B io Factsheet September 2000 Number 76 The Eukaryotic cell cycle and Mitosis This Factsheet covers the relevant AS syllabus content of the major examining boards. By studying this factsheet the candidate will gain a knowledge and understanding of: • the different phases of the eukaryotic cell cycle (a eukaryotic cell has membrane bound organelles) • the importances of mitosis • the process of mitosis The eukaryotic cell cycle Fig 2. Quantity of DNA in the cell during different
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Banks Now Turning Towards Loan Automation Technology As banks become more tech savvy‚ they are increasingly looking at loan automation technology. To find out the benefits and the challenges‚ executive editor N. Mohan speaks to several bankers. A report: anks and lending institutions need to be competitive in today’s lending environment in order to be in business. While they may endeavor to stay ahead with niche products‚ sustained marketing‚ effective customer care and efficient collection
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Homework Title: Photosynthesis and Respiration 1) Define these terms and arrange them from smallest to largest: Ch 5 WIO #3 • Thylakoid membrane Answer: Thylakoid membrane is a compartment in a plant cell that has light pigment that carry out the photosynthesis process. • Chloroplast Answer: Chloroplast is a type of organelle found in plants and algae that carry our photosynthesis. • Reaction center Answer: Reaction center is where chlorophyll a molecule and other
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EXERCISE NO. 1a MITOSIS OBJECTIVES The students should be able to: 1. identify the different steps involved in mitosis and meiosis; 2. describe the behavior of the chromosomes during each stage of cell division; 3. identify specific events in mitosis and meiosis that allow the inheritance of traits and generation of variation. MATERIALS A. Microscopic Examination Compound microscope cover slip Prepared slides of onion root tip (Allium cepa) 45% HAc Onion bulb
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Gas exchange is a biological process