Tuesday, February 7, 2012

Extra Credit Blog


In your blog please give me some feedback on last semester

What topics really confused you?
The most confusing topics for me was the plant respiration lab and the metabolism with all the confusing element compounds.

What topics do you feel very clear on?
The topics that I feel very clear about so far is the ecology, plant, and evolution chapters so far.

What lab/ activity was your favorite? Why?
My favorite lab activity was the plant dissection lab so far because I had already know the plant parts and I know what parts to take out and recognize the plant parts.

What lab/activity was your least favorite? Why?
The least favorite lab would be the respiration lab because it was confusing and I didnt know what I was doing so our group had done the lab wrong.

If you could change something about the class to make it better, for instance the type of homework (not the amount) what would it be and why?
l would prefer that we have no simulations and blogs and more writing and worksheets to increase the understand of the chapter.

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.

Monday, November 14, 2011

Objective: Create a chart comparing and contrasting the similarities and differences between photosynthesis and cell respiration.

Similarities between Photosynthesis and Cellular Respiration
  • electron transport chain is used for transferring electrons and other stuff between reactions
  • ATP is used in both systems
  • chemiosmosis allows ATP synthesis to make more ATP molecules
Differences  between Photosynthesis and Cellular Respiration
  • Photosynthesis uses Carbon Dioxide and Hydrogen to create Glucose and Oxygen
  • Cellular Respiration uses Oxygen and Glycogen to create Carbon Dioxide and Hydrogen
  • NADPH is needed in photosynthesis
  • Formula for photosynthesis = C6O2------>C6H12O6+6O2
  • Formula for Cellular Respiration = 6O2 +C6H12O6 ------> 6CO2 +6H2O

Objective: Explain the difference between C3,C4, and CAM plants in terms of their photosynthesis.

C3 Plants:
  • normal plants the doesn't have to face harsh environment
  • only opens their stomata during the day time
  • regulates the Light reaction and Calvin Cycle normally
C4 Plants:
  •  has 2 different cells that C3 plants and CAM doesn't have: Mesophyll Cells and bundle sheath  cells
  • the plant uses C4 carbon fixation in which carbon is attached to the phophoenolpyruvic  in the Mesophyll Cell ceating a four carbon compound
  • then in the bundle sheath the four carbons is then decomposed into carbon and pyruvate and to be used for the C3 pathway
  • the carbon in the C3 pathway is turned into glucose and the pyruvate is sent back into the Mesophyll cell
  • afterward the pyruvate is turned back into a phophoenolpyruvate  with the help of the ATP.
CAM Plants:
  • They only have one cell
  • their stomata is only open during the night, closed during the day (opposite of the C3 plants)
  • Carbon inhaled by the plant and oxygen is exhailed
  • they usually have the characteristics of small and has small or thin leaves to store water, these plants are most likely found in the destert and any other harsh biomes.