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WGU Introduction-to-Biology Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Biochemistry | 15% | - Enzymes and Metabolism - Structure and Function of Biomolecules - Cellular Energy (ATP, Cellular Respiration, Photosynthesis) |
| Topic 2: Genetics | 25% | - Modern Genetics and Heredity - Mendelian Genetics - Gene Expression (Transcription, Translation) - Genetic Mutations and Disorders - DNA Structure and Replication - Biotechnology |
| Topic 3: Evolution and Ecology | 20% | - Population Ecology - Speciation and Phylogeny - Natural Selection - Ecosystems and Biomes - Conservation Biology |
| Topic 4: Plant and Animal Biology | 15% | - Plant Structure and Function - Animal Tissues and Organ Systems - Human Biology (Circulatory, Respiratory, Nervous, etc.) - Homeostasis |
| Topic 5: Cell Biology | 25% | - Cell Structure and Organelles - Cell Division (Mitosis, Meiosis) - Cell Membrane Transport - Cell Communication |
WGU Introduction to Biology (KBC1, C190) Sample Questions:
Question 1
A molecule doesnotdissolve in water and consists ofglycerol covalently bound to three fatty acid tails.
What is the primary function of this molecule?
A. Cell communication
B. Catalysis of chemical reactions
C. Genetic information storage
D. Energy storage
Question 2
A gardener performs amonohybrid crosson twoheterozygousorange-fruited tomato plants. Therecessive phenotypeis yellow fruit. What percentage of offspring will produceyellowtomatoes?
A. 50%
B. 75%
C. 100%
D. 25%
Question 3
In a pond ecosystem, mosquito larvae feed on photosynthetic algae; dragonfly larvae feed on mosquito larvae; fish eat dragonfly larvae; raccoons eat fish. What is the producer in this ecosystem?
A. Mosquito larvae
B. Algae
C. Fish
D. Dragonfly larvae
Question 4
The Boreal forest includes trees (pine, spruce) and animals (lynx, elk) harvested for energy, food, or trade.
Which activity would negatively impact biodiversity there?
A. Decreasing human population
B. Decreasing logging throughout the Boreal forest
C. Increasing use of renewable (instead of nonrenewable) energy
D. Increasing human population
Question 5
How isDNA organized during prophase, and why?
A. Uncondensed because it needs to move toward the poles
B. Condensed, which makes it easier to move
C. Organized into paired chromatids to keep it lined up at the center
D. Uncondensed because it needs to be lined up at the center
Solutions:
| Question 1 Answer: D | Question 2 Answer: D | Question 3 Answer: B | Question 4 Answer: D | Question 5 Answer: B |
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