Photosynthesis Notes 2024 PDF

Name: Ke y Notes: Photosynthesis Class Period: Let's Review! Organelle Differences between PLANT CELLS and ANIMAL CELLS (both are EUKARYOTES):...

Name: Ke y Notes: Photosynthesis Class Period: Let's Review! Organelle Differences between PLANT CELLS and ANIMAL CELLS (both are EUKARYOTES): Plant Cells Animal Cells made of cellulose (a carbohydrate) AND a cell membrane Only has a cell membrane Has rigid cell wall Contain Chloroplasts for photosynthesis AND mitochondria to make ATP during respiration ATP NO chloroplasts, only mitochondria to make ATP during respiration If all living things use ATP as an energy carrier, then where did that energy originally come from? the sun How does the sun energy become useful to living organisms? → Through the process of photosynthesis by autotrophs (thank you  autotrophs! ) → Plants (autotrophs) store that energy in the chemical bonds of their food How does that chemical energy get released to make ATP? → Breaking the bonds of glucose (happens during respiration) What is the BIG PICTURE? (glucose) →A BIG IDEA we will learn is that photosynthesis produces GLUCOSE (in chloroplast) and that respiration uses GLUCOSE to make ATP (in mitochondria) SUN GLUCOSE → → photosynth esis cellular respiration SATP Where does photosynthesis occur?  Photosynthesis takes place in the organelle called: Chloroplast INSIDE the chloroplast there are molecules of Chlorophyll → a green pigment that absorbs Sun energy Which part of the plant? in the leaves/greenstems → There are tiny openings in leaf called stomata- → Stomata are where gases (CO2 O2) are exchanged Stonvata Photosynthesis is a chemical reaction Photosynthesis Equation Студен orygen carbon dioxide(gas) LIGHT 0 0 tx4,00 14 1109 ENERGY, Oxygen gas) + glucose Picture H H + Word Equation water Chemical Equation 6H20 + 6CO2 REACTANTS PRODUCTS "YIELD" L 602 +C6H12O6 Photosynthesis has 2 parts Light Required? What goes in? What comes out? (products) (reactants) LIGHT DEPENDENT YES water (light energy is used now  Oxygen gas H2O LIGHT INDEPENDENT NO (not directly) carbon dioxide (gas) Sugar (glucose) CO2 CHLOROPLAST ORGANELLE thylakoid stroma light energy NADP ADP light reactions ATP NADPH O2 light- Independent reactions  glucose Kgoal of photosynthes is: Photosynthesis Summary: Chlorophyll reflects green wavelengths from the sun, making plants look green. Other colors are absorbed and used for energy. Light energy Carbon dioxide CO2 enters through the stomata, an opening in the leaf's epidermis and cuticle. REACTANT S Water, CO, and Sunlight combine in the leaf to make sugar. Oxygen Oxygen and water vapor exit the leaf through the stomata. Water loss from leaves is called transpiration. PRODUC TS Water Water is absorbed through the roots and carried through the stem to the rest of the plant. A plant's roots replace water lost during transpiration keep mind  Excess sugar is stored as starch (food) in the roots Not all plant cells contain chloroplasts Structur e determines function! Only the parts of the plant exposed to sunlight need chloroplasts. o EX: Since leaves are exposed to sunlight, their cells would contain chloroplasts. Root cells would not contain chloroplasts since they are below ground.