Video · Cognito
A-Level Biology - Haemoglobin - Oxygen Dissociation Curve | Bohr Effect (2027/28 exams)
Total watch time
9m 44s
at 1× speed · exactly 9 minutes, 44 seconds at 1×
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[](https://playlistduration.com/video/_d7wBrrnGN0)HTML
<a href="https://playlistduration.com/video/_d7wBrrnGN0"><img src="https://playlistduration.com/badge/video/_d7wBrrnGN0.svg" alt="Length: 9m 44s" width="110" height="20"></a>Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.
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Data from the YouTube Data API as of 2026-10-27 (cached).