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Nutrition in plants and animals (23 episodes) - edu4free

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Nutrition in plants and animals (23 episodes) - edu4free

Postby edu4free » Wed Sep 14, 2011 8:36 am

Nutrition in plants:

Episode 1: What's nutrition (introduction)
link: http://www.youtube.com/watch?v=JFwZv5uNWJA

Episode 2: Root hairs
link: http://www.youtube.com/watch?v=p0hJ8lGQoIE

Episode 3: Water absorption
link: http://www.youtube.com/watch?v=liVbS8Y2 ... B8&index=3

Episode 4: Essential mineral salts
link: http://www.youtube.com/watch?v=MRQenTw4 ... B5757B27B8

Episode 5: Water pathway through the root
link: http://www.youtube.com/watch?v=xrtHByPH ... 7B8&lf=BFa

Episode 6: Salt absorption
link: http://www.youtube.com/watch?v=NNA1mljl ... 7B8&lf=BFa

Episode 7: Oxygen's importance in absorption
link: http://www.youtube.com/watch?v=mNZC9SNn ... 7B8&lf=BFa

Episode 8: Photosynthesis
link: http://www.youtube.com/watch?v=99kT5sJw ... 7B8&lf=BFa

Episode 9: Products of photosynthesis
link: http://www.youtube.com/watch?v=BwkcMnr9 ... 7B8&lf=BFa

Episode 10: Chloroplasts
link: http://www.youtube.com/watch?v=FnJOEH9L ... 7B8&lf=BFa

Episode 11: Leaves adaptation
link: http://www.youtube.com/watch?v=oEW7ZysB ... 7B8&lf=BFa

Episode 12: Structure of the leaf blade
link: http://www.youtube.com/watch?v=QlH9UJMA ... 7B8&lf=BFa

Episode 13: Source of produced oxygen
link: http://www.youtube.com/watch?v=sDxPxrEL ... 7B8&lf=BFa

Episode 14: Light reactions part 1
link: http://www.youtube.com/watch?v=sOhr-k89 ... 7B8&lf=BFa

Episode 15: Light reactions part 2
link: http://www.youtube.com/watch?v=9IgEKrdo ... 8&index=15

Episode 16: Dark reactions part 1
link: http://www.youtube.com/watch?v=V1J3fHf7 ... 8&index=16

Episode 17: Dark reactions part 2
link: http://www.youtube.com/watch?v=4kZHNC4- ... B5757B27B8
Last edited by edu4free on Wed Sep 14, 2011 8:43 am, edited 1 time in total.
Posts: 2
Joined: Wed Sep 14, 2011 8:07 am

Nutrition in plants and animals (23 episodes) - edu4free

Postby edu4free » Wed Sep 14, 2011 8:42 am

Nutrition in animals:

Episode 18: Digestion and enzymes
link: http://www.youtube.com/watch?v=BFF0vNoa ... 7B8&lf=BFa

Episode 19: Buccal digestion
link: http://www.youtube.com/watch?v=SX5bztWj ... 7B8&lf=BFa

Episode 20: Gastric digestion
link: http://www.youtube.com/watch?v=gL4lOCu7 ... 7B8&lf=BFa

Episode 21: Intestinal digesiton
link: http://www.youtube.com/watch?v=MvIbIhDa ... 7B8&lf=BFa

Episode 22: Food absorption
link: http://www.youtube.com/watch?v=ciehfOxC ... 7B8&lf=BFa

Episode 23: Metabolism and large intestines
link: http://www.youtube.com/watch?v=sdw4wCxc ... 7B8&lf=BFa
Posts: 2
Joined: Wed Sep 14, 2011 8:07 am

Re: Nutrition in plants and animals (23 episodes) - edu4free

Postby sykierj » Wed Nov 16, 2011 7:18 am

All organism need energy to perform various processes of their lives. Energy is necessary for them whether they are working or at rest. We require energy even during sleep because a number of biological activities occur continuously in our body. For example, respiration and beating of heart keeps on going always without any break. All these processes of living beings need a continuous flow of energy. Food is the source of this energy. It is released by the breakdown of food taken by the organism. In the forthcoming text, we study various modes of intake of food and nutrition.

The very word nutrition means the process of taking in and utilizing the various nutrients by an organism. Nutrients are substance that provide energy to the organism. They also help in the biosynthesis of various consituents of the body. These are obtained by organisms from their surroundings. Food an important source of various nutrients required for growth, maintenance and repair of the body. It is also required for building the resistance in the body again various diseases and foregin pathogens. Thus, nutrition is a process by which organism obtains substances which are utilized for their growth, maintenance, reproduction and to counteract various diseases. Substances used for nutrition are called nutrients.
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