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(noahnj)
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Virus

VIRUSES!!!!!external image T4.gif The picture below
is the cycle of a virus killing a
bacteria cell.
external image 20070207_virus.jpgexternal image light-virus-1.jpg

----------------------------------------------The picture above is a type of virus.

A virus (from the Latin virus meaning toxin or poison) is a sub-microscopic infectious agent that is unable to grow or reproduce outside a host cell . Viruses infect all cellular life. The first known virus, tobacco mosaic virus, was discovered by Martinus Beijernick in 1899, And now more than 5,000 types of virus have been described.



dnastructure.jpg This is the DNA structure.
As you see, the tan is Adenine. The green is Thymine. The red is Guanine. The yellow is Cytosine, and the blue spiral part is the Sugar Phosphate Backbone.
MRSA.img_assist_custom.jpg
virus under microscope


Cells-


Cells are the structural and functional units of all living organisms. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, or have many cells—an estimated 100,000,000,000,000 cells! Each cell is an amazing world unto itself: it can take in nutrients, convert these nutrients into energy, carry out specialized functions, and reproduce as necessary. Even more amazing is that each cell stores its own set of instructions for carrying out each of these activities.

Bacteria-

Bacteria are microscopic organisms whose single cells have neither a membrane-bounded nucleus nor other membrane-bounded organelles like mitochondria and chloroplasts. Another group of microbes, the archaea, meet these criteria but are so different from the bacteria in other ways that they must have had a long, independent evolutionary history since close to the dawn of life. In fact, there is considerable evidence that you are more closely related to the archaea than they are to the bacteria.

HOW DOES A BACTERIA REPRODUCE?

bacteria growth
The video above is about a bacteria reproducing into millions.
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HOW DOES A VIRUS REPRODUCE?


this is a video above of a virus inserting DNA to kill a bacteria
cell and reproduce more viruses


Bacteriophage (Hybrid Medical Animation)

This is a video of a virus killing a bacteria cell ! ! !

For the video above, please load al the way before playing. thank you.


Bacteria

This is an informative video on bacteria.


The Process Of Mitosis

This is the process of mitosis.

Mitosis-a type of cell division that results in two daughter cells each having thesame number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. mitosis1.gif


Meiosis- a type of cell division that results in two daughter cells each with half the chromosome number of the parent cell, as in the production of gametes meiosis-big.gif


links:


http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/V/Viruses.htm

http://www.microbeworld.org/microbes/virus/

http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fr-indsp.htm



Here are some Bacteria Pictures!


external image bacteria_cell.jpgthe picture to the left is a external image bacteria%20hydrocarbons-jj-001.jpgTHIS IS BACTERIA
diagram of the parts of a bacteria cell.

external image bacteria5.jpg
bacteria . external image bacteria.jpg This is what bacteria looks like

Plant Cell-

external image plant_cell.jpg


Human Cell-


external image animal_cell.gif

  • The cell is the structural and functional unit of all living organisms. It is the smallest unit of an organism that is classified as living, and is often called "The building block of life."
  • Some organisms, such as most bacteria are unicellular (consists of a single cell). Other organisms, such as humans, are multicultural. (Humans have an estimate of 100 trillion cells; a typical cell mass is 1 nanogram).
  • The word cell comes from the Latin cellula, meaning a small room.

Photosynthesis

Nonvascular Plant - The three groups of plants( Liverworts, hornworts, and mosses) that lack specialized conducting tissues and true roots, stems, and leaves.

Vascular Plant - A plant that has specialized tissues that conduct materials from one part of the plant to another.

Gymnosperm - A woody, vascular seed plant whose seeds are not enclosed by an ovary or fruit.

Angiosperm - A flowering plant that produces seeds within fruit.

Rhizoid - A rootlike structure in nonvascular plants the holds the plants in place and helps the plant gets water and nutrients.

Rhizome - A horizontal, underground stem that produces new leaves, shoots, and roots.

Pollen - The tiny granules that contain the male gametophyte of seed plants.

Pollination - The transfer of pollen from the male reproductive structures to the female structures of seed plants.


Photosynthesis in plants and a few bacteria is responsible for feeding nearly all life on Earth. It does this by taking energy from the sun and converting it into a storable form, usually glucose, which plants use for their own life processes. Animals that consume plants also make use of this energy, as do those that consume those that consume plants, and so on to the top of the food chain.
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CELL BIOLOGY




NOW HERE IS A CHICKEN!


external image chicken.jpg this animal has an animal cell such as this ....


external image animalCell.jpg




Animal Organelles

Cytoplasm is basically the substance that fills the cell. It is eighty percent water and is mostly a jelly-like substance. Cytoplasm is the substance of life that serves as a molecuar soup in which the cell's organelles are suspended and held together by a fatty membrane. The cytoplasm is found inside the cell membrane.
The Golgi Complex is a net-like structure in the cytoplasm in animal cells.
The Vacuole is a membrane-bound cavity within a cell, often containing a watery liquid.
The Mitochondrion is an organelle in the cytoplasm of cells that functions in energy production.
The Lysosome is a cell organelle containing enzymes that digest particles and that disintegrate the cell after death.
The Centriole is a small, cylindrical cell organelle, seen near the nucleus in the cytoplasm of most Eukaryotic cells, that divides in perpendicular fashion during mitosis, the new pair of centrioles moving ahead of the spindle to opposite poles of the cell as the cell divides: identical in internal structure to a basel body.
The Nucleus is the main central command of the cell. It controls the movements and controls of the cell.
The Ribosomes are the main part of RNA and protein that are found in all cells.
The Endoplasmic Reticulum is an organelle found in all eukaryotic cells that is an inter connected network of tubules, vesicles, and cisternae.


ANOTHER CELL DIAGRAM
cellannot700.jpg

WHAT IS A CELL?__