variable held constant = Control

12. Scientific Method Data - Results from the experiment
Principle - Useful generalization derived from experimental data
Theory - Grouping of related principles

13. Diversification of Plant Study (Botanical Disciplines)
Plant Anatomy
Internal structure of plants
Plant Physiology
Plant function
Plant Taxonomy
Describing, naming and classifying plants
Plant Systematics
Developing methods for classifying and naming plants
Cross-section of Magnolia wood

14. Diversification of Plant Study (Botanical Disciplines)
Plant Geography
Plant distributions
Plant Ecology
Interaction between plants and their environments
Plant Morphology
Form and structure of plants

15. Diversification of Plant Study (Botanical Disciplines)
Genetics
Science of Heredity
Potential development of better agricultural, medicinal, and other useful plants
Cell Biology
Cell structure and function
Economic Botany and Ethnobotany
Practical uses of plants and plant products
Still vast amounts of botanical information yet to be discovered

16. Review The Relationship of Humans to Their Environment
The Effect Humans Have on the Environment
Human and Animal Dependence on Plants
Botany as a Science
Scientific Method
Diversification of Plant Study (Botanical Disciplines)