Introductions
• Name:
• Educational background:
• Reason for taking this course:
• Personal:
Tentative Schedule
Week
1/5-1/7
Monday
Course intro;
Lecture: Chapter 1
Wednesday
Lecture: Chapter 2
Lab 1: Microscopy
1/12-1/14
Lecture: Chapters 3 & 4
Lecture: Chapter 5
Lab 2: Cell Diversity
1/19- 1/21
Martin Luther King Day: Read ahead !
No Class
Due this week:
Syllabus quiz
Pre-lab 1
Reading quiz: Chapter 1
Pre-lab 2
Reading quiz: Chapters 2-5
Reading quiz: Chapters 6-7
1/26-1/28
Lecture: Chapter 6 & 7
Lab 3: Diffusion and Osmosis
Unit 1 Exam: Online!
No class
Pre-lab 3
Reading quiz: Chapters 6&7
2/2-2/4
Exam Review
Lecture: Chapters 8-9
Lecture: Chapter 10
Lab 4: Photosynthesis and Respiration
Pre-lab 4
Reading quiz: Chapters 8-10
2/9-2/11
Lecture: Chapter 11-12
Lab quiz 1: Labs 1-4
Lecture: Chapter 13
Lab 5: Mitosis and Meiosis
Unit 2 Review
Pre-Lab 5
Lab 4 Report
Reading quiz: Chapters 11-12
2/16-2/18
Presidents’ Day Holiday
Pre-lab 6
Reading quiz: Chapters 13-14
2/23-2/25
Lecture: Chapter 15-16
Lecture: Chapter 14
Unit 2 Exam
Lab 6: DNA Investigator
Lecture: Chapter 17
Lab 7: Modeling Evolution
3/2-3/4
Unit 3 Review
Lecture, Chapter 18
Lab 8: Plant Diversity
Unit 3 Exam
Reading quiz: Chapters 17-18
Pre-lab 8
3/9-3/11
Lecture: Chapter 19
3/16-3/18
Lecture: Chapter 20
Lab 9: Food Webs and Community Dynamics Pre-lab 9
Reading quiz: Chapter 19
Lecture: Chapter 20
Reading quiz: Chapter 20
Lab quiz 2: Labs 5-9
Final exam; date and time TBA
3/23-3/25
Reading quiz: Chapters 1-16
Pre-lab 7
Assignments
• Reading quiz: from the end of the chapters in the text book
• Pre-lab quizzes: simple
• Lab reports: from the hand outs
•
•
•
•
•
•
Objective:
Materials
Procedure(s)
Results (often a table)
Questions to answer
Errors
Grading
Exams (3)
8% for each exam
Final Exam
Laboratory Assignments
Pre-labs: 8%
Lab quizzes: 10%
Lab reports: 12%
Participation
Including online discussions
Assignments
Including online chapter quizzes
24%
Total
100%
15%
30%
10%
21%
Grading Scale
4.0-3.5 A/A-
90-100%
3.4-2.9 B+/B
80-89.9%
2.8-2.2 B-/C+
70-79.9%
2.1-1.5 C/C-
60-69.9%
1.4-0.9 D+/D
50-59.9%
0.8-0.0
below 50%
Questions?
The Scope of Life
Chapter One
The Scope of Life
• Definitions
• Biology: the study of life and living things
• Living things:
•
•
•
•
•
•
•
Order
Regulation
Growth and Development
Energy processing
Response to the environment
Reproduction
Evolution
Life at Many Levels: the Biosphere
•
•
•
•
•
•
•
•
•
•
Biosphere: all living things on the earth
Ecosystem: all of the living and non-living things in an area
Community: all living organisms in an area
Population: all of the individuals of a single species
Organism: a single, individual living thing
Organ systems and organs: groups of cells and tissues which coordinate to serve a
particular system
Tissues: groups of cells within an organ or with like function
Cells: the smallest unit of life
Organelles: functional components of life that serve as compartments
Molecules: collections of atoms that are the building blocks of organelles and
cells
Ecosystem
• All living and non-living things in an area
• A group of interacting objects and beings
• Two main processes
• Nutrient recycling
• Producers
• Consumers
• Decomposers
• Energy utilization
• Unidirectional flow
• Sunlight - Heat
• Seas, deserts, ponds, fields
Cells and their DNA
• Lowest organizational level that can be considered alive
• Meets the criteria for “life”
• Occur singly (bacteria, amoeba) or in groups (organisms)
• Ability to divide is the basis for reproduction, repair, growth and
development
• Common features:
• Membrane that regulates passage of molecules into or out of the cell
• DNA provides information for all processes: consists of genes
• Prokaryotes: single cells; no internal organelles
• Eukaryotes: internal subdivision into membrane bound organelles
• Nucleus, mitochondria,
Life in its Diverse Forms
• Abundance;
• 1.8 million species
• 290000 plants; 52000 vertebrates, 1 million insects
• Grouping species
• Three domains of life: archaea, bacteria and eukary
• Three kingdoms of eukarya: plants (producers), animals (consumers) and
fungi (decomposers)
• Phylum, Order, Class, Genus, Species
• Unity and Diversity of life
• Genetic language
Evolution: Life’s Unifying Theme
• History of life
• Branching relationships
• Common ancestors
• Speciation
The Darwinian View
• Natural selection
• Overproduction and competition
• Individual variation
• Unequal reproductive success
• Artificial Selection
• Breeding plants for specific traits
The Process of Science
• Discovery
• Hypothesis driven science
• Scientific method
•
•
•
•
•
•
Observation
Question
Hypothesis
Prediction
Experiment
Result
Evolution Connection
• The environment presents selective pressures to communities and
populations
• Antibiotic resistance
• Antibiotics are drugs that save lives
• They kill most, but not all bacteria
•
•
•
•
A population of bacteria has natural variation in the susceptibility to the drug
Survivors are better able to survive exposure to the drug, and multiply
A larger proportion of the next generation of bacteria survives
After several generations the population is largely RESISTANT
• Antibiotics are excreted into the environment
• Other bacterial species are exposed to and survive the drug
• They also evolve to show resistance
Biology and Society
• Trans fats
• Non-natural fats added to foods
• Hypothesis: patients who have experienced heart attacks will have more trans
fats in their adipose tissue than healthy controls
• Test: sample the fat of 79 heart attack victims and 167 similar patients
without a history of heart attack
• Result: 1.77 vs. 1.48 grams of trans fat per 100 grams of adipose tissue.
• DNA Evidence
Laboratory One