Tuesday, August 23, 2011

Respiration Lesson

After the Second Diagnostic Test done, we continue Bio lesson on Chapter 7- Respiration.
Still using mind maps to get hold of all the facts on only one sheet !!
Girls seem to be expert already doing mind maps....Well, practice makes perfect .
**May click on Pic to enlarge !
Doing mind map, needs planning too.
...such as...planning for space !!
Its up to you to make it colourful...After all...its your NOTES !!

And I am giving a bit of ideas...how to go about it ...
The mind map of Anearobic respiration in human muscles !


What about a mind map of anaerobic respiration in yeast ??

**Please take note :
You should be able to explain the followings (Essay ):

1. Explain anaerobic process in human muscles.
2. Explain anaerobic respiration in yeast.
3. Comparing aerobic and anaerobic respiration !

Tuesday, August 2, 2011

Energy Value

To determine the energy value in food samples:
i. ground nut
ii. cashew nut
Problem Statement: What are the energy values of different food samples?

Hypothesis: Cashew nut has a higher energy value than ground nut.//vice versa

Variables:
Manipulated: Types of nuts/type of food samples
Responding: Energy value
Fixed: mass of water

Apparatus & Material:
Ground nut, cashew nut, pin, plasticine, cotton wool, thermometer, boiling tube, bunsen burner, electronic balance, distilled water, retort stand, wind shield


Procedure:

List down the procedure. Make sure you include sentences of:

1. How to set up the apparatus. **At least 3 sentences.
2. How to manipulate variables
3. How to get a responding variable
4. How to get fixed variable.
5, Safety measures such as:
-use wind shield to avoid disturbances of wind which will affect the exp result.

**List only one should be sufficient.

This is called ' A simple calorimeter'

Setting up of apparatus

Result:

Produce a Table with manipulated variable and responding variable in a row and column respectively.
Do not forget the unit!!!



Do not forget the formula to calculate the energy value (J/g) of food.

*State the formula please ...
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