UCLA LS 7A: Cell and Molecular Biology
LS 7A is the first course in UCLA's Life Sciences core, covering cell structure, energy and metabolism, the central dogma, and cell signaling. It's the gateway for every life-science major and the pre-med masses, taught flipped-classroom style with pre-class videos and in-class active learning.
Fennie is independent and not affiliated with UCLA. This is an unofficial study guide.
What makes it hard
The flipped format front-loads work: skip the pre-class prep and the in-class clicker sessions become useless. Exams emphasize applying concepts to novel experimental scenarios rather than recall, which blindsides students who memorized the videos, and the pre-med population keeps grade pressure high.
What you'll cover
- • Cell structure and membranes
- • Energy, enzymes, and metabolism
- • DNA replication and the central dogma
- • Gene expression and regulation
- • Cell signaling
- • Experimental design and data interpretation
The LS 7A study guide
How to study for UCLA LS 7A, step by step.
- 1
Never skip the pre-class videos
LS 7A's flipped classroom front-loads the work: arrive unprepared and the in-class clicker sessions become useless. Watch the videos and complete the pre-class assignments before every single session.
- 2
Study straight from the learning objectives
Exam questions map to the published learning objectives. Turn each objective into a question you can answer from memory, and you've effectively built the exam blueprint.
- 3
Treat clicker sessions as exam practice
The in-class questions preview the applied, scenario-based exam style. Commit to an answer before discussing, and chase down every question you got wrong the same day.
- 4
Practice applying mechanisms to new experiments
Exams present unfamiliar experimental scenarios, so memorizing the videos isn't enough. For each mechanism, ask what experiment would test it and what result you'd predict. That's the question format.
Today
Today's LS 7A plan
What a Fennie Daily Plan looks like for LS 7A. Yours is built from your own syllabus and adapts every day to your deadlines and progress.
First plan free, no card required. Fennie is independent and unaffiliated with your school.
FAQ
Is LS 7A hard at UCLA?
It's demanding through volume and exam style rather than conceptual depth. Exams test application to unfamiliar experimental scenarios, so memorization alone underperforms. Students who do the pre-class work consistently and practice applying concepts do well.
How should I study for LS 7A exams?
Study from the learning objectives, since exam questions map to them, and practice with scenario-based questions, not just flashcards. For each mechanism, ask what experiment would test it and what result you'd predict; that's the exam format.
What comes after LS 7A?
LS 7B (genetics, evolution, and ecology) and LS 7C (physiology and human biology) complete UCLA's Life Sciences core sequence, followed by upper-division coursework in your specific major.
More UCLA courses
LS 7B: Genetics, Evolution, and Ecology
LS 7B is the second course in UCLA's Life Sciences core, covering Mendelian and population genetics, the mechanisms of evolution by natural selection, and population, behavioral, and community ecology. Like the rest of the 7-series it's taught flipped-classroom, with pre-class videos feeding in-class active learning.
LS 7C: Physiology and Human Biology
LS 7C is the final course in UCLA's Life Sciences core, covering the organization of cells into tissues and organs and the physiology of the major organ systems, with an introduction to human genetics and genomics. It completes the 7-series and is the bridge to upper-division physiology and pre-health coursework.