What this topic covers
Topic 2: Cells and control has 2 subtopics:
- Cell division
- The human nervous system
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GCSE Edexcel Higher Combined Science Biology · Topic 2 of 9
Topic 2: Cells and control – GCSE Edexcel Higher Combined Science Biology revision notes
Choose a subtopic. Cell division, growth, stem cells, the brain, nerves and the eye. 8 lessons in 2 subtopics.
Revise Topic 2: Cells and control for GCSE Edexcel Higher Combined Science Biology, including Cell division. 8 lessons across 2 subtopics.
8
Lessons
2
Subtopics
Topic 2: Cells and control lessons by subtopic
8 lessons, grouped by subtopic.
Cell division
- The Cell Cycle and Preparation for Division
- Mitosis and Cell Division Process
- What are stem cells and where are they found?
- Medical uses and applications of stem cells
- Stem cells in agriculture and conservation
The human nervous system
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Frequently asked questions
What is Topic 2: Cells and control?
Cell division, growth, stem cells, the brain, nerves and the eye. 8 lessons in 2 subtopics.
What is mitosis?
Mitosis is the cell division process that creates two cells genetically identical to each other and to the original parent cell. The Mitosis and Cell Division Process notes cover this in full.
What is a stem cell?
A stem cell is an undifferentiated cell, one that hasn't specialised yet. The What are stem cells and where are they found? notes cover this in full.
What are the stages of the cell cycle?
The cell cycle has three main stages. The The Cell Cycle and Preparation for Division notes cover this in full.
What is a synapse?
A synapse is the microscopic gap between two neurones where nerve impulses are transmitted using chemical messengers called neurotransmitters. The Reflex Actions and the Reflex Arc notes cover this in full.
What is a stimulus?
A stimulus is a change in the environment that triggers a response. The How the Nervous System Works notes cover this in full.
What is the difference between mitosis and meiosis?
Mitosis creates identical cells for growth and repair, while meiosis creates genetically different gametes, or sex cells, for reproduction. The Mitosis and Cell Division Process notes cover this in full.
What is the function of the nervous system?
The function of the nervous system is detecting changes in the environment and coordinating responses. The How the Nervous System Works notes cover this in full.
What is a neurotransmitter?
A neurotransmitter is a chemical messenger that carries a nerve impulse across a synapse. The Reflex Actions and the Reflex Arc notes cover this in full.