Photosynthesis SHS Molbio PDF

REVIEW Let’s CELL-ebrate!!  COLUMN A COLUMN B convert light energy into relatively stable ❑ Chloroplast chemical energy photosynthetic process...

REVIEW Let’s CELL-ebrate!!  COLUMN A COLUMN B convert light energy into relatively stable ❑ Chloroplast chemical energy photosynthetic process via the ❑ Chlorophyll provides protection for a cell ❑ Cell membrane a pigment that gives plants their green color ❑ mitochondria stores the cell's hereditary ❑ nucleus material powerhouse of the cell  Learning Objectives At the end of this lesson, learners should be able to ❖ Describe the major features and chemical events in photosynthesis ❖ Identify the role of chlorophyll and other pigments in the process of photosynthesis ❖ Exhibit a sense of responsibility in taking care of plants. PHOTOSYNTHESIS John Kevin R. Noche,LPT  Questions What are the reactants and products of the photosynthetic reactions? INSERT VIDEO  Guide Questions ✓ How do green plants capture energy from sunlight? ✓ Why are some plants green in color? ✓ What are the organic materials needed in the chemical reaction? ✓ What are the roles of chlorophyll in the process of photosynthesis? Materials needed in chemical reaction Sunlight water Carbon Dioxide PRODUCT Glucose and Oxygen Grana: stack of thylakoids Thylakoids: disc like structure Stroma: fluid space around the grana Thylakoid space: space inside the thylakoids Chlorophyll: pigment that absorbs sunlight  The absorption of light energy is made possible by the pigments found in the chloroplasts of leaf cells. This makes the leaves the most important part of the plant because it is the site of photosynthesis.  PHOTOSYSTEMS Antennal complex – light harvesting complex since it gathers photons and channel them to reaction centers Reaction centers – are where photochemical reactions occur  Photosystems Photosystem I Photosystem II They were named by the time they were identified not based on their sequence of use in the photosynthetic process  Materials needed in chemical reaction Carbon Dioxide Water Sunlight Despite being red, It’s the biggest planet It’s composed of Mars is a cold place in the Solar System hydrogen and helium Water is oxidized : looses its electrons  Photosynthetic Reactions Questions Light-dependent Reaction Because key words are great for Light-independent Reaction catching your audience’s attention  Light-dependent Light-independent takes place within the thylakoid also known as the Calvin Cycle membrane and requires a steady takes place in the stroma, stream of sunlight, hence the name does not require light, hence the light-dependent reaction. name light-independent reaction. During this stage, energy from the The chlorophyll absorbs energy from ATP and NADPH molecules is used the light waves, which is converted to assemble carbohydrate into chemical energy in the form of molecules, like glucose, from the molecules ATP and NADPH. carbon dioxide. Light dependent Reaction Photosystem II Photosystem II Photosystem II  Photosystem I END PRODUCT OF LIGHT DEPENDENT REACTIONS ATP AND NADPH – will be utilized in the Calvin cycle OXYGEN – waste product LIGHT INDEPENDENT REACTION Photosynthesis APPLICATION Collaborative Activity  TASK: Create an Information, Education, and communication (IEC) about one of the two current “Hot Topics” related to photosynthesis, either Deforestation or Global Warming. Content: Be sure to include the following items in your IEC. ✓Complete introduction of the topic including definition ✓Own Recommendations ✓Visual connection to photosynthesis (how topic is related to photosynthesis) ✓Inclusion of one scientist and a description of their contribution to the topic ✓Description of how topic affects society Upload your output in our facebook page and use the #LetEarthbreath #Savemotherearth  Grading: You will be graded using the following rubric: Criteria Total Points Points Earned Complete introduction of the topic including definition 10 Connection to photosynthesis (how this topic is related to photosynthesis) 30 Description of how topic affects society. 2 viewpoints presented 25 Recommendations Thoughtful 10 Supported by Research 5 Inclusion one scientist and a description 5 their contribution to the topic. 5 Attractiveness Neatness 5 Pictures 5 REFLECTION What is the importance of plants in our ecosystem? How plants help humans? PRACTICAL SCIENCE Seemingly unrelated to photosynthesis, all the products included in your meal can be traced to one vital process: Photosynthesis. Dairy and meat products can be traced back to animals that eat plants. Soda drinks have sugar, which is basically a molecule produced via photosynthesis. So each time you consume food, there is so much to thank photosynthesis for.  Thanks CREDITS: This presentation template was created by Slidesgo, including icons by Flaticon, and infographics & images by Freepik