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Free research papers and essays on topics related to: ribosome

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  • Bio Outline - 2,483 words
    ... lecule of glucose requires (1) 18 ATP 7.3 kcal/mole x 18 = 131.4 kcal (2) 12 NADPH 53 kcal/mole x 12 = 636 kcal (a) Note 53 kcal/mole - ref: Campbell pg. 178 for NADH to O2 H2 O (3) Takes 767.4 kcal to make 1 molecule of glucose (686 kcal) (a) 686/767.4 = 89% efficiency. F. PHOTORESPIRATION (Use Study Sheet) 1. Rubisco prefers O2 to CO2 2. If rubisco binds O2 a. Process uses 6 additional ATP b. Regenerates RuBP c. Produces a 2-C compound (instead of 3-C) d. This compound is sent to peroxisome and mitochondrion (1) converted to Glycerate (3C) (2) transported back to chloroplast (3) Uses ATP to convert to 3-PGAL 3. NET LOSS OF ENERGY 4. Some plants waste as much as 50% of the energy they ...
    Related: outline, compare and contrast, citric acid cycle, krebs cycle, acid
  • Biology Molecule - 1,108 words
    ... covalent bond or a glycosiolic link -bond is angular and forms a spiral called an alpha helix -if it branches, amylopectin is formed -cellulose is a 1-4 linkage of beta glucose -this creates a straight strand and not a helix -these bonds are rigid and require special enzymes (cellulase) to break them -the position of the beta glucose molecules alternates Lipids: -humans rarely eat pure lipids -cell membranes are primarily lipid and lipids can easily enter cells, carrying a foods flavor with them -a diet should have less than 30% fat, 55-65% carbs, and 10-15% protein -lipids are important as a source of energy, insulation (adipose tissue), cushions for the internal organs, as a lubricant, ...
    Related: biology, molecule, heart disease, boiling point, blood
  • Breast Cancer - 1,598 words
    Breast Cancer Hereditary breast cancer is a disease caused by mutations on breast cancer suppresser genes (ACCV Pg.17). Mutations allow normal cells to divide abnormally (ACCV Pg.13). Resulting cells divide faster as they do not specialize and form useless lumps of cells called malignant tumours (ACCV Pg.13). Genetic Screening is the process where Deoxyribonucleic Acid (DNA) fragments are analyzed for a specific gene. The purpose is to identify individuals carrying disease causing genes so they can change their life style and also help invent a cure (ACCV Pg.20). This is done by amplifying DNA withdrawn from an individual, then specific gene mutations are targeted using the Electrophoresis p ...
    Related: breast, breast cancer, cancer, fact sheet, clinical practice
  • 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
  • Cells Of The Human Body - 2,250 words
    Cells Of The Human Body Cells are the basic living units of all plants and animals. The cell is the structural and functional unit of all living organisms. There are a wide variety of cell types, such as nerve, muscle, bone, fat, and blood cells. Each cell type has many characteristics, which are important to the normal function of the body as a whole. One of the important reasons for maintaining hemostasis is to keep the trillions of cells that form the body functioning normally. An averaged size cell is one-fifth the size of the smallest dot you can make on a sheet of paper with a sharp pencil. Although cells may have quite different structures and functions, all cells share some common ch ...
    Related: blood cells, cell division, human body, genetic information, deoxyribonucleic acid dna
  • Cells Of The Human Body - 2,204 words
    ... lum of skeletal muscle stores calcium ions that function in muscle contraction. GOLGI APPARATUS The Golgi apparatus is composed of flattened membranous sacs, containing cisternae, that are stacked on each other like dinner plates. The Golgi apparatus modifies, packages, and distributes proteins and lipids manufactured by the rough and smooth endoplasmic reticula. Proteins produced at the ribosomes of the rough endoplasmic reticulum are surrounded by a vesicle, or little sac, that forms from the membrane of the endoplasmic reticulum. The vesicle moves to the Golgi apparatus, fuses with the membrane of the Golgi apparatus, and releases the protein into the cisterna of the Golgi apparatus. ...
    Related: blood cells, cell division, human body, white blood cells, health care
  • Decubitis Ulcers - 1,134 words
    Decubitis Ulcers Decubitis Ulcers J. Caldwell P.N.S. 1. Decubitis Ulcers are also known as bed sores.(Marsh 1) They are mostly seen in Geriatrics patients. They occur in people who are put on bed rest, or long periods of wheelchair use. A traumatic decubitis ulcer is precipitated by continuous pressure on the skin and deep tissue with ischemic necrosis (Plewig 369). These particular ulcers are mainly found on bony parts of the body. They develop when the cells die because there is a tremendous amount of pressure put on the skin and it is trapped between a mattress or chair and tiny blood vessels collapse. The parts of the body that are affected by these ulcers are the back of the head, ear, ...
    Related: ulcers, skin deep, vital signs, protein synthesis, urine
  • God Existence Question - 1,831 words
    ... ible for God's existence--their own selves. Consider, for example, the human body. It is composed of 30+ different kinds of cells, totaling over `100 trillion' cells when all added together to make up the human adult.. These cells come in all different sizes and shapes, with different functions and life expectancies. For example, some cells (e.g., male spermatozoa) are so small that 20,000 would fit inside a capital "O" from a standard typewriter, each being only 1/20th mm long. Some cells, put end-to-end, would make only one inch if 6,000 were assembled together. Yet all the cells of the human body, if set end- to-end, would encircle the earth over 200 times. Even the largest cell of th ...
    Related: existence of god, god's existence, the bible, white blood cells, mathematical
  • Protein Synthesis - 1,592 words
    Protein Synthesis The process of Protein Synthesis involves many parts of the cell. Unlike other similar productions, this process is very complex and precise and therefore must be done in proper sequence to work effectively. The slightest error during this process could cause the action to experience difficulty or even fail. For example, in the production of starch, glucose molecules are combined to be stored and eventually utilized as usable chemical energy. The cell can break down the starch with little difficulty as if each molecule was identical, even though there is a wide variety of molecules. This is a different case in Protein Synthesis. In Protein Synthesis, there are twenty differ ...
    Related: protein, protein synthesis, synthesis, genetic code, blood cells
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