(jaclynjj) Virus
A virus is nonliving structure that attacks cells and multiplies by injecting RNA or DNA telling the cell to make multiple copies of the virus. Virus Diagram
Bacteria Bacteria: Characterization and Classification
Bacteria is small single celled organisms that have a cell wall and do not have a well, defined nucleus. Bacteria Diagram
Archaea
Archaea are small single celled organisms that have a cell wall and do not have a well, defined nucleus. Archaea very similar to bacteria but have a different ribosomes structure and extremophiles. Extemophiles can live in extreme conditions such as high and low temperatures.
Archaea Diagram
Cells
Inside The Cell A cell is the smallest unit that performs all life processes; latin - little room; some cells have a nucleus but all cells have ribosomes and they make protein in all cells too. They all have a cell membrane, organelles, cytoplasm, and DNA. Scientists believe that cells are the basic unit of all living things.
Organelles
Organelles are small structures in the cytoplasm that perform a specific function; different cells have different organelles. Organelle Diagram Cell diagrams: Animal cell Animal Cell Diagram
The Cell Membrane:
Is a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment.
Cytoplasm: fluid inside the cell membrane.
Cytoskeleton: the cytoskeleton is a web of proteins in the cytoplasm that helps cells retain shape and helps some cells move.
The Nucleus (In certain cells):
The nucleus is a membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction.
Ribosomes: make proteins.
Endoplasmic Reticulum (ER): system of folded membranes in which proteins, lipids, and other materials are made, internal delivery system of the cell transporting substances.
Rough ER: covered in ribosomes making proteins.
Smooth ER: makes lipids and breaks down toxic damaging substances.
The Mitochondrion (In certain cells):
Is the cell organelle that is surrounded by two membranes and that is the site of cellular respiration.
The Golgi complex (body):
Is organelle that helps make and package materials to be transported out of the cell.
Vesicle:
Is a small bubble of liquid with in the cell
Lysosomes: vesicles found mainly in animal cells that are responsible for digestion inside a cell, contain digestive enzymes, destroy, worn-out or damaged organelles, get ride of waste materials, and protect the cell from foreign invaders.
Plant cell Plant Cell Diagram
The Cell Wall:
The cell wall is a rigid structure that surrounds the cell membrane and provides support to the cell.
Vacuoles: are vesicles, some vacuoles act like lysosomes and aid digestion, in plant cells the large central vacuole stores water and other liquids.
Chloroplasts: found in plants and algae, organelles where photosynthesis takes place.
Photosynthesis: process by which plants and algae use sunlight energy from the sun to make sugar and oxygen.
Mitosis: in eukaryotic cells a process of cell division that forms two new nuclei, each of them have the same number of chromosomes
Meiosis: it is a process in cell division when the number of chromosomes decrease to haf the original number by 2 divisions of the nucleus, which results in the production of sex cells
Scientists:
Robert Hooke- invented the first microscope used to observe cells and discovered the first cells in plants.
Anton van Leeuwenhoek- discovered the first animal cells as well as many other types of cells.
Mattias Scheliden- concluded that all plants were made of cells.
Theodore Schwann- concluded that all anomals were made of cells. The largest cell is an egg yolk. Most cells are small because they need a high surface to volume ratio.
Photosynthesis- is the process by which plants make their own food. Plants capture energy from sunlight during photosynthesis. That energy is used to make the sugar glucose from carbon dixide and water.
to watch a video of plant photosynthesis click here plant photosynthesisthen once at the page click where it says- click for animation: photosynthesis Nonvascular Plants- the three groups of plants that do not have specialized conducting tissues and true roots, stems, and leaves
Vascular- a plant that has specialized tissues that move materials from one part of the plant to a different part
Gymnosperm- a woody, vascular seed plant whose seeds are not enclosed by an ovary or fruit
(add Picture)
PANDA BEAR The reason I chose giant panda bears or pandas to be on my web-page is that they are soooooo cute. They are also endangered and I care a lot about endangered animals because some day they might become extinct and gone forever. Plus I want more people to realize how important it is that we take care of this earth, try to stop a lot of pollution, and take care the animals so extinction will never happen again. Then hopefully in the future an animal will never be endangered either. People need to know that panda bears don't get born as often as cats and dogs. People might think oh well its just one//__ panda that died or that was killed and another one will be born tomorrow. It is rare for a panda to get born and it takes a long time for it to grow and besides people as its predators there are other animals that hunt them. But as you can see by one of the pictures above they can climb to escape danger when some animals can't. As you probably can guess the mom keeps the baby safe from harm so pands don't always win and if a mother dies in battle the baby either gets killed and two die or the baby is left alone and might eventually die or hopefully another panda will take care of it or animal helpers will find it. So after all that you read I hope you will try to help the animals, panda bears and really important now is the polar bear! I hope you take matters in your own hands and do something for the animals anything at all will be helpful. But please try and help them.
Jaclyn
(jaclynjj)Virus
A virus is nonliving structure that attacks cells and multiplies by injecting RNA or DNA telling the cell to make multiple copies of the virus.
