Nitrogen Cycle Review

Question 1

What bacteria converts Ammonia (NH3) into Nitrite (NO2)?

Answer 1

Nitrosomonas Bacteria

Question 2

What bacteria converts Nitrite (NO2) into Nitrate (NO3)?

Answer 2

Nitrobacter Bacteria

Question 3

What is the Biological Filter?

Answer 3

Encourages growth of bacteria that convert nitrogen compounds.

Question 4

What is the Mechanical (bead) Filter?

Answer 4

Removes solids and excess food.

Question 5

What is the Saltwater Aquarium Sump?

Answer 5

Neutralizes pressure to maintain pumping. All filtration is there as well. Except the decomp at the bottom of the tank.

Question 6

What is Nitrification?

Answer 6

It is responsible for the detoxification on ammonia. It is the process of converting ammonia into nitrite and nitrate.

Question 7

What is Denitrification?

Answer 7

The process of nitrite and nitrate being converted into nitrogen gas (N2).

Question 8

What is Aquaponics?

Answer 8

A process of agriculture that includes raising fish in tanks with soilless plants.

Question 9

What is Decomposition?

Answer 9

The process of rotting; decay

Question 10

What is Conversion?

Answer 10

An example of conversion is Ammonia getting converted into Nitrite by using bacteria.

Question 11

What is Assimilation?

Answer 11

An example of assimilation is when the plants absorb nitrate.

Question 12

What is the Nitrogen Cycle

Answer 12

The circulation of nitrogen throughout the biosphere.

Question 13

True or False?
Ammonia is not poisonous to fish

Answer 13

False

Question 14

True or False?
Nitrite converts into Nitrate

Answer 14

True

Question 15

True or False?
Ammonia is made from decomp

Answer 15

True

Question 16

True or False?
Nitrosomonas bacteria converts Nitrite to Nitrate

Answer 16

False

Question 17

Which filter removes solids and excess waste?

Answer 17

• Mechanical Filter
  or
• Biological Filter

Question 18

Which filter encourages bacteria growth that converts nitrogen compounds?

Answer 18

• Biological Filter
  or
• Mechanical Filter

Question 19

What are two ways Nitrate is removed from the tank?

Answer 19

1.) Plants absorb the Nitrate
2.) Changing the water in the tank

Question 20

What is the fresh aquarium “hang on back” filtration?

Answer 20

A filter where water is sucked through and past through the media and returned into the tank. They do a good job as mechanical filters

Question 21

What is amonias symbol?

Answer 21

NH3

Question 22

What is the order of nitrogen in a tank?

Answer 22

Ammonia- Nitrite- Nitrate

Question 23

Which form of nitrogen is the most toxic for fish?

Answer 23

Ammonia

Question 24

Which form of nitrogen is not as toxic, but still unhealthy for fish?

Answer 24

Nitrite

Question 25

Which form of nitrogen is healthy for fish?

Answer 25

Nitrate