Lecture Notes: Announcements and Course Adjustments Due to Storm

Announcements Overview

• There is a storm predicted to impact Florida, requiring preparedness and adjustments.
• Office hours may be canceled; a quiz has been extended until October 15th.
• Exam 3 is canceled for Wednesday; UCF closed from Tuesday to Thursday.
• Expect power outages; safety is the priority.
• Students advised to evacuate if necessary; lecture is recorded for later review.

Course Adjustments

• Quiz and Exam Extensions:
  • Quiz due today extended until at least October 15th.
  • Exam 3 canceled and may open for a week once power is back.
• Classes and Units:
  • If power is restored by Friday, classes will continue into Unit 4.
  • Exam 3 will be taken outside of class to avoid falling behind.
• Extra Credit and Assignments:
  • All deadlines extended due to storm chaos.
  • Important to prioritize safety over academic deadlines.

Exam Review and Content

• Topics Covered:
  • 10 questions from Chapter 8, 11 from Chapter 9, 3 from Chapter 10, 6 from Cellular Poisons.
  • Key concepts in cellular respiration and the role of mitochondria.
• Cellular Respiration Highlights:
  • Glycolysis, Krebs Cycle, Electron Transport Chain.
  • Substrate-level phosphorylation in glycolysis and Krebs cycle.
  • Oxidation/reduction in cellular processes.

Important Details

• ATP Production:
  • Glycolysis: 2 ATP, Krebs Cycle: 2 ATP, Electron Transport Chain: 34 ATP (total 38 ATP/glucose).
• Enzyme Functions and Inhibition:
  • Competitive vs. non-competitive inhibition.
  • Negative feedback and enzyme regulation.

Cellular Poisons and Safety

• DNP and Cyanide:
  • DNP makes membranes leaky, causing overheating.
  • Cyanide blocks cytochrome A3, inhibiting oxygen uptake.

Energy Concepts

• Delta G and Activation Energy:
  • Delta G (free energy) remains constant through reactions.
  • Activation energy can be lowered with enzymes.
• Thermodynamics:
  • Energy is never created or destroyed; only transformed.

Safety and Preparedness

• Students advised to listen to evacuation orders and prepare for potential power outages.
• UCF buildings are strong but prepare for storm conditions.
• Communication might be disrupted during outages; patience is encouraged.

Key Reminders

• Prioritize safety over academic responsibilities.
• Academic deadlines will be adjusted based on storm impact.
• Stay informed on storm developments and university announcements.