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Enzyme Practice

Authored by Amanda Miller

Biology

9th - 12th Grade

NGSS covered

Used 791+ times

Enzyme Practice
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This quiz covers enzyme structure and function within the context of high school biology, specifically targeting grades 9-12. The questions assess fundamental concepts of enzyme biochemistry, including enzyme classification as proteins, the lock-and-key model of enzyme specificity, the role of active sites in substrate binding, and how enzymes lower activation energy to catalyze reactions. Students need to understand that enzymes are reusable biological catalysts with specific substrate preferences, and they must be able to interpret enzyme activity graphs showing optimal temperature conditions. The quiz also tests knowledge of enzyme denaturation due to heat, enzyme nomenclature (the -ase suffix), and real-world applications like catalase activity in liver tissue. Several review questions reinforce broader macromolecule concepts, requiring students to distinguish between proteins, lipids, carbohydrates, and nucleic acids based on their structural components and functional properties. Students must demonstrate both factual recall and analytical thinking to interpret diagrams and experimental scenarios. Created by Amanda Miller, a Biology teacher in the US who teaches grades 9-12. This comprehensive enzyme assessment serves multiple instructional purposes throughout a biochemistry unit, functioning effectively as a pre-assessment to gauge prior knowledge, formative assessment during instruction, or summative review before major exams. Teachers can deploy this quiz as a warm-up activity to activate prior learning, assign it for homework to reinforce daily lessons, or use it as guided practice during enzyme laboratory investigations. The mixed question format, including diagram interpretation and real-world applications, makes it particularly valuable for differentiated instruction and preparing students for standardized assessments. This quiz directly supports NGSS standards HS-LS1-6 (constructing explanations for how carbon compounds are used to store and release energy) and Common Core literacy standards in scientific texts, while also aligning with state biology standards focused on molecular biology and biochemical processes.

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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Enzymes are...

Nucleic Acids
Proteins
Lipids
Carbohydrates

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which of the following binds to an active site of an enzyme?

Substrate
Product
Codon
None of these

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An enzyme speeds up a chemical reaction in the cell, but can only be used once.

True
False

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Enzymes speed up a chemical reaction by...

destroying products
lowering activation energy
increasing activation energy
allowing reactions to process at their own speed

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which substrate would this enzyme catalyze?

Δ
σ
μ

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An enzyme and its substrates are often referred to a ________________________ shape.

misfit
fan & air
balloon & string
lock & key

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Any substrate that is acted upon by an enzyme is called a(n)

substrate
reactant
nucleic acid
both a & b

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