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Free research papers and essays on topics related to: chloroplasts

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  • A Parasite Is Defined As An Organism That Lives In Or On Another Organism, Called A Host 2 If The Parasite Has The Capacity T - 1,538 words
    A parasite is defined as an organism that lives in or on another organism, called a host (2). If the parasite has the capacity to cause disease in the host then the parasite is called a pathogen. Disease in the host is caused by the infection of the parasite. The interaction between the host and parasite is complex. Both the pathogen and the host strive for survival in some of the cases. The pathogen divides within or on the host in an attempt to keep its species alive while the hosts defense mechanisms simultaneously attempt to eliminate the pathogen. The extent of the battle for survival varies depending on the relationship. This paper discusses the disease state of Chlamydia; how the orga ...
    Related: capacity, host, organism, parasite, upper saddle
  • Active Transport - 1,302 words
    Active Transport Since the cell membrane is somewhat permeable to sodium ions, simple diffusion would result in a net movement of sodium ions into the cell, until the concentrations on the two sides of the membrane became equal. Sodium actually does diffuse into the cell rather freely, but as fast as it does so, the cell actively pumps it out again, against the concentration difference. The mechanism by which the cell pumps the sodium ions out is called active transport. Active transport requires the expenditure of energy for the work done by the cell in moving molecules against a concentration gradient. Active transport enables a cell to maintain a lower concentration of sodium inside the c ...
    Related: transport, early stages, carbon dioxide, carried away, chloroplasts
  • Bacteria Outline - 1,338 words
    Bacteria Outline Bacteria - Oldest, structurally simplest, most abundant forms of life - Only organism with prokaryotic cellular organization - The only members of the kingdom Monera (4800 different kinds) - Characteristics change depending on growth conditions - Maintenance of life depends on them - play vital role of productivity and as decomposers - Capable of fixing atmospheric N for use by other organisms - Used in production and fermentation of various food and as antibiotics and is being tested for insect control - Prokaryotes vs. Eukaryotes - Multi-cellularity - All bacteria fundamentally single celled - Sometimes cells adhere within a matrix to form filaments - Activities of bacteri ...
    Related: bacteria, outline, food poisoning, flowering plants, acid
  • Cell Parts - 328 words
    Cell Parts Nucleus Cell Wall Cell Membrane Ribosome Mitochondria Vacuoles Nucleolus Endoplasmic Reticulm Lysosomes 5. Have the "cell membrane people" cut the large piece of plastic wrap in half and place each piece on the table. 6. Have the "cytoplasm people" form 2 balls using the plain play-doh or clay. Lay 1 ball on each piece of plastic wrap and press each into a "pancake" about 6". 7. Instruct them to designate one pancake, "animal cell" and the other "plant cell". 8. Have members of each group find the supplies they need to represent their cell structures, cut, form, fold, paste, etc. until their structure is simulated. Then place the finished structures in a pile on the center of the ...
    Related: cell, cell structure, class period, coloring, nucleus
  • Chlorophyll Is The Green Pigment Inside Of Plants That Give Them Their Characteristic Green Color Chlorophyll Absorbs Violet - 393 words
    Chlorophyll is the green pigment inside of plants that give them their characteristic green color. Chlorophyll absorbs violet -blue and orange- red light from the sun needed for photosynthesis. Composed mostly of carbon and hydrogen it is a necessary compound used in the complex process that allows for much of the human life on earth to take place. Photosynthesis is the procedure by which green plants use the energy of light to convert carbon dioxide and water into the simple sugar known as glucose. In the process it creates breathable oxygen and depletes poisonous carbon dioxide. Without chlorophyll there would not be enough oxygen to sustain life on earth, nor would the be much of the swee ...
    Related: characteristic, violet, adenosine triphosphate, carbon dioxide, sweetness
  • Eukaryotic Organelles - 324 words
    Eukaryotic Organelles The mitochondria has an eggshape structure. The mitochondria consists of an inner and outer membrane. The outer membrane is what shapes the organelle to its egglike shape. The inner membrane which folds inward makes a set of "shelves" or cristae that allow the reactions of the mitochondria to take place. The more the mitochondria makes these reactions the more the inner membrane folds. This happens because the mitochondria now has more surface area connecting it to its surroundings. The processes that the mitochondria make are to break down the high energy organic molecules into smaller more useful packages. The endoplasmic reticulum is a network of tubes and channels t ...
    Related: eukaryotic, surface area, smooth, organic
  • I Am Your Usual Plant Cell There Are Trillions Of My Kind On All Plants, Grass, And Trees My Breed Ranges From Ten To A Hundr - 645 words
    I am your usual plant cell. There are trillions of my kind on all plants, grass, and trees. My breed ranges from ten to a hundred micrometers. I am approximately twenty micrometers since I dwell in grass. My organelles stretch out to one to ten micrometers. If you are asking what I really do and how I live, I am going to answer them in this paper. First off, any cells requires a structure, metabolism, energy, nutrients, waste, and communication. I am more complex than most other cells. Bacteria cell only have a cell wall, cell membrane, and a cytoplasm. Animal cells do not have cell wall, vacuole and cytoplasts. I am a very extraordinary cell indeed. Photosynthesis is the process which I dev ...
