BTEC International Level 3 Applied Science

Unit 12: Diseases and Infection — assessment criteria

BTEC International Level 3 Unit 12 (Diseases and Infection) — 60 Guided Learning Hours.

Internal / Optional60 GLH16 criteria
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Assessment criteria

Reproduced verbatim from the Pearson specification — the same grid the assignment brief carries. A unit grade is the highest band where all criteria in that band (and every band below it) are met.

Pass

5 criteria
A.P1Describe the organisation and function of the nervous system in relation to cardiovascular and respiratory requirements
B.P2Describe how homeostatic mechanisms maintain normal function
C.P3Explain similarities and differences of AC and DC electrical circuits.
C.P4Explain dangers of working with electricity and its effects on human physiology.
D.P5Explain basic principles of operation of transducers, sensors and electrical measurement.

Merit

5 criteria
A.M1Explain how nervous impulses are initiated, transmitted and coordinated in the control of the cardiovascular and respiratory systems
B.M2Compare predicted and calculated fundamental electrical values for circuit assemblies.
C.M3Explain how the regulation of male and female reproductive systems can affect human reproductive health
C.M4Discuss procedures and practices used to minimise risk when working with electricity.
D.M5Demonstrate the correct basic principles and uses of transducers, sensors and electrical measurement devices.

Distinction

6 criteria
A.D1Assess the role of the nervous system in coordinating the cardiovascular and respiratory systems
AB.D1Evaluate, by calculation and graphical representation, the operation of circuit assemblies using measured values.
B.D2Analyse the impact of homeostatic dysfunction on the human body
C.D2Evaluate the principles of AC production and transmission for safe use in suitable applications.
C.D3Evaluate how conception may be prevented and promoted
D.D3Evaluate the uses and fitness for purpose of transducers, sensors and measurement devices.

Command verbs in this unit

The verb decides the depth expected — that is what separates Pass from Merit and Distinction work on the same learning aim.

DescribeExplainCompareDiscussDemonstrateAssessEvaluateAnalyse
Pearson's ladder runs Identify → Describe → Explain → Compare / Analyse → Evaluate / Justify / Assess. A Merit or Distinction criterion on the same aim always implies the Pass beneath it: an “evaluate” answer that never first “explains” fails, however polished it reads. Hover a verb for what it demands.

How checkb.tech checks this unit

Upload a learner's submission and checkb.tech reads it against exactly these criteria, reporting each one as met, partly met, or not met — with the evidence that informed the verdict cited, so every call is auditable.

The check runs against the official Pearson documents for this unit, and identical evidence always produces an identical result — the same script gets the same verdict every time.

It never awards a grade. You stay the assessor: confirm, dismiss, or act on every criterion before your assessment decision is final.

Verification & Quality Tools for Unit 12

Free Lead IV and assessor utilities configured for Pearson BTEC International specifications.

More Level 3 Applied Science units

Criteria and aim text reproduced for teacher reference from the official Pearson qualification documentation (Pearson BTEC International Level 3 Qualifications). BTEC is a registered trademark of Pearson Education Limited. checkb.tech is an independent tool — not affiliated with, endorsed by, or sponsored by Pearson. It never awards a grade; the teacher stays the assessor.