Dosi Questions

Nitrogen Cycle
https://www.classzone.com/books/ml_science_share/vis_sim/em05_pg20_nitrogen/em05_pg20_nitrogen.swf

PowerPoint: Will help you answer the questions:
https://docs.google.com/file/d/0B2mk7v8cXovLTmJMSlJ4OGcwa1E/edit?usp=sharing


Biology Plus Questions:
https://docs.google.com/file/d/0B2mk7v8cXovLVnJ0VjVTWXBkNkk/edit?usp=sharing


Homework: Answer questions on worksheet and bring your book to class on tuesday. Use page 48 out of your biology book and the above powerpoint to help you answer the questions.

Mr. P/Ferrell

THE CARBON CYCLE:

1.     What is the process that plants convert (change) carbon dioxide into energy rich carbon compounds (Glucose and Oxygen)?

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2.     What processes in the transparency release (go out) carbon dioxide into the atmosphere (air)? (Carbon Dioxide released in the air) What is the name of this process?

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3.     How do plants and animals help to maintain a balance of carbon dioxide in the atmosphere?

In photosynthesis, plants REMOVE (take in) ___________________ from the

atmosphere. In respiration plants and animals return (go out) _______________________

to the atmosphere.

THE NITROGEN CYCLE:

4.     ________ % of the air consists of nitrogen gas.

5.     Bacteria in root nodules changes nitrogen gas into what form?

N₂ à NH₃ What is NH3 ________________

6.     What happens to change nitrogen gas to ammonia?

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7.     How do plants obtain (get) the nitrogen they need?

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8.     How do herbivores (plant eaters) obtain (get) the nitrogen they need?

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9.     How do other animals obtain (get) the nitrogen they need?

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