    Related: breed, cell, plant, trees, usual
  • Malaria Research Paper - 1,665 words
    Malaria - Research Paper Research Paper- Malaria Malaria is a disease caused by a parasite that lives both in mosquitoes and humans (9). Malaria lives in tropical and sub-tropical areas such as Southeast Asia, the Middle East, Haiti, India, The Dominican Republic, Africa, Papua New Guinea, and Central and South America (3). Malaria is one of the largest diseases around the world. About one out of every 20 people on earth, almost 300 million people, suffer from malaria yearly. Almost 2 million of those 300 million people die each year. Many new drugs are being tested to prevent malaria but no sure vaccine has been discovered (1). Malaria has terrorized this earth since the mid-Pleistocene age ...
    Related: malaria, research paper, ancient rome, world history, diagnosis
  • Mitochondria And Chloroplast Essay - 577 words
    Mitochondria and Chloroplast Essay name = Fnord Discordia email = publish = yes subject= Biology title = Mitochondria and Chloroplast Essay Biology Mitochondria and Chloroplast Essay I. Introduction Out of all the organelles there are two that have fascinated microbiologists for the past hundred years. The first is the mitochondria, nicknamed the "powerhouse of the cell." The second is the chloroplast in plant cells that have functions similar to those of the mitochondria. What do these organelles do? What are the similarities and differences of these organelles? This essay will help you to understand these two fascinating organelles. II. Mitochondria Mitochondria are small cytoplasmic orga ...
    Related: chloroplast, mitochondria, solar energy, san diego, publish
  • Peter Mitchell 1920 1992 : Chemiosmotic Hypothesis - 1,118 words
    Peter Mitchell (1920 - 1992) : Chemiosmotic Hypothesis Peter Mitchell's 1961 paper introducing the chemiosmotic hypothesis started a revolution which has echoed beyond bioenergetics to all biology, and shaped our understanding of the fundamental mechanisms of biological energy conservation, ion and metabolite transport, bacterial motility, organelle structure and biosynthesis, membrane structure and function, homeostasis, the evolution of the eukaryote cell, and indeed every aspect of life in which these processes play a role. The Nobel Prize for Chemistry in 1978, awarded to Peter Mitchell as the sole recipient, recognized his predominant contribution towards establishing the validity of th ...
    Related: hypothesis, mitchell, peter, nobel prize, physical chemistry
  • Photosynthesis - 984 words
    Photosynthesis Photosynthesis is the process by which chlorophyll - containing organisms - such as green plants, algae, and some bacteria - capture energy from light and convert it to chemical energy. For the process of photosynthesis to take place the organism must contain chloroplasts. Chlorophyll is responsible for the green color in plants and is also responsible for their ability to photosynthesize. Photosynthesis is usually carried out in the leaves of green plants, but it can also take place in other parts of the plant such as the stem. The balanced chemical equation for photosynthesis is: Sunlight + 6CO2 + H2O --yields-C6H12O6 + 6O2 The purpose of this lab is to answer the question, ...
    Related: photosynthesis, cellular respiration, carbon dioxide, plant, respiration
  • Plants Importance For Health - 1,862 words
    Plants Importance For Health Plants are the basis of the food pyramid for all living things, even other plants. They have always been very important to people, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter and a great many other purposes. Both humans and animals benefit from plants. We eat many different types of plants such as fruits and vegetables. We also use plants for our herbs. Plants are also used to manufacture many different products such as shampoos, rubber, paper, and camera film. In some countries, fermented sugar cane is used instead of gasoline. Animals use plants in many different ways also. They eat many fruits and other plants. Many anima ...
    Related: flowering plants, health, plant species, food pyramid, carbon dioxide
  • Proteins Made From Ribosomes Attached To The Rough Endoplasmic Reticulum Enter The Lumen Of The Er And Move To The Smooth End - 860 words
    Proteins made from ribosomes attached to the rough endoplasmic reticulum enter the lumen of the ER and move to the smooth endoplasmic reticulum. A small vacuole (vesicle) pinches off the smooth ER and carries the protein to the Golgi apparatus, where it is further processed. -------------------------------------------------- ----------- Mitochondria are bounded by a double membrane. The inner membrane is folded to form little shelves, called cristae, which project into the matrix, an inner space filled with a gel-like fluid. -------------------------------------------------- ------------ A vacuole is a large membrane-enclosed sac that usually functions as a storage area. Plant vacuoles contain ...
    Related: protein synthesis, rough, smooth, animal cells, toxic substances
  • Starch - 904 words
    Starch STARCH Starch is a white, granular, organic chemical that is produced by all green plants. Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents. The basic chemical formula of the starch molecule is (C6H10O5)n. The simplest form of starch is the linear polymer amylose; amylopectin is the branched form. Starch is manufactured in the green leaves of plants from excess glucose produced during photosynthesis and serves the plant as a reserve food supply. Starch is stored in chloroplasts in the form of granules and in such organs as the roots of the tapioca plant; the tuber of the potato; the stem pith of sago; and the seeds of corn, wheat, a ...
    Related: starch, food industry, contemporary society, food supply, preparation
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