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Updated: Aug 30, 2026
No. of Questions: 80 Questions & Answers with Testing Engine
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| Certification Vendor: | WGU |
|---|---|
| Exam Name: | Introduction to Biology |
| Exam Number: | C190 |
| Passing Score: | 3 (Pass/UI) |
| Exam Price: | N/A (included in term tuition) |
| Exam Format: | Ordering, Multiple Select, Drag and Drop, Multiple Choice |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Real Exam Qty: | 65 |
| Certificate Validity Period: | Course completion credit |
| Sample Questions: | WGU Introduction-to-Biology Sample Questions |
| Exam Way: | Online proctored exam (Objective Assessment) |
| Pre Condition: | None required. This is a standard first-course biology exam. |
| Official Syllabus URL: | https://www.wgu.edu/degrees/bachelors/information-technology.html |
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Biochemistry | 15% | - Cellular Energy (ATP, Cellular Respiration, Photosynthesis) - Structure and Function of Biomolecules - Enzymes and Metabolism |
| Topic 2: Evolution and Ecology | 20% | - Population Ecology - Conservation Biology - Natural Selection - Ecosystems and Biomes - Speciation and Phylogeny |
| Topic 3: Cell Biology | 25% | - Cell Structure and Organelles - Cell Communication - Cell Membrane Transport - Cell Division (Mitosis, Meiosis) |
| Topic 4: Genetics | 25% | - DNA Structure and Replication - Gene Expression (Transcription, Translation) - Mendelian Genetics - Genetic Mutations and Disorders - Modern Genetics and Heredity - Biotechnology |
| Topic 5: Plant and Animal Biology | 15% | - Homeostasis - Animal Tissues and Organ Systems - Plant Structure and Function - Human Biology (Circulatory, Respiratory, Nervous, etc.) |
Question 1
Which comparison ofDNA and RNAis correct?
A. DNA uses uracil; RNA uses thymine.
B. DNA stores hereditary information; RNA is used to make proteins.
C. DNA is single-stranded; RNA is double-stranded.
D. DNA is a monomer; RNA is a polymer.
Question 2
Which statement correctly describes how anionic bondforms?
A. An electron is transferred from one atom to another
B. Two atomic nuclei fuse to form a single molecule
C. Two atoms are attracted to a nearby hydrogen atom that binds them together
D. Two ions share several pairs of electrons
Question 3
Coral reefs are built from calcium carbonate secretions of coral polyps and support diverse communities, but many are shrinking due to climate change. Which activity would have a negative impact on coral reef biodiversity?
A. Increasing use of fossil fuels
B. Increasing the use of renewable energy sources
C. Developing technologies that reduce pollutants
D. Increasing use of sustainable technologies
Question 4
The nucleus contains chromosomes that are replicated and passed to the next generation. One of the two macromolecules in chromosomes is themolecule of heredity. Which molecule is the hereditary material?
A. Carbohydrates
B. DNA
C. RNA
D. Proteins
Question 5
Which stage of cellular respiration produces themost ATPper molecule of glucose broken down?
A. Krebs cycle
B. Calvin cycle
C. Electron transport chain
D. Glycolysis
Solutions:
| Question 1 Answer: B | Question 2 Answer: A | Question 3 Answer: A | Question 4 Answer: B | Question 5 Answer: C |
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