4.2 study guide

Question 1

Nitrogen fixation

Answer 1

nitrogen from the atmosphere gets converted to Ammonia and Ammonium

Question 2

Nitrification

Answer 2

The Ammonia and Ammonium turn into Nitrate and Nitrite

Question 3

Denitrification

Answer 3

turns the nitrates into the atmosphere

Question 4

In puts and out puts of Photosynthesis

Answer 4

In puts: Nitrogen
Out puts: co2

Question 5

In puts and out puts of Cellular Respiration

Answer 5

In puts: Sunlight
Out puts: carbon dioxide

Question 6

What type of organisms perform the processes of photosynthesis and cellular respiration

Answer 6

plants and bacteria perform photosynthesis and cellular respiration while only animals perform the latter

Question 7

How humans affect the carbon and nitrogen cycles

Answer 7

Humans affect these cycles because we are constantly adding these things into the Earth

Question 8

How BTB (a pH indicator) works

Answer 8

When the water is blue it is basic when the water is yellow it is acidic

Question 9

how energy and how carbon flow through a food chain

Answer 9

energy and carbon follow a similar flow through the food chain but get lost in different ways

Question 10

Predict how BTB (a pH indicator) will change color in a test tube depending upon:
-The contents (plant, animal, both) and
-The condition (light or dark)

Answer 10

With sunlight and plants, the water will be basic. Without sunlight it will be acidic. When there are animals in the tube without plants then the water will be acidic either way.