◈ Oracle Prep Sign Up Free

O-LevelBiologyEnzymes5090/11 · Oct/Nov 2010 · Q91 Mark

Which chemical test shows the presence of an enzyme in a biological washing powder?

ABenedict's

Bbiuret

Cethanol emulsion

Diodine solution

✓ Correct answer

B: biuret

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Enzymes and see which topics are most likely to come up next.

Sign up free →

About this question

Topic: Enzymes, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2010 Paper 1 Variant 1, question 9.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Biology questions

EnzymesMay/June 20181m

In an enzyme's action, where is the active site and where are the lock and the key?

EnzymesMay/June 20191m

Which statement about enzymes is not correct?

EnzymesMay/June 20201m

Which substance is an enzyme?

RespirationOct/Nov 20171m

Which row shows the state of the muscles when breathing out as deeply as possible?

Transport in HumansOct/Nov 20171m

Men sometimes develop an enlarged prostate gland. How might this affect urination?

Coordination & ResponseOct/Nov 20171m

Which structure does not have its muscles arranged antagonistically?

← Browse all past-paper questions