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  3. AP Biology CRAM โ€“ Unit 3: Cellular Energetics

ap biology cram โ€“ unit 3: cellular energetics

originally streamed in 2019 with Caroline KoffkeTeacher
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Review cellular energetics for your AP Biology exam with this complete Unit 3 cram session. We break down enzymes, ATP, cellular respiration, and photosynthesis with clear explanations and exam-focused insights. This live review session walks throug ...more

timestamps

  • 0:00

    Welcome and Introduction

  • 0:37

    Upcoming Events and Resources

  • 1:07

    Social Media and New Content

  • 1:38

    Session Overview

  • 2:39

    Exam Format Reminders

  • 3:40

    Enzyme Basics

  • 4:43

    Enzyme-Substrate Complex

  • 5:45

    Activation Energy Graphs

  • 7:48

    Temperature and Denaturation

  • 8:48

    Enzyme Structure and Specificity

  • 10:19

    Protein Denaturation

  • 10:52

    Factors Affecting Enzymes

  • 14:33

    Peptide Bonds Explanation

  • 17:07

    Enzyme Naming Convention

  • 19:12

    Energy Conservation Laws

  • 20:14

    ATP Structure and Function

  • 23:51

    Phosphorylation Process

  • 24:23

    Cellular Respiration Overview

  • 26:27

    Glycolysis Steps

  • 30:37

    Pyruvate Oxidation

  • 34:47

    Electron Carrier Recycling

  • 36:22

    Aerobic Respiration

  • 38:56

    Krebs Cycle

  • 42:01

    Acetyl-CoA in Krebs

  • 43:02

    Electron Transport Chain

  • 46:39

    ATP Synthase Mechanism

  • 51:47

    Photosynthesis Purpose

  • 53:51

    Light Reactions Overview

  • 57:30

    ATP Production in Photosynthesis

  • 59:34

    Electron Flow in Photosynthesis

  • 1:00:37

    Calvin Cycle

  • 1:02:41

    Light and Dark Reactions Link

  • 1:03:43

    Session Summary and Resources

  • 1:05:18

    Final Q&A and Goodbye

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APยฎ and SATยฎ are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

every AP exam is fiveable

Fiveable
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Study GuidesFRQs + AI ScoringAI Grading for TeachersPractice QuestionsGlossaryScore Calculators
Company
What's New?PricingBulk DiscountsTestimonialsFAQsEmail us
Resources
AP Exam Schedule 2026AP ClassesAP ClassroomEasiest AP ClassesHardest AP ClassesAP vs IBAP vs Dual EnrollmentAP vs Honors ClassesAP Scholar Awards
history
๐ŸŒŽ ap world history๐Ÿ‡บ๐Ÿ‡ธ ap us history๐Ÿ‡ช๐Ÿ‡บ ap european history
social science
โœŠ๐Ÿฟ ap african american studies๐Ÿ—ณ๏ธ ap comparative government๐Ÿšœ ap human geography๐Ÿ’ถ ap macroeconomics๐Ÿค‘ ap microeconomics๐Ÿง  ap psychology๐Ÿ‘ฉ๐Ÿพโ€โš–๏ธ ap us government
english & capstone
โœ๐Ÿฝ ap english language๐Ÿ“š ap english literature๐Ÿ” ap research๐Ÿ’ฌ ap seminar
arts
๐ŸŽจ ap art & design๐Ÿ–ผ๏ธ ap art history๐ŸŽต ap music theory
science
๐Ÿงฌ ap biology๐Ÿงช ap chemistryโ™ป๏ธ ap environmental science๐ŸŽก ap physics 1๐Ÿงฒ ap physics 2๐Ÿ’ก ap physics c: e&mโš™๏ธ ap physics c: mechanics
math & computer science
๐Ÿงฎ ap calculus abโ™พ๏ธ ap calculus bc๐Ÿ“Š ap statistics๐Ÿ’ป ap computer science aโŒจ๏ธ ap computer science p
world languages
๐Ÿ‡จ๐Ÿ‡ณ ap chinese๐Ÿ‡ซ๐Ÿ‡ท ap french๐Ÿ‡ฉ๐Ÿ‡ช ap german๐Ÿ‡ฎ๐Ÿ‡น ap italian๐Ÿ‡ฏ๐Ÿ‡ต ap japanese๐Ÿ›๏ธ ap latin๐Ÿ‡ช๐Ÿ‡ธ ap spanish language๐Ÿ’ƒ๐Ÿฝ ap spanish literature

go beyond AP

high school exams
โœ๏ธ PSAT๐ŸŽ“ Digital SAT๐ŸŽ’ ACT
honors classes
๐Ÿฌ honors algebra II๐Ÿซ€ honors anatomy๐Ÿ‡ honors biology๐Ÿ‘ฉ๐Ÿฝโ€๐Ÿ”ฌ honors chemistry๐Ÿ’ฒ honors economics๐Ÿ“ honors geometryโšพ๏ธ honors physics๐Ÿ“ honors pre-calculus๐Ÿ“Š honors statistics๐Ÿ—ณ๏ธ honors us government๐Ÿ‡บ๐Ÿ‡ธ honors us history๐ŸŒŽ honors world history
college classes
๐Ÿ‘ฉ๐Ÿฝโ€๐ŸŽค arts๐Ÿ‘” business๐ŸŽค communications๐Ÿ—๏ธ engineering๐Ÿ““ humanitiesโž— math๐Ÿง‘๐Ÿฝโ€๐Ÿ”ฌ science๐Ÿ’ถ social science
hs classes
๐Ÿ›๏ธ alabama historyโ›ฐ๏ธ appalachian studies๐ŸŒด california history๐ŸŒ earth science๐ŸŒ ethnic studies๐ŸŠ florida history๐Ÿ‘ georgia history๐ŸŒŽ global studies๐ŸŒบ hawaiian studies๐Ÿ“ฐ journalism๐Ÿชถ native american studies๐ŸŒต new mexico history๐Ÿค  oklahoma historyโš—๏ธ physical science๐ŸŽ™๏ธ speech and debate๐Ÿค texas government๐Ÿค  texas history๐ŸŒฒ washington state history๐Ÿ•Š๏ธ world religions
RefundsTermsPrivacyCCPA
ยฉ 2026 Fiveable Inc. All rights reserved.
APยฎ and SATยฎ are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.