Tuesday, January 17, 2012

Blog 11: Cell Poem

The nucleus is the town hall of a small city.
The postal packages and letters are being packaged and shipped through the Golgi apparatus. The cell membrane  marks the border of the city and the  vacuole is the city dump. The flagella would become the city's gravity and the ribosomes would be the farms.
Wordle: Untitled 
I believe that potential energy is important because it is stores energy that can be used at any time. Catalyst pathways are important to all living organisms, our digestive systems break down large food down into many micro vitamins. Energy is the most important concept because energy is everywhere around us, from our own bodies using energy from the food to help us move or breath to cars moving and electricity. Unlike potential energy, kinetic energy is energy in motion, for example atoms bouncing everywhere when water is in gas form, but when frozen, since they can't move, they cant create kinetic energy. Chemical energy is one of the lesser well known energies, in which two atoms join together to create energy. Free energy is the portion of a system's energy that can perform work when temperature is uniform throughout the system. Exergonic energy is when free energy is released while endergonic energy absorbs free energy. ATP is a form of energy in which for both photosynthesis and for cellular respiration to function and process. A catalyst occurs when a chemical agent changes the rate of the reactions without being consumed by the reaction. Enzymes are the catabolic protein that signals the organism's system to build proteins and reproducing DNA strands.

Blog 8: Bacteria vs Prion vs Virus

Bacteria : A member of a large group of unicellular microorganisms lacking organelles and an organized nucleus, including some that can cause disease.

Virus :
an ultramicroscopic, metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.
 
Prion :  a tiny proteinaceous particle, likened to viruses and viroids, but having no genetic component, thought to be an infectious agent in bovine spongiform encephalopathy

Bacteria similarities and differences of a prion :
-are unicellular
-adaptations in the moist environment
-uses a flagella to travel
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-bacterias :
have no nucleus while a viruses do
are bigger in size then prions
are composers of the environment
are unicellular

-prions :
has a nucleus
is multicellular
has cilia
require a moist environment

Similarties and differences between a virus and a bacteria :
-harmful to the host
-have DNA 
-have a nucleus
-is able to survive extreme weather/environment conditions
-smaller then eukaryotic micros
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bacteria has a cell wall
bacteria can reproduce on its own
bacteria are considered living micros
viruses has a protein coat
viruses need a host in order to reproduce
viruses are not accounted as a living micro
viruses tend to cause more major damages to it's host then bacteria

Thursday, January 12, 2012

Bacterial Transformation

Bacterial transformation occurs when the bacteria accepts foreign viral DNA and makes it into its own DNA.

Bacterial transduction on the other hand occurs when a virus injects its DNA into a bacterium and then the DNA gets extracted into the host's DNA and then the host uses the DNA and helps reproduce virus, leading to the bacterium bursting and then the new young viruses infect other surrounding bacterium. Viruses cannot survive without nearby hosts to reproduce with.