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1 Name: _____Date:_____Period:_____ photosynthesis and cellular respiration Topic: photosynthesis How do cells make food? 1. photosynthesis occurs in the Chloroplast. 2. Producers (plants) need the reactants, Carbon Dioxide and Water and energy from the Sun. 3. The products of photosynthesis are glucose which is a sugar used for energy and oxygen gas. B. Chlorophyll/green pigment captures light energy C. Chloroplasts are in photosynthetic organisms, but they are not found in fungal and animal cells. A. Inside plants glucose is produced from reactants. B. CO2 + H2O + Sunlight Energy make sugar/food. C. Light energy is converted to chemical energy. A. Glucose chemical formula: C6H12O6, Oxygen: O2 B. Energy is stored in the carbon bonds of glucose. C. Excess glucose is stored as starch/glycogen. Topic: cellular respiration How do cells get energy from food? 1. cellular respiration takes place in the Mitochondria.

2 2. The mitochondria need the reactants glucose and oxy gen. 3. The products of cellular respiration are energy (ATP) and carbon dioxide, and water. ANSWER KEY A. Sunlight energy powers photosynthesis . Main Ideas Main Ideas Supporting Details Supporting Details A. Process of breaking down sugars/food to give cells energy B. Mitochondria are in plant and animal cells. C. First glucose is broken down in the cytoplasm to form two 3-Carbon high energy molecules. A. Oxygen is used to break down the two carbon molecules to make ATP (Adenosine tri-phosphate.) B. ATP has chemical energy stored in the phosphate bonds. C. Mitochondria are the power houses of the cell because they get the energy out of the food in a form cells can use. for our cells to A. CO2 released when carried to the lungs upon exhalation. B. Some energy is transferred to the environment as heat. C. cellular respiration is almost the reverse reaction of photosynthesis .

3 The only difference is in the form of energy. Sunlight energy is transformed to chemical energy. 4 Copyright-All rights reserved