General Biology 1 Past Paper (Q2 Week 1, Photosynthesis)

WEEKLY LEARNING ACTIVITY SHEETS =============================== Name: [ ] Grade and Section: [ ] Learning Competency: ==================== Specific Objectives: ==================== 1. Identify the pigments and the colors of light absorbed or reflected by the photosynthetic pigments; 2. Ex...

WEEKLY LEARNING ACTIVITY SHEETS =============================== Name: [ ] Grade and Section: [ ] Learning Competency: ==================== Specific Objectives: ==================== 1. Identify the pigments and the colors of light absorbed or reflected by the photosynthetic pigments; 2. Explain the importance of chlorophyll and other pigments in photosynthesis; and 3. Extract chlorophyll from commonly and locally found leaves and produce home-made chlorophyll powder. Key Concepts ============ - **Why are most plants green in color?** - What is chlorophyll? ==================== - What are other pigments found in plants? ======================================== Table 1. Photosynthetic Pigments in Plants and Other Phototrophic Organisms =========================================================================== -- -- -- -- -- -- -- -- -- -- - What is the role of pigments in photosynthesis? =============================================== - How does chlorophyll absorb light energy? ========================================= - How does chlorophyll transform light energy? ============================================ +-----------------------------------+-----------------------------------+ | - 75% is evaporated | | | | | | - 15% is reflected | | | | | | - 5% is transmitted through the | | | leaf | | | | | | - 4% is converted to heat | | | energy | | | | | | - 1% is used in photosynthesis | | +-----------------------------------+-----------------------------------+