Author Capstone Axis

Understanding Plant Respiration: Key Notes 🌿 ⚡ How Mitochondria Make ATP Mitochondria use a proton gradient to power ATP production with ATP synthase (Complex V). This complex has two parts: 🔹 F₁: The “head” that builds ATP from ADP + inorganic phosphate. 🔹 F₀: The tunnel in the inner membrane letting protons (\(4H^+\) per ATP!) […]

Respiration Pathways & Respiratory Quotient Fermentation vs. Aerobic Respiration 🍞💨 Glucose breakdown: Fermentation only partially breaks down glucose → Aerobic respiration fully breaks it into CO2 + H2O ATP production: Fermentation makes only 2 ATP molecules per glucose → Aerobic respiration makes way more ATP! 🚀 NADH recycling: NADH → NAD+ happens slowly in fermentation

Aerobic Respiration Notes Aerobic Respiration Notes 🌿💨 What is Aerobic Respiration? It’s the complete breakdown of food using oxygen 🫧. This happens in mitochondria (the cell’s powerhouse) and releases: CO₂ (carbon dioxide) Water (H₂O) LOTS of energy (stored as ATP) 🔑 Key goal: Make ATP for cellular activities! 4 Steps of Aerobic Respiration 1. Pyruvate

🌱 Respiration in Plants Plants breathe too! Even big plants let gases move easily because: Every living cell is close to the surface 🌿 Woody stems? Living cells hide under bark with tiny holes (lenticels) Air spaces between cells help gases spread like a network 🌀 🔥 Glucose Breakdown: The Big Picture When cells burn

Fermentation & Respiration in Plants 🌱 1. Three Ways Cells Handle Pyruvic Acid After glycolysis, cells choose one path: 🥛 Lactic acid fermentation (bacteria/muscles) 🍞 Alcoholic fermentation (yeast) 💨 Aerobic respiration (requires oxygen!) 2. Fermentation: Quick Energy Without Oxygen 🍞 Alcoholic Fermentation (Yeast): Pyruvic acid → CO₂ + Ethanol Enzymes: Pyruvic acid decarboxylase + Alcohol

Plant Respiration Notes 🌱💨 1. What is Respiration? Plants break down food inside their cells to release energy. This process is called cellular respiration. 🌿 Food sources: Mostly carbohydrates, but sometimes proteins, fats or organic acids 🔋 Energy storage: Energy is released slowly and stored as ATP (the cell’s energy currency) 💡 Why ATP?: Cells

🌱 Photosynthesis: C3 vs C4 Plants & Photorespiration Here’s a simple breakdown of how plants make food and why some are more efficient than others! 🔬 Photorespiration: The “Oops” Moment in Plants What is it? A process where plants use oxygen instead of carbon dioxide during photosynthesis. • Happens only in C3 plants (like wheat,

Factors Affecting Photosynthesis Photosynthesis depends on internal factors (inside the plant) and external factors (environment). The slowest factor at any time controls the overall rate! ⏱️ ⚖️ Key Rule: Law of Limiting Factors When many factors affect a process, the one closest to its lowest needed level controls the speed. For example: Even with perfect

C4 Pathway and Photorespiration 🌱 Calvin Cycle Recap To make one glucose molecule via the Calvin cycle: 🌿 Requires 6 turns of the cycle. 🔋 Uses 18 ATP and 12 NADPH. 💨 Takes in six CO2 molecules. 🔄 Outputs: Glucose, 18 ADP, and 12 NADP. Cyclic phosphorylation helps balance ATP/NADPH needs! 🌞 What Makes C4

Photosynthesis: The Electron Transport Adventure! 🌱 Light Reaction Basics When plants soak up sunlight, they kickstart the “light reactions”! This phase includes: ☀️ Light absorption 💧 Water splitting 💨 Oxygen release ⚡ Making energy-packed molecules: ATP and NADPH 🌈 Photosystems: Nature’s Solar Panels Plants have two photosystems (PS I and PS II) with special chlorophyll