Semester Exam Notes

Exam Details

  • 70 marks, 90 minutes long.
  • June 11th, 11:00 AM - 12:30 PM.
  • 20 multiple choice questions, 50 marks free response.
  • Bring pen, pencil, ruler, calculator.

Content Overview

  • NS Photosynthesis
  • NS Ecosystems
  • NS Human Impact (Food Security & Production)
  • NS Inheritance
  • L3.1 (Part 2) NS Meiosis
  • L3.1 NS Mitosis
  • NS The Immune System
  • NS Respiratory & Circulatory Systems
  • NS- The Digestive System

Unit 3: Genetics

  • Explain why cells divide.
  • Describe interphase stages.
  • Describe mitosis stages.
  • Identify mitosis stages in cell images.
  • Explain uncontrolled cell division and tumors.
  • Cancer risks and reduction examples.
  • Compare mitosis to meiosis.
  • Difference between continuous and discrete variation with examples.
  • Polygenic trait definition and examples.
  • Monohybrid cross demonstration.
  • Define genotype, phenotype, allele, recessive, and dominant.
  • Predict offspring genotype/phenotype probability.

Unit 4: Ecology

  • Role of light energy in photosynthesis and energy change.
  • Two stages of photosynthesis and their location.
  • Limiting factors of photosynthesis.
  • Define biodiversity and its advantages.
  • Define species, population, and community.
  • Abiotic and biotic factor examples.
  • Difference between interspecific and intraspecific competition.
  • Increased human population requires increased food yield.
  • Fertilizers and pesticides increase food yield; fertilizers provide nitrates.
  • Leaching's harm to the environment.
  • Biological control and examples.
  • Food security definition and affecting factors.

Unit 5: Human Physiology

  • Digestion definition.
  • Digestive system parts.
  • Role of peristalsis.
  • Role of small intestine and its structure-function relationship.
  • Enzymes involved in digestion.
  • Respiratory system parts.
  • Air carried to lungs via trachea and bronchi, then to alveoli in bronchioles.
  • Ventilation maintains concentration gradients of oxygen and carbon dioxide.
  • Muscle contractions cause pressure changes for ventilation.
  • Alveoli structure allows efficient gas exchange.
  • Arteries, capillaries, and veins: structure and function.
  • Heart structure and associated blood vessels.
  • Pathway of blood through the heart.
  • Function of valves in the heart.
  • Pathogen definition and examples.
  • First line of defense against pathogens.
  • Role of phagocytes and lymphocytes.