AQA GCSE Biology revision notes
Animal tissues, organs and organ systems Revision Notes
Study Animal tissues, organs and organ systems with curriculum-aligned Revision Notes resources, practice links, and exam-focused support.
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Animal tissues, organs and organ systems
Revision notes
Trachea and bronchi diagram
Specification Link
This respiratory system diagram is used for: Describe the basic structures of the lungs that are required, including trachea, bronchi, alveoli and surrounding capillaries.
What To Explain
Efficient gas exchange depends on a large surface area, short diffusion distance and maintained concentration gradients.
Exam Answer Move
This matches the objective: Describe the basic structures of the lungs that are required, including trachea, bronchi, alveoli and surrounding capillaries. The answer should explain structure, diffusion and concentration gradients.
Digestive system diagram
Specification Link
This digestive system diagram is used for: Recall the main sites of production and action of amylase, proteases and lipases.
What To Explain
Digestive organs and enzymes break large insoluble food molecules into smaller soluble molecules that can be absorbed.
Exam Answer Move
This is tied to: Recall the main sites of production and action of amylase, proteases and lipases. The learner should explain digestion, enzymes or absorption.
Rectum diagram
Specification Link
This digestive system diagram is used for: Recall the main sites of production and action of amylase, proteases and lipases.
What To Explain
Digestive organs and enzymes break large insoluble food molecules into smaller soluble molecules that can be absorbed.
Exam Answer Move
This is tied to: Recall the main sites of production and action of amylase, proteases and lipases. The learner should explain digestion, enzymes or absorption.
Salivary glands Parotid gland Sublingual gland Submaxillary gland diagram
Specification Link
This digestive system diagram is used for: Recall the main sites of production and action of amylase, proteases and lipases.
What To Explain
Digestive organs and enzymes break large insoluble food molecules into smaller soluble molecules that can be absorbed.
Exam Answer Move
This is tied to: Recall the main sites of production and action of amylase, proteases and lipases. The learner should explain digestion, enzymes or absorption.
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