Virus Diagram
Bacteria
Bacteria: Characterization and Classification
Bacteria is small single celled organisms that have a cell wall and do not have a well, defined nucleus.
Bacteria Diagram
Archaea
Archaea are small single celled organisms that have a cell wall and do not have a well, defined nucleus. Archaea very similar to bacteria but have a different ribosomes structure and extremophiles. Extemophiles can live in extreme conditions such as high and low temperatures.
Archaea Diagram
Cells
Inside The Cell
A cell is the smallest unit that performs all life processes; latin - little room; some cells have a nucleus but all cells have ribosomes and they make protein in all cells too. They all have a cell membrane, organelles, cytoplasm, and DNA. Scientists believe that cells are the basic unit of all living things.
Organelles
Organelles are small structures in the cytoplasm that perform a specific function; different cells have different organelles.
Organelle Diagram
Cell diagrams:
Animal cell
Animal Cell Diagram
The Cell Membrane:
Is a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment.
Cytoplasm: fluid inside the cell membrane.
Cytoskeleton: the cytoskeleton is a web of proteins in the cytoplasm that helps cells retain shape and helps some cells move.
The Nucleus (In certain cells):
The nucleus is a membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction.
Ribosomes: make proteins.
Endoplasmic Reticulum (ER): system of folded membranes in which proteins, lipids, and other materials are made, internal delivery system of the cell transporting substances.
Rough ER: covered in ribosomes making proteins.
Smooth ER: makes lipids and breaks down toxic damaging substances.
The Mitochondrion (In certain cells):
Is the cell organelle that is surrounded by two membranes and that is the site of cellular respiration.
The Golgi complex (body):
Is organelle that helps make and package materials to be transported out of the cell.
Vesicle:
Is a small bubble of liquid with in the cell
Lysosomes: vesicles found mainly in animal cells that are responsible for digestion inside a cell, contain digestive enzymes, destroy, worn-out or damaged organelles, get ride of waste materials, and protect the cell from foreign invaders.
Plant cell
Plant Cell Diagram
The Cell Wall:
The cell wall is a rigid structure that surrounds the cell membrane and provides support to the cell.
Vacuoles: are vesicles, some vacuoles act like lysosomes and aid digestion, in plant cells the large central vacuole stores water and other liquids.
Chloroplasts: found in plants and algae, organelles where photosynthesis takes place.
Photosynthesis: process by which plants and algae use sunlight energy from the sun to make sugar and oxygen.
Mitosis: in eukaryotic cells a process of cell division that forms two new nuclei, each of them have the same number of chromosomes
Meiosis: it is a process in cell division when the number of chromosomes decrease to haf the original number by 2 divisions of the nucleus, which results in the production of sex cells
Scientists:
Robert Hooke- invented the first microscope used to observe cells and discovered the first cells in plants.
Anton van Leeuwenhoek- discovered the first animal cells as well as many other types of cells.
Mattias Scheliden- concluded that all plants were made of cells.
Theodore Schwann- concluded that all anomals were made of cells.
The largest cell is an egg yolk. Most cells are small because they need a high surface to volume ratio.
Photosynthesis- is the process by which plants make their own food. Plants capture energy from sunlight during photosynthesis. That energy is used to make the sugar glucose from carbon dixide and water.
to watch a video of plant photosynthesis click here plant photosynthesis then once at the page click where it says- click for animation: photosynthesis
Nonvascular Plants- the three groups of plants that do not have specialized conducting tissues and true roots, stems, and leaves
Vascular- a plant that has specialized tissues that move materials from one part of the plant to a different part
Gymnosperm- a woody, vascular seed plant whose seeds are not enclosed by an ovary or fruit
(add Picture)
PANDA BEAR
Archaea picture found at http://www.underwatertimes.com/news3/Archaea.jpg
Virus picture found at http://www.ucmp.berkeley.edu/alllife/virus.gif
Organelle picture found at http://www.digitalblasphemy.com/graphics/mthumbs/organelle_xthumb.jpg
Bacteria picture found at http://images.google.com/images?gbv=2&hl=en&q=bacteria first picture found at http://www.chinaodysseytours.com/tours/pictures/promotional-9-days-Sichuan-and-Tibet-Exploration-Tour/daybyday/panda-bear-d.jpg second picture found at http://www.desktoprating.com/wallpapers/animal-wallpapers-pictures/panda-bear-wallpaper.jpg third picture found at http://bradleysanimalplace.files.wordpress.com/2008/07/animal-picture-panda-bear-ucumari.jpg fourth picture found at http://www.southernbyways.com/wp- content/uploads/2006/05/Panda%20Bear.jpg fifth picture found at http://beconfused.com/media/2008/05/baby-panda.jpg sixth picture found at http://www.gotpetsonline.com/pictures-gallery/exotic-pictures-breeders-babies/panda-bear-pictures-breeders-babies/pictures/panda-bear-0001.jpg aniamal picture found at http://nobelprize.org/nobel_prizes/medicine/laureates/1999/med-cell-e.gif plant call picture found at http://www.daviddarling.info/images/plant_cell.jpg