COMMAND WORD · BIOLOGY

Describe

Give a linked account of what happens or what something is like, without adding a reason you were not asked for.

All command words

Writing frame

What, then the next linked point, then stop.

What the parts mean

  • Whatthe structure, process or pattern
  • Next pointthe following stage or feature
  • Stopno extra reason unless the question also says explain

How to build your answer

  1. 1Name the thing you are describing.
  2. 2Put the points in the order they happen, or the order they fit together.
  3. 3Link them so the account can be followed.
  4. 4Stop before a reason you were not asked for.

Biology exemplar

Original question

Describe how air is brought into the lungs. Do not explain gas exchange.

Annotated answer

WhatThe diaphragm contracts and flattens, and the external intercostal muscles raise the ribs. Next pointThe thorax volume increases, and the pressure inside falls below the pressure outside. StopAir moves in. Gas exchange at the alveoli is not added, because it was not asked.

The labels match the frame. Read them in order. This is one accurate route, not the only one.

Exam habit

If the question says describe, finish the account before you start explaining why.

Common pitfall

Writing “you need oxygen, so the lungs get bigger” instead of the sequence of inhalation.

Exam-style question

5 marks

Based on a sample question

Mark points shown after marking

Describe the roles of RNA in the synthesis of collagen.

(5)

Total for this question: 5 marks

Answer discussion

A linked account names how the sequence is carried out of the nucleus, how amino acids are brought to it, and how they are held so peptide bonds can form. “RNA is involved” is too thin.

Where this comes from

Unit 1 sample paper. Question 7 (a) asks you to describe the roles of RNA in the synthesis of collagen. Sample assessment, not a live paper.

Sample paper WBI11/01, question 7 (a) (5 marks), 2017 sample assessment. Question page · Mark scheme page

Sources

Pearson Biology specification · Sample assessment PDF