GROUP 5 PHOTOSYNTHESIS & RESPIRATION A Comparative Report
Reporters Jhay Raffaello M. Escalicas Rayven G. Pataganao Rasmea Dugenia
OBJECTIVES At the end of our report, you will be able to: Understand the process of photosynthesis and cellular respiration. Know the similarities and differences of photosynthesis and cellular respiration.
TABLE OF CONTENTS Photosynthesis Cellular Respiration Comparing Photosynthesis and Cellular Respiration 01 02 03
PHOTO- SYNTHESIS 01
PHOTOSYNTHESIS Is a process which is done by plants to make their own food. It is the process where plants convert solar energy to food. It also provides us oxygen for breathing.
THE CHLOROPHYLL The green pigment found in the chloroplasts of plants. It is a fundamental component of photosynthetic organisms, allowing them to harness light energy and convert it into the chemical energy necessary for growth, metabolism, and survival WHAT IS IT?
TWO MAIN STAGES OF PHOTOSYNTHESIS LIGHT-DEPENDENT REACTION LIGHT-INDEPENDENT REACTION (CALVIN CYCLE)
LIGHT-DEPENDENT REACTION Happens in the presence of light. It occurs in the thylakoid membrane and converts light energy to chemical energy. The energy harvested during this stage is stored in the form of ATP (Adenosine Triphosphate ) and NADPH ( Nicotinamide Adenine Dinucleotide Phosphate Hydrogen). These products will be needed in the next stage to complete photosynthetic process.
LIGHT-INDEPENDENT REACTION (Calvin Cycle) Is a process that takes place in the stroma and converts Carbon Dioxide (CO2) into sugar. This stage does not directly need light but needs the products of light reaction. This is why it occurs immediately after light-dependent phase.
CHEMICAL REACTION FOR PHOTOSYNTHESIS Carbon Dioxide + Water Chlorophyll Glucose + Oxygen _________ (CO2) (H2O) Sunlight (C6H12O6) (O2)
Cellular Respiration 02
CELLULAR RESPIRATION Is the proces s by which cell break down glucose and other organic molecules to produce ATP (Adenosine Triphosphate ), which is the energy currency of the cell. It occurs in the mitochondria of eukaryotic cells. This process generates heat.
STEPS OF CELLULAR RESPIRATION Glycolysis : occurs in the cyptoplasm , where glucose is broken down into pyruvate , producing a small amount of ATP and NADPH. Krebs Cycle (Citric Acid Cycle): Takes place in the mitochondria, generating more ATP, NADPH, FADH2, AND CO2. Electron Transport Chain: In the mitochondria, it produces the bulk of ATP through oxidative phosphorylation .
RESPIRATION Occur s in the mitochondria of eukaryotic cells and can occur in the cyptoplasm in the case of anaerobic respiration. It converts chemical energy from glucose and other organic molecules into ATP (Adenosine Triphosphate ), the cell’s energy currency. It produces Carbon Dioxide, Water, and ATP. It is an exothermic (energy-releasing) process.
EQUATION FOR RESPIRATION Glucose + Oxygen Carbon Dioxide + Water + ATP
03 Comparing Photosynthesis and Cellular Respiration
COMPARING REACTANTS AND PRODUCTS ENERGY CONVERSIONS Photosynthesis converts light energy into chemical energy into chemical energy, while respiration converts chemical energy (from glucose) into ATP. Photosynthesis uses carbon dioxide and water to produce glucose and oxygen, while respiration uses glucose and oxygen to produce carbon dioxide, water and ATP. LOCATION Photosynthesis primarily occurs in chloroplasts, whereas respiration takes place in the mitochondria (in eukaryotes). Photosynthesis is endothermic, absorbing energy, whereas respiration is exothermic, releasing energy. ENERGY TRANSFER
COMPARING INTERDEPENDENCE These processes are interdependent in the carbon cycle, with the oxygen produced in photosynthesis being used in respiration and vice versa.
RESPIRATION VS PHOTOSYNTHESIS BASIS RESPIRATION PHOTOSYNTHESIS CELL STRUCTURE INVOLVED MITOCHONDRIA CHLOROPLAST STARTING MATERIALS/ RAW MATERIALS OXYGEN/SUGAR CARBON DIOXIDE/WATER END PRODUCT CARBON DIOXIDE/WATER OXYGEN/SUGAR ENERGY RECQUIREMENT CHEMICAL ENERGY LIGHT ENERGY
SUMMARY Photosynthesis and respiration are interrelated processes that play crucial roles in the energy flow within ecosystems. Photosynthesis captures and stores energy, while respiration releases that stored energy for use by living organisms.