University:
University of Ottawa
Course:
BIO1140 | Introduction to Cell Biology
Academic year:

2024
Views:

483

Pages:

7
Author:

Noodle D.

RESPIRATION IN PLANTS Respiration: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O Glucose + Oxygen → Carbon dioxide + Water ATP → High Energy Phosphate Bond Glucose (C₆H₁₂O₆) Universal Sugar ATP ← Glycolysis/Cytoplasm → ATP Step 1 Step 2 (No of oxygen present) (Oxygen present) Fermentation (Yeast) Oxidative respiration Anaerobic Aerobic Ethanol + 137 ATP ← Yeast poisoning ← Electron transport chain Muscle → Lactic Acid ↑ CO₂ + H₂O + ATP TYPES OF RESPIRATION Aerobic Respiration Anaerobic Respiration 36-38 ATP 2 ATP Shuttle System Eukaryotic cell Malate Aspartate → 38 ATP Glyceraldehyde-3-phosphate → 36 ATP Date: 2023-11-22 Respiration Feature Anaerobic Aerobic Reactants Glucose Glucose and oxygen Combustion Incomplete Complete Energy Yield Low (2 ATP) High (36-38 ATP) Products Animals: Lactic acid
Yeast: Ethanol + CO₂ CO₂ and H₂O Location Cytoplasm Cytoplasm and mitochondria Stages Glycolysis, Fermentation Glycolysis, Link reaction, and ETC Glycolysis Glucose --Hexokinase--> Glucose-6-phosphate --Isomerase--> Fructose-6-phosphate ADP + Pi ↑ ↓ ADP + Pi Fructose-1,6-bisphosphate --Phosphofructokinase (R.L.S.)-- ↓ Aldolase Dihydroxyacetone phosphate ⇌ Glyceraldehyde-3-phosphate (3C + 1 PO₄) (3C + 1 PO₄) Date: 2023-11-22 Glycolysis Glucose + 2 ATP → Glucose-6-Phosphate ↓ Fructose-6-Phosphate ↓ Fructose-1,6-bisphosphate ↓ Dihydroxyacetone phosphate ⇌ Glyceraldehyde-3-phosphate ↓ 1,3-Bisphosphoglyceric acid ↓ 3-Phosphoglyceric acid ↓ 2-Phosphoglyceric acid ↓ Phosphoenol pyruvate ↓ Pyruvic acid + 2 ATP Net Gain: 2 ATP + 2 NADH + 4 ATP Major pathways of anaerobic respiration: Glucose → 2 ATP ↓ Glyceraldehyde-3-Phosphate ↓ NADH 3-Phosphoglyceric acid ↓ Phosphoenol pyruvate ↓ Pyruvic acid (3C) + NADH + H+ ↓ Lactic acid + NAD+