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Biochemistry Vocabulary Introduction

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Biochemistry Vocabulary Introduction

Molecular structure illustration

🧬 Part 1: Vocabulary Matching

1. Match each biochemistry term with its correct definition by writing the letter in the circle.
Enzyme
Monomer
Polymer
Substrate
Peptide bond
A) A large molecule made of many repeating units
B) The molecule that an enzyme acts upon
C) A protein that speeds up chemical reactions
D) A single unit that can join with others to form larger molecules
E) The chemical bond that links amino acids together
2. Which of the following are the four major classes of biomolecules? (Check all that apply)

Carbohydrates

Lipids

Minerals

Proteins

Nucleic acids

Vitamins

📝 Part 2: Fill in the Blanks

3. Complete the sentences using the vocabulary words from the word bank.

Word Bank: macromolecule, monomer, polymer, enzyme, substrate

a) A ______________ is a large biological molecule that is essential for life.

b) Glucose is a ______________ that can be joined together to form starch.

c) Starch is a ______________ made up of many glucose units linked together.

d) An ______________ lowers the activation energy needed for a chemical reaction.

e) The ______________ fits into the active site of an enzyme like a key fits into a lock.

4. Give one example of each biomolecule class:

Carbohydrate: _________________

Lipid: _________________

Protein: _________________

Nucleic acid: _________________

🔬 Part 3: Apply Your Knowledge

5. Explain the relationship between monomers and polymers using a specific example from biochemistry.
6. Why are enzymes important in living organisms? Give at least two reasons.
7. Choose one biomolecule class and describe its main function in living things.

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