Skip to content
Contents

Part 3 of 3

Page 03

Text size

100%

Muscles and the oxygen debt

state

Try it yourself

Complete the word equation for anaerobic respiration in muscles during vigorous exercise.

state: give a concise answer.

Fill the gaps
Your saved work

Answers, earlier attempts and your Pause and check notes stay in this browser. Export a copy to keep, to move to another device or to hand to your teacher. Importing a copy keeps your current answers and adds earlier attempts.

Scope and sources

Cambridge IGCSE Biology 0610 · 2026–2028 v3 · Original learning materials.

The uses of energy in living organisms (12.1.1); investigating the effect of temperature on respiration in yeast (12.1.2); aerobic respiration and its word equation (12.2.1, 12.2.2) and balanced equation (Supplement 12.2.3); anaerobic respiration, much less energy per glucose molecule, the word equations in yeast and in muscles (12.3.1–12.3.4) and the balanced equation in yeast (Supplement 12.3.5); lactic acid and the oxygen debt, and how the debt is removed (Supplement 12.3.6, 12.3.7). The gas volumes in the experiment come from a teaching model.

Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.

Official Cambridge syllabus