Class 9 Biology · Chapter 7 · Test 2

Enzyme Structure and Uses

25 MCQs on enzyme chemical nature, globular structure, specificity, intracellular and extracellular enzymes, cofactors, prosthetic groups, coenzymes, enzyme complexes, and industrial applications.

MCQs

25 questions · 20 min · 25 marks

Want to try first? Take the free Biology test: Biology Branches 1

Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
Enzymes are primarily composed of:
- AProteins
- BLipids
- CCarbohydrates
- DNucleic acids
Show answerHide answer
Answer: A
The textbook states that enzymes are primarily proteins.
Question 2
Typically, enzymes contain approximately:
- A10 to 50 amino acids
- B50 to 100 amino acids
- C100 to 1,000 amino acids
- D1,000 to 2,000 amino acids
Show answerHide answer
Answer: C
The textbook states that enzymes typically contain 100 to 1,000 amino acids.
Question 3
Enzymes possess a three-dimensional:
- AGlobular structure
- BLinear structure
- CDouble-stranded structure
- DFibrous wall
Show answerHide answer
Answer: A
The textbook states that enzymes possess a three-dimensional globular structure.
Question 4
The globular structure of an enzyme allows it to form:
- AActive sites
- BCell walls
- CNucleotides
- DFatty acids
Show answerHide answer
Answer: A
The globular structure allows enzymes to form active sites that bind specifically to substrates.
Question 5
Enzymes are highly specific to the reactions they:
- ACatalyse
- BInhibit
- CStore
- DTransport
Show answerHide answer
Answer: A
The textbook states that enzymes are highly specific to the reactions they catalyse.

More tests in Enzymes

Practise with a free account

Save your scores, see which chapters need work, and keep a notebook of every question you got wrong.

Create free account