A LevelBiologyAQAOrganisms Respond to Changes in their Environments (A Level only)

Organisms Respond to Changes in their Environments (A Level only) (AQA A Level Biology)

Get ready for your AQA A Level Biology exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.

Response to Stimuli (A Level only)

  1. Survival & Response
  2. Growth Factors in Flowering Plants
  3. Indoleacetic Acid (IAA)
  4. Taxis & Kinesis
  5. Reflex Arcs
  6. Causes of Animal Movement
  7. The Pacinian Corpuscle
  8. Generator Potential
  9. Investigating Touch and Temperature Receptors
  10. The Human Retina
  11. Myogenic Stimulation of the Heart
  12. Investigating Variables that Affect Heart Rate
  13. The Autonomic Nervous System
  14. Calculating Cardiac Output

Nervous Coordination (A Level only)

  1. Neurones
  2. Resting Potentials
  3. Nerve Impulses
  4. The Refractory Period
  5. Speed of Conduction of Impulses
  6. Maths Skill: Calculating Maximum Impulse Frequency
  7. Cholinergic Synapses
  8. Transmission Across a Cholinergic Synapse
  9. Drug Effects on Synapses
  10. Neuromuscular Junctions

Skeletal Muscles (A Level only)

  1. Muscle Pairs
  2. The Structure of Skeletal Muscle
  3. Examining Skeletal Muscle Under a Microscope
  4. Muscular Contraction
  5. Slow & Fast Skeletal Muscles
  6. Investigating Muscle Fatigue

Homeostasis (A Level only)

  1. Principles of Homeostasis
  2. Negative Feedback
  3. Insulin
  4. Glucagon
  5. Adrenaline
  6. Control of Blood Glucose Concentration
  7. Diabetes
  8. Calculating the Concentration of Glucose in Urine
  9. The Structure of the Nephron
  10. The Function of the Nephron
  11. Control of Blood Water Potential

Response to Stimuli (A Level only)

  1. Exam Questions

Nervous Coordination (A Level only)

  1. Exam Questions

Skeletal Muscles (A Level only)

  1. Exam Questions

Homeostasis (A Level only)

  1. Exam Questions
AQA A Level Biology Past Papers