Wednesday, May 20, 2009

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Salam..

Makcik Minah prepared preserved mango in the kitchen. She mixed the mango slices with sugar and salt. After a while, the mango slices became soft.

Answer for post 1

Cell sap in mango cells is hypotonic to the outside salt & sugar solution.
water will move out from the cell sap to surrounding by osmosis.
or
water will diffuse from the cell sap to surrounding.
cell loses water/ becomes plasmolysed.
thus the mango slices become soft.

Monday, May 18, 2009

Function of Mitochondria

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Salam..

When students are asked to state the function of mitochondrion, most of them will write
..to generate energy

the best way to describe mitochondrion's function is..
...to oxidise glucose to generate energy/ ATP

Gud luck!

Sunday, May 17, 2009

Osmosis & Food Preservation

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Salam..

Makcik Minah prepared preserved mango in the kitchen. She mixed the mango slices with sugar and salt. After a while, the mango slices became soft.

If you're given the situation like this, what is the best answer to describe the situation?

All answers will be posted after 3 days.. you should try to answer first, ok!
 

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