CHEM 153A

Biochemistry: Introduction to Structure, Enzymes, and Metabolism

Chemistry and Biochemistry · 4 units · Undergraduate upper division (100-199)

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Recommended: Life Sciences 2, 3, and 23L, or 7A. Structure of proteins, carbohydrates, and lipids; enzyme catalysis and principles of metabolism, including glycolysis, citric acid cycle, and oxidative phosphorylation.

P/NP or letter grading.

When it runs

Fall 2025
Winter 2026
Spring 2026
Summer 2026
Fall 2026
Winter 2027
Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.

Checking the Schedule of Classes…

Requisites

Official UCLA wording
Requisite: course 14D or 30B, with grade of C– or better.

BruinTree reads · Prerequisite

confidence 1.00 · from text

grade C- or better in

one of
- CHEM 14D
- CHEM 30B

Requires

Everything that has to come before this course, not just the courses named in the requisite above.

CHEM 153A

CHEM 14DOrganic Reactions and Pharmaceuticals
- CHEM 14CStructure of Organic Molecules
  - CHEM 14BGeneral Chemistry for Life Scientists II7 more beneath
CHEM 30BOrganic Chemistry II: Reactivity, Synthesis, and Spectroscopy
- CHEM 30AOrganic Chemistry I: Structure and Reactivity
  - CHEM 20B

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

CHEM 153A21 more beyond

CHEM 103Environmental Chemistry
CHEM C105Introduction to Chemistry of Biology
CH ENGR CM127Synthetic Biology for Biofuels
CHEM C108Mass Spectrometry for Chemists and Biochemists
CHEM CM127Synthetic Biology for Biofuels