Veronica's Science Blog

e coli

2008-11-03T10:35:00.000-08:00

1. internal compartmentalizaton
2.cell size
3.multicellularity
4.chromosomes
5.reproduction
6.flagella
7.metabolic diversity

bacillus/e. coli

coccus/ micrococcus luteus
spirillum volutans

they make antibiodics out of them.
conjugation- a process in which 2 organisms exchange genetic material.

parts of the cell

2008-10-03T10:28:00.000-07:00

name of cell parts and purpose
draw and lable cell.

1) nucleus- organelle that houses the DNA of eukaryotic cells
2) mitochondria- organelle that produces much of the ATP made by a eukaryotic cell
3)cell membrane- lipid bilayer with embedded protiens that enclose the cytoplasm; essential to the cell's cytoplasm; also called the plasma membrane
4) ribosomes- organelle on which protiens are made
5) golgi apperatis- organelle that packages and distributes molecuse produced by a erkaryotic cell
6) endoplasmic reticulum- cell membraines in the cytoplasm that transport substances made by the cell
7) lysosome-organelle in a eukaryotic cell that contains digestive enzymes
8) ceneral vacuole- a large membrane-bound space
9)chlorplast-organelles that use light energy to make carbohydrates from carbon dioxide and water.
10)cell wall-the structure that surounds the cell membrane and provides support for the cell

definetions

2008-09-12T11:03:00.000-07:00

1) biology- the study of life.
2) cell- highly orgonized, tiny sturctures with thin coverings called membranes.
3) reprodution- the process by which organisms make more of their own kind from one generation to the next.
4) metabolism- the sum of all the chemical reactions carried out in an organism.
5) homeostasis- the maintenance of the external enviorment.
6) gene- sets of inherited instructionsfor making proteins.
7) heredity- the passing of traits from parent to offspring.
8) mutation- a change in the DNA of a gene
9) evolution- change in the inherited traits of species over time
10) species- a group of genetically similar organisms that can produce fertile offspring
11) natural selection- the process in which organisms with favorable genes are more likely to survive and reproduce
12) ecology-the science that studies the interactions of living organisms with one another and with the nonliving part of their enviorment.
13) HIV- a virus that destorys the immune system, causing acquired immune deficiency syndrome, or AIDS
14) cancer- a growth disorder of cells that occurs when cells divide uncontrollably within the body
15) cystic fibrosis- a fatal disorder in which abnormally thick mucis builds up in many organs, including the lungs
16) observation- the act of noting or perceving objects or events using the senses
17) hypothesis-an explanaton that might be true -- a statement that can