Thoughts on my marks :)

Overall my mark is not where I want it to be, but I know I'll be able to increase it to my expectations. Re-doing poor assignments and getting help on material I don't understand are two ways in aiding me to reach my goal. For me it comes down to effort and doing my assignments, quizzes and tests to the best of my abilities.

Organelles working together in protein synthesis

The first step in protein synthesis is transcription which happens in the nucleus. A strand of mRNA is made from a strand of DNA, where it travels to the cytoplasm. The second step is initiation, in which a tRNA strand matches up to a specific mRNA strand with the appropriate codon. Once this happens, an amino acid is created. Elongation occurs next, where the same process is repeated with the mRNA and tRNA. This happens in the ribosome, which can only fit two amino acids at a time. Eventually, a "stop" codon ends the process, and a peptide chain has formed. The chain leaves the ribosome, and the process is repeated again.

Fluid mosaic model

This is mine & Shanels attempt at the fluid mosaic model

1. Nucleolus - makes ribosomes for protein synthesis
2. Nucleous - contains genes & DNA
3. Ribosome - responsible for protein synthesis
4. Vesicle - moves substance in and out of cell
5. Rough Endoplasmic Reticulum - involved in protein synthesis; ribosomes are attached to its surface
6. Golgi Body - responsible for recieving and packing
7. Cell Membrane - provides boundary & controls what leaves & enters the cell
8. Smooth Endoplasmic Reticulum - ribosome free part of ER that is responsible for lipid synthesis
9. Mitochondria - powerhouse of cell
10. Vacuole - used for storage
11. Cytoplasm - all of the substance in the cell outside of the nucleus
12. Lysosome - performs cellular digestion
13. Centrioles - always in pairs and involved in cell division

DNA & RNA

Endocytosis/Digestion of Incoming Nutrients

Endocytosis is the process where a cell absorbs molecules by engulfing them. The lysosome is important in this because it contains acid hydrolase enzymes that break down waste materials and cellular debris. Also, the food vacuole is essential as well because it is a highly specialized organelle formed from endocytosis, in which phagocytized food is digested.