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Name: . Class :

Chapter 2Exercise 6

Learning Area: Nutrition and Food Production

Learning O!ecti"e: Anal#sing alance in nature.

$. %tud# the nitrogen c#cle elo&.

'a( Complete the tale ased on the nitrogen c#cle.

Process Name o) the process *acteria in"ol"ed

A

* Ammonification Decomposing bacteria

C

+

'( ,he plant can asor nitrogen compound in the )orm o) -. hat is -/

0000000000000000000000000000000000000000000000000000000000000000

'c( Process A can also happen &ithout the acteria. Name 1 process that can carr# out process A

&ithout the acteria.

'i( 000000000000000000000000000000000000000000000000000000000

'ii( 000000000000000000000000000000000000000000000000000000000

'iii( 000000000000000000000000000000000000000000000000000000000

$

Atmospheri

c N2

-

NitritesAmmonium

Compound

PlantsAnimals

A

C*

*

C

+

Score: ../16 x 100 = %

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2. Complete the diagram to sho& the importance o) nitrogen c#cle.

2

'a( aintain the

0000000000 o) the

soil.

'c(aintain the00000000000 o)

nitrogen gas in

the00000000000

'( 3educing

00000000000in

the

en"ironment.

'd( %uppl# 0000000 to

plants and animal touild 000000000

4mportanc

e o)

Nitrogen

C#cle