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Cell Processes Photosynthesis and Cellular Respiration.

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Presentation on theme: "Cell Processes Photosynthesis and Cellular Respiration."— Presentation transcript:

1 Cell Processes Photosynthesis and Cellular Respiration

2 Metabolism  Sum of all the chemical reactions in a cell  Includes reactions that break down food to get energy for the cell  Includes reactions that take molecules and build bigger compounds to help the cell function  Sum of all the chemical reactions in a cell  Includes reactions that break down food to get energy for the cell  Includes reactions that take molecules and build bigger compounds to help the cell function

3 Producers  What is a producer?  An autotrophic organism  Autotrophic means the organism makes its own food from raw materials  Example: plants  Plants make their own food (sugars aka glucose, starch, cellulose aka carbohydrates!)  Plants create their own energy by making their own food  What is a producer?  An autotrophic organism  Autotrophic means the organism makes its own food from raw materials  Example: plants  Plants make their own food (sugars aka glucose, starch, cellulose aka carbohydrates!)  Plants create their own energy by making their own food

4 Cellular Process: Photosynthesis  Carried out by producers (autotrophs)  Inputs: carbon dioxide, water, energy from the sun  Outputs: glucose (sugar) and oxygen  Chemical equation: 6 CO H 2 O + light energy --> C 6 H 12 O O H 2 O Photosynthesis: photo = light; synthesis = putting simple things together to make something complex  Carried out by producers (autotrophs)  Inputs: carbon dioxide, water, energy from the sun  Outputs: glucose (sugar) and oxygen  Chemical equation: 6 CO H 2 O + light energy --> C 6 H 12 O O H 2 O Photosynthesis: photo = light; synthesis = putting simple things together to make something complex

5 Cellular Process: Photosynthesis  Photosynthesis: the process a plant (or other autotroph) goes through to convert sunlight and raw materials into food (sugar) for the plant Inputs Green plant (autotroph) Outputs CO 2 H2OH2O Sunlight Glucose (C 6 H 12 O 6 ) O2O2

6 Consumers  Organisms that get their food by eating other organisms and raw materials  Consumers are HETEROTROPHIC organisms: they cannot make their own food, they do not do the process of photosynthesis  Organisms that get their food by eating other organisms and raw materials  Consumers are HETEROTROPHIC organisms: they cannot make their own food, they do not do the process of photosynthesis

7 Cellular Process: Cellular Respiration  Plant and animal cells do cellular respiration to get energy from their food to fuel all other cellular processes and reactions  Cellular respiration: series of reactions that use oxygen to break down the energy from food (glucose and other macromolecules) to get energy for the cell to use in other reactions and processes  Plant and animal cells do cellular respiration to get energy from their food to fuel all other cellular processes and reactions  Cellular respiration: series of reactions that use oxygen to break down the energy from food (glucose and other macromolecules) to get energy for the cell to use in other reactions and processes

8 Cellular Process: Cellular Respiration InputsOutputs Consumer Glucose oxygen Carbon dioxide water Energy (ATP)

9 Cellular Process: Cellular Respiration  Glucose + oxygen --> carbon dioxide + water + ATP (energy for the cell) C 6 H 12 O O 2 --> 6 CO H 2 O + ATP (energy)

10 Photosynthesis & Cellular Respiration  They are interrelated!  Outputs (products) of photosynthesis are the inputs (reactants) of cellular respiration  They are interrelated!  Outputs (products) of photosynthesis are the inputs (reactants) of cellular respiration Inputs Green plant (autotroph) Outputs CO 2 H2OH2O Sunlight O2O2 Inputs Outputs Consumer H2OH2O Energy (ATP) Glucose (C 6 H 12 O 6 ) CO 2 Outputs of cellular respiration are the inputs of photosynthesis

11 Cellular Process: Cellular Respiration  Consumers undergo cellular respiration in every cell 24/7  Producers do the process of photosynthesis only during sunlight hours  Producers undergo cellular respiration at night--> the sugar the plant made during the day gets broken down at night to give the plant cell energy to perform other processes  Consumers undergo cellular respiration in every cell 24/7  Producers do the process of photosynthesis only during sunlight hours  Producers undergo cellular respiration at night--> the sugar the plant made during the day gets broken down at night to give the plant cell energy to perform other processes


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