7/25/2019 L Obj 3.1a b c d.doc

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Learning Objective: 3.1 Understanding human excretion

Learning Outcomes:

Explain what excretion is.

Identify the excretory organs in humans.

State the excretory products of each excretory organ.

Explain the importance of excretion.

1. Completethe following statement to explain what excretion is.

Excretion is the process of removing ___________ products from our body.

. Label the excretory organs P, Qand Rin humans in the diagram below.

3. Completethe table to show the excretory products of the following excretory organs.

Excretory organs Excretory products

!idney and s"inExcess water# mineral salts and ____________

$ungsExcess water and __________________.

%. Tic !"the correct statements which explain the importance of excretion.

&a' Excretion helps to remove toxic substances from our body.

&b' (e will fall sic" or even die if the excretory products are not

removed from the body.

&c' Excretion helps to increase our body temperature.

&d' Excretion "eeps us healthy.

)

*

+

7/25/2019 L Obj 3.1a b c d.doc

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Learning Objective: 3.1 Understanding human excretion

#ns$er %c&eme

1. Completethe following statement to explain what excretion is.

Excretion is the process of removing wasteproducts from our body.

. Labelthe excretory organs *# + and ) in humans in the diagram below.

3. Complete the table to show the excretory products of the following excretoryorgans.

Excretory organs Excretory products

!idneys and s"in Excess water# mineral salts and urea

$ungs Excess water and carbon dioxide

%. Tic !"the correct statements which explain the importance of excretion.

&a' Excretion helps to remove toxic substances from our body.

&b' (e will fall sic" or even die if the excretory products are not

removed from the body.

&c' Excretion helps to increase our body temperature.

(d) Excretion "eeps us healthy.

$ung

!idneyS"in )

*

+

'