Question

. What are some of the major activities of peroxisomes?
What is the role of catalase in these activities?
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Answer 1

Explanation:

There is such a thing as a key chain, but 'chain of keys' doesn't sound right. 'Bunch of keys' is possible, or otherwise we'd use the all-purpose collective 'set'. A set of keys would be all the keys you'd need for a particular property (front door, back door, garage etc)

Answer 2

Answer:

it is your first answer and second answer

Explanation:

I hope it helps you