logging in or signing up Chapter 3: Cell Functions pcosper Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 597 Category: Education License: All Rights Reserved Like it (2) Dislike it (0) Added: October 13, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Chapter 3: Section 3 : Chapter 3: Section 3 Energy for Life Moving Cell Materials : Moving Cell Materials A. Cells have a selectively permeable membrane that lets things in and out of the cell. Passive Transport : Passive Transport The movement of substances through a cell membrane without the use of energy. Examples: Diffusion – movement of molecules from where there is more to where there is less. Osmosis – movement of water from where there is more to where there is less Slide 4: The solutes will move to the left while water will move to the right; both are trying to reach equilibrium. Active Transport : Active Transport Requires energy to move a substance through a cell membrane. Examples: Endocytosis brings food in. Exocytosis takes wastes out. Cells and Energy : Cells and Energy A. Metabolism – the total of all chemical reactions in an organism. Cells use chemical reactions to release energy from food. Most reactions need enzymes to speed things up. Slide 8: B. Photosynthesis- the process that plants and other organisms use to convert light energy into chemical energy or sugars to be used as food. During photosynthesis, producers use light energy to make sugars, which can be used as food. Slide 10: Producers – organisms that make their own food. Examples: Plants Consumers – organisms that can’t make their own food. Examples: Animals Slide 11: 2. Chlorophyll and other pigments are used in photosynthesis to capture light energy which is used to produce sugar and oxygen. Carbon dioxide + water + sunlight = oxygen and sugar (energy) Slide 12: C. Cell Respiration – the process in which chemical reactions break down food molecules into simpler substances and release stored energy Slide 13: 1. Breaking down of carbohydrates (sugars from food) begin in the cytoplasm and finish in the mitochondria. 2. In the mitochondria the sugars are broken down again, releasing much more energy and used to make the body run 3. This process uses oxygen and produces carbon dioxide and water as wastes. Slide 15: D. Photosynthesis and cell respiration – almost the opposite of each other! Photosynthesis produces sugars and oxygen, which are used in cell respiration. Cell Respiration produces carbon dioxide and water, which is used in photosynthesis. Bonus Information : Bonus Information Bonus: Photosynthesis Carbon dioxide + water + sunlight = oxygen and sugar (energy) Cell Respiration: Oxygen + Glucose = Carbon Dioxide + Water + Energy (ATP) Plants Vs. Animals : Plants: 1. Plant can make their own food, otherwise known as producers. 2. They are also known as autotrophs since they can make their own food and not depend on others. 3. They can make their own food through a process called photosynthesis. Plants Vs. Animals Plants Vs. Animals : Plants Vs. Animals 4. If an organism has chloroplasts it is known that the organism can make its own food. 5. Plant cells are unique because they have cell walls, chloroplasts, and a large central vacuole. Plants Vs. Animals : 6. Plants cannot move, however they can respond to light and gravity. 7. Plants can reproduce sexually and asexually. Their flowers have both male and female parts. Plants Vs. Animals Plants Vs. Animals : Animals: 1. Animals cannot make their own food. 2. Consumers are also known as heterotrophs who cannot make their own food and must eat other living things for energy. Plants Vs. Animals Plants Vs. Animals : 3. Animal cells do not have cell walls or chloroplasts. 4. They break down food molecules into energy through a process called cell respiration. Plants Vs. Animals Slide 24: 5. Animals reproduce sexually. There must be a combining of sex cells. 6. Animals can move, especially to locate food. This is called locomotion which refers to movement, whether it is walking, flying, swimming, or gliding. Slide 25: 7. Lastly, animals release carbon dioxide while plants release oxygen. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Chapter 3: Cell Functions pcosper Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 597 Category: Education License: All Rights Reserved Like it (2) Dislike it (0) Added: October 13, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Chapter 3: Section 3 : Chapter 3: Section 3 Energy for Life Moving Cell Materials : Moving Cell Materials A. Cells have a selectively permeable membrane that lets things in and out of the cell. Passive Transport : Passive Transport The movement of substances through a cell membrane without the use of energy. Examples: Diffusion – movement of molecules from where there is more to where there is less. Osmosis – movement of water from where there is more to where there is less Slide 4: The solutes will move to the left while water will move to the right; both are trying to reach equilibrium. Active Transport : Active Transport Requires energy to move a substance through a cell membrane. Examples: Endocytosis brings food in. Exocytosis takes wastes out. Cells and Energy : Cells and Energy A. Metabolism – the total of all chemical reactions in an organism. Cells use chemical reactions to release energy from food. Most reactions need enzymes to speed things up. Slide 8: B. Photosynthesis- the process that plants and other organisms use to convert light energy into chemical energy or sugars to be used as food. During photosynthesis, producers use light energy to make sugars, which can be used as food. Slide 10: Producers – organisms that make their own food. Examples: Plants Consumers – organisms that can’t make their own food. Examples: Animals Slide 11: 2. Chlorophyll and other pigments are used in photosynthesis to capture light energy which is used to produce sugar and oxygen. Carbon dioxide + water + sunlight = oxygen and sugar (energy) Slide 12: C. Cell Respiration – the process in which chemical reactions break down food molecules into simpler substances and release stored energy Slide 13: 1. Breaking down of carbohydrates (sugars from food) begin in the cytoplasm and finish in the mitochondria. 2. In the mitochondria the sugars are broken down again, releasing much more energy and used to make the body run 3. This process uses oxygen and produces carbon dioxide and water as wastes. Slide 15: D. Photosynthesis and cell respiration – almost the opposite of each other! Photosynthesis produces sugars and oxygen, which are used in cell respiration. Cell Respiration produces carbon dioxide and water, which is used in photosynthesis. Bonus Information : Bonus Information Bonus: Photosynthesis Carbon dioxide + water + sunlight = oxygen and sugar (energy) Cell Respiration: Oxygen + Glucose = Carbon Dioxide + Water + Energy (ATP) Plants Vs. Animals : Plants: 1. Plant can make their own food, otherwise known as producers. 2. They are also known as autotrophs since they can make their own food and not depend on others. 3. They can make their own food through a process called photosynthesis. Plants Vs. Animals Plants Vs. Animals : Plants Vs. Animals 4. If an organism has chloroplasts it is known that the organism can make its own food. 5. Plant cells are unique because they have cell walls, chloroplasts, and a large central vacuole. Plants Vs. Animals : 6. Plants cannot move, however they can respond to light and gravity. 7. Plants can reproduce sexually and asexually. Their flowers have both male and female parts. Plants Vs. Animals Plants Vs. Animals : Animals: 1. Animals cannot make their own food. 2. Consumers are also known as heterotrophs who cannot make their own food and must eat other living things for energy. Plants Vs. Animals Plants Vs. Animals : 3. Animal cells do not have cell walls or chloroplasts. 4. They break down food molecules into energy through a process called cell respiration. Plants Vs. Animals Slide 24: 5. Animals reproduce sexually. There must be a combining of sex cells. 6. Animals can move, especially to locate food. This is called locomotion which refers to movement, whether it is walking, flying, swimming, or gliding. Slide 25: 7. Lastly, animals release carbon dioxide while plants release oxygen.