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Just in case you are wondering what MESS is about,
it is a collaborated educational blog.

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This blog is officially opened in 21 August 2009




-10 Recent Posts-
P5 Science Chapter 1 :The Solar System
P4 Science chapter 7: Heat
P4 Science Chapter 6: Energy & Light
P4 Science Chapter 5: Circulatory System
P4 Science: Air & the Respiratory System
P4 Chapter 3: The Water Cycle & Importance of Water
P4 Chapter 2: Water and Changes of States
P4 chapter 1: Matter & its 3 states
P3 Science Chapter 1: Diversity
P3 Science Chapter 7: Life Cycles Of Animals


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Tuesday, August 25, 2009
Primary 5 Science Chapter 2 :Cells @ 7:48 PM

Primary 5 Science Chapter 2 :Cells

Definition: Smallest unit of life
Can be: single-celled/ unicellular
Animal Cell: Cell membrane, cytoplasm, nucleus.
-> Cytoplasm: a jelly-like substance where many activities take place
-> Nucleus: Controls all the activities within cell & contains genetic info
-> Cell membrane: Partially permeable controls the substances in & out

Plant cell: Cell membrane, cytoplasm, nucleus, cell wall, chloroplasts
-> Chloroplasts: contains chlorophyll which trap sunlight & photosynthesize
-> Cell wall: made of cellulose and gives a regular shape

Cell Division: replace old/damaged cells, growth
* Yeast go through budding
* Amoeba go through binary fission



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