1.1 Cell structure and function: How are cells structured, organised and sustained?
Relate plant and animal cell structure to levels of organisation and the movement of substances needed by cells.
How to study WJEC GCSE The Sciences
Move from a scientific model to a prediction or method, collect or interpret evidence, show quantitative working and finish with a conclusion whose limits match the data.
Core concepts
Concept 1
Compare cell structures and connect organelles to their functions.
Exam cue: Identify the unit, entered tier, supplied reference material, command word and relevant scientific enquiry skill.
Concept 2
Move from cells through tissues and organs to organ systems.
Exam cue: Label only visible structures, then connect structural adaptation to transport or biological function.
Concept 3
Explain diffusion, osmosis and active transport using concentration and membrane evidence.
Exam cue: Use scientific terminology, show quantitative working with units, and connect conclusions to data and the stated model.
Concept 4
Official subtopics: 1.1.1 Structure of animal and plant cells; 1.1.2 Levels of organisation within multicellular organisms; 1.1.3 How cells get what they need.
Concept 5
Scientific enquiry and mathematical skills apply in this topic; bold amplification is Higher Tier only.
Risk pitfalls and guardrails
Treating every cell as if it contains the same structures or confusing diffusion, osmosis and active transport.
Guardrail: Do not import outgoing 3430QD content, another science route, a fixed required-practical list or unsupported tier and connection assumptions.
Recalling a fact without applying it to the observation, data, practical method or unfamiliar context.
Guardrail: Use the live secure pack: Task A may use groups of up to three; Task B is individual and highly controlled. Two enquiries are selected by the centre from three.
Importing content, required practicals, tier rules or paper structure from the outgoing WJEC or another awarding-body route.
Guardrail: Bold amplification is Higher-only. Units 1-6 may mix tiers, but Unit 7 is untiered.
Memory anchors
Organelle
A specialised structure within a cell that performs a particular function.
Tissue
A group of similar cells working together to perform a function.
Diffusion
Net movement of particles from higher to lower concentration.
Osmosis
Net movement of water through a partially permeable membrane from higher to lower water potential.
Active transport
Movement against a concentration gradient using energy from respiration.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Which structure contains most of the genetic material in a typical animal cell? Connect the structure or concentration change to the cell function it supports. Distinguish the measured variable from its explanation.
A cell has circular DNA free in the cytoplasm and no membrane-bound nucleus. Which type of cell is it? Connect the structure or concentration change to the cell function it supports. Link the named structure to its stated function.
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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