Page 3: Enzymes and Plant Organization

This section details enzyme function and plant organization, key topics in bioenergetics AQA GCSE. It covers the lock and key theory, enzyme denaturation, and plant tissue structure.

Definition: The lock and key theory explains how enzymes work by having a specific active site that only fits particular substrate molecules.

Example: Stomata and guard cells demonstrate how plants control water loss through specialized structures.

Highlight: The transpiration stream shows how water moves through a plant, pulled up from roots through the xylem.

Vocabulary: Denaturation - the process where proteins lose their shape and function Translocation - movement of dissolved sugars through phloem

Page 4: Animal Organization

This section begins the exploration of animal organization, focusing on the digestive system, particularly relevant for combined science biology paper 1 revision notes.

Definition: The pancreas is introduced as an organ that produces digestive enzymes including amylase and protease.

Highlight: The digestive system demonstrates how different organs work together in a coordinated manner.

Vocabulary: Amylase - enzyme that breaks down starch Protease - enzyme that breaks down proteins

$Note: This summary is incomplete as only 4 pages of the 7-page transcript were provided$