For each of the following organellles, briefly describe thier structure and function.?

Question

cytoskeleton, mitochondria, ribsosomes, endoplasmic reticulum, golgi apparatus, lysoomes.

Answer 1

Cytoskeleton: Not only to keep the organelles roughly in place and nucleus centered (to keep structure of the cell) but also for vesicle transport thoughout the cell; it is like traintracks for movement in the cell

Mitochondrion: Site of cellular respiration. This is where chemical energy is made.

Ribosomes: Site of protein synthesis. Though some are free floating, protein synthesis usually occurs on ribosomes attached to the ER for packaging purposes.

Endoplasmic Reticulum (ER): This can be covered in ribosomes, as mentioned, making it "rough" ER or void of ribosomes - "smooth" ER. RER is involved in the protein synthesis. The newly made protein of the ribosomes is directly inserted in the ER where it is slightly modified in preparation for packaging for transport. The ER in RER also provides a specific environment, different from the cytoplasm of the cell, essential for protein folding.

SER is involved in lipid and steroid synthesis as well as in detoxification.

Golgi Apparatus - After leaving the RER, protein is then packaged for transport within or out of the cell. It makes vesicles to move contents around. This is the traffic director for the cell telling where the vesicles where to go.

Lysosome - These are special vesicles needed for cellular digestion. When a cell takes in "food" it needs to break it down. Lysosomes contain a higher pH as well as hydrolytic enzymes. These enzymes are what break down the "food" into smaller part that the food is made up of in order for the cell to use it.