Cell Structure

Activity : Cell Structure

Individual Work

1. Based on Image given below, fill in the table with the names and functions of the organelles that you are very sure of. Use green to fill in these fields. 

2. Fill in the table with the names and/or function of the organelles that you might be sure of. Use orange to fill in these fields. 

Think-Pair-Share

3. With a friend, discuss with your friend(s) [if you are working in groups of 3] and modify your existing answers. Once again, if both of you are sure,use green in these fields. If you are both somewhat sure, use orange. If you are confused and not sure at all, use red to fill in these fields. 

4. Carry out research and fill up the last column with your research. 

5. Upload the file to your online journal for reference. 

Component	Organelle Name	Description of Organelle	Function	Electron micrograph
A	Nuclear membrane	A membrane that separates the cytoplasm from the nucleolus.	To keep the chromosomes and chromatin within the membrane.	*
B	Nuclear pore	Hole-like structure	Let information of DNA go out to other parts of cell	*
C	Nucleolus	a region in the nucleus where rRNA genes exist and are transcribed	produces ribosomal subunits Contains DNA, which controls the cell’s activities by directing protein synthesis.	*
D	Lysosome	Contain digestive enzymes	Digest excess or worn-out organelles, food particles and engulf bacteria or viruses. Also help repair worn-out plasma membrane. Cell breaks down if lysosome explodes due to autolysis.	*
E	Rough Endoplasmic Reticulum	Isolate and transport proteins synthesised by attached ribosomes.	Proteins might undergo further folding within here	*
F	Smooth Endoplasmic Reticulum	An interconnected network of tubes and vesicles and lacks ribosomes	Involved in the synthesis of proteins, fats, and steroids	*
G	Cytoplasm	Gel-like mixture surrounded by cell membrane	Contains organelles
H	Golgi Apparatus	Works closely with Endoplasmic Reticulum	Primary function is to process and package complex molecules such as proteins and fats that are made by the cell. Brings these products to the surface of the cell where they can be secreted. Other secretions include hormones, antibodies and enzymes.	*
I	Cell Membrane	it is thin, permeable and mostly flexible and stretchable It does not have a fixed shape or size, of which is constantly changing	Partially permeable, allows some substances to move in and out. Compartmentalize. Prevent autolysis.	*
J	Vacuole	Membrane-bound sacs for storage, digestion and waste removal	Vacuoles might store food or any variety of nutrients a cell might need to survive. They can even store waste products so the rest of the cell is protected from contamination. Eventually, those waste products would be secreted from the cell	*
K	Mitochondria	Second largest organelle with unique genetic structure	Energy-producing chemical reactions take place here	*
L	Ribosome	Each cell contains thousands of it, found on endoplasmic reticulum, & floating throughout the cell	Involved in the synthesis of proteins	*