Name: _________________________________________________ Date: _______________ Period: ________ Biology Notes: Fermentation Directions: Fill in the blanks as we cover the topic in the PowerPoint. Step 1: Glycolysis • Where? In ______________________ • What happens? a) ____________________ (from our food) is ______________ down into 2 ________________________ (2 — 3 carbon molecules) b) 2 ____________ molecules released for _____________________ processes What’s after Glycolysis? • Glycolysis - Creates: _______________ and 2 ___________________ (2 — 3 carbon molecules) - Leads to either: 1) Aerobic Respiration (cellular respiration) • With _________________________ present • _________________________ Cycle • _________________________ transport chain 2) Anaerobic Respiration (fermentation) • _________________________ oxygen • _________________________ • Allows ___________________ to ____________________ Step 2: Fermentation • Two Types of Fermentation (both ________________________): a) Lactic ____________________ fermentation – Performed by animals when ____________________ cells are not receiving oxygen – ______________________________ waste created b) Alcoholic fermentation – Performed by yeast, some plants, bacteria – ______________________________ waste created Additional Information
Lactic Acid vs. Alcoholic Fermentation Alcoholic Lactic Acid • Location: ______________________ • Location: ______________________ • Amount of ATP created: __________ • Amount of ATP created: __________ • The Point? Make molecules to restart • The Point? Make molecules to restart ______________________________ ______________________________ • Waste: ________________________ • Waste: ________________________ Aerobic Respiration Where? In the mitochondria Steps? Kreb’s cycle and electron transport Glycolysis chain Where? In the cytoplasm What happens? 2 Pyruvate (2 ‐ 3 carbon What happens? molecules) create up to 36 ATPs • Glucose is split into 2 Pyruvate (2 ‐ 3 carbon molecules) • 2 ATP created Fermentation Where? In the cytoplasm What happens? • Pyruvate (2 ‐ 3 carbon molecules) are broken into either lactic acid or alcohol • Molecules to restart glycolysis created (No ATP) The Maple Center Counseling Safe Rides are available on Friday & Saturday nights from 10:00 pm to 2:00 am for teens living in Beverly Hills. High school students can call for a free ride home when they are under the influence of drugs &/or alcohol. When the teenager calls the Safe Rider #, the TMCC counselor assigned to the 24‐hour HELP‐LINE arranges for that teen to be picked up by the Beverly Hills Cab Company & taken home. Services are confidential. Call (888) 654‐3211 for a free ride home. Review 1) Name the two types of fermentation. a) _____________________________________ b) ____________________________________ 2) How much ATP does glycolysis create? ____________________ 3) How much ATP does fermentation create? _________________ 4) Which molecule is broken down during glycolysis? ______________________________ 5) A buildup of which molecule causes sore muscles? ______________________________ 6) Which waste molecules are created by alcoholic fermentation? ___________________________________ 7) Which waste molecules are created by lactic acid fermentation? __________________________________ 8) Circle answer: Fermentation is aerobic or anaerobic a) What does this mean? ___________________________________________________________ 9) Why is aerobic respiration preferred vs. fermentation? _______________________________________________________________________________________