Skip to content

Course home

Sign up

2.2 Animal tissues, organs and organ systems

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123
Question 118
F

The table shows the pH at which each of four protein-digesting enzymes works fastest. Which enzyme is most likely to have come from the stomach of a human?

Table: The pH at which each of four protein-digesting enzymes works fastest

EnzymepH at which the enzyme works fastest
W7.4
X5.5
Y2.0
Z8.5
[1]
A

Enzyme W

B

Enzyme X

C

Enzyme Y

D

Enzyme Z

Markscheme

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank