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AP Biology can be a tough subject to tackle, but with the right help, it doesn’t have to be overwhelming. At Noble Learners, we understand how challenging topics like genetics and cell biology can feel. That’s why we offer one-on-one support to break these concepts down in a way that actually makes sense. Whether you’re getting ready for an exam or just need a bit of extra help, our tutors are here to help you feel confident and prepared every step of the way.

 

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AP Biology Syllabus

Unit 1: Chemistry of Life

  • Water and the Importance of Hydrogen Bonds
  • Macromolecules: Carbohydrates, Proteins, Lipids, Nucleic Acids

Unit 2: Cell Structure and Function

  • Cell Organelles and Their Functions
  • Membrane Transport: Passive and Active
  • Water Potential and Osmolarity

Unit 3: Cellular Energetics

  • Enzymes: Structure and Function
  • Photosynthesis and Cellular Respiration Pathways

Unit 4: Cell Communication and Cell Cycle

  • Signal Transduction Pathways
  • Feedback Mechanisms
  • Phases of the Cell Cycle, Regulation, and Apoptosis

Unit 5: Heredity

  • Meiosis and Genetic Diversity
  • Mendelian and Non-Mendelian Genetics

Unit 6: Gene Expression and Regulation

  • DNA Replication, Transcription, and Translation
  • Regulation of Gene Expression in Prokaryotes and Eukaryotes
  • Biotechnology: PCR, Gel Electrophoresis, CRISPR

Unit 7: Natural Selection

  • Evidence of Evolution
  • Types of Selection and Hardy-Weinberg Equilibrium
  • Phylogenetics and Speciation

Unit 8: Ecology

  • Energy Flow and Ecosystem Dynamics
  • Population Ecology and Biodiversity
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AP Biology Exam Questions

1. Which property of water allows it to regulate temperature effectively?

a) High surface tension

b) High heat of vaporization

c) High density

d) Low specific heat

Correct Answer: b) High heat of vaporization


2. What is the primary role of carbohydrates in cells?

a) Energy storage

b) Genetic information

c) Structural support

d) Catalyzing reactions

Correct Answer: a) Energy storage


3. In an enzyme-catalyzed reaction, what happens to the activation energy?

a) It increases

b) It decreases

c) It remains unchanged

d) It is converted into heat

Correct Answer: b) It decreases


4. What is the role of ribosomes in cells?

a) DNA replication

b) Protein synthesis

c) Lipid storage

d) Waste removal

Correct Answer: b) Protein synthesis


5. Which molecule is the final electron acceptor in cellular respiration?

a) NADH

b) Oxygen

c) Glucose

d) Carbon dioxide

Correct Answer: b) Oxygen


6. What phase of the cell cycle is characterized by DNA replication?

a) G1 phase

b) S phase

c) G2 phase

d) M phase

Correct Answer: b) S phase


7. Which type of macromolecule forms the plasma membrane?

a) Proteins

b) Carbohydrates

c) Lipids

d) Nucleic acids

Correct Answer: c) Lipids


8. Which process occurs in the chloroplasts of plant cells?

a) Cellular respiration

b) Photosynthesis

c) Fermentation

d) Glycolysis

Correct Answer: b) Photosynthesis


9. In Mendelian genetics, what does a dihybrid cross analyze?

a) A single trait

b) Two traits

c) Multiple alleles

d) Epistasis

Correct Answer: b) Two traits


10. What is the function of tRNA during translation?

a) Carrying amino acids

b) Transcribing mRNA

c) Synthesizing proteins

d) Stabilizing ribosomes

Correct Answer: a) Carrying amino acids


11. What is the purpose of the Hardy-Weinberg equilibrium model?

a) To describe how traits are inherited

b) To predict population size

c) To calculate gene frequencies

d) To study mutation rates

Correct Answer: c) To calculate gene frequencies


12. Which component of the nervous system is responsible for transmitting signals to muscles?

a) Sensory neurons

b) Interneurons

c) Motor neurons

d) Glial cells

Correct Answer: c) Motor neurons


13. What process is primarily responsible for genetic variation in sexual reproduction?

a) Independent assortment

b) Binary fission

c) Cloning

d) Mitosis

Correct Answer: a) Independent assortment


14. What is the primary role of the mitochondria in cells?

a) Photosynthesis

b) ATP production

c) Protein synthesis

d) Lipid metabolism

Correct Answer: b) ATP production


15. Which ecosystem has the highest biodiversity?

a) Tundra

b) Desert

c) Rainforest

d) Grassland

Correct Answer: c) Rainforest


16. What is the role of a promoter in gene expression?

a) It terminates transcription

b) It binds RNA polymerase

c) It splices introns

d) It enhances mutations

Correct Answer: b) It binds RNA polymerase


17. What is the function of stomata in plants?

a) Water absorption

b) Gas exchange

c) Nutrient transport

d) Photosynthesis

Correct Answer: b) Gas exchange


18. Which structure stores genetic information in eukaryotic cells?

a) Ribosomes

b) Nucleus

c) Cytoplasm

d) Lysosomes

Correct Answer: b) Nucleus


19. In ecological terms, what is primary productivity?

a) Energy available to consumers

b) Energy produced by autotrophs

c) Energy consumed by decomposers

d) Energy lost as heat

Correct Answer: b) Energy produced by autotrophs


20. Which organelle is involved in detoxification in liver cells?

a) Lysosome

b) Rough ER

c) Smooth ER

d) Golgi apparatus

Correct Answer: c) Smooth ER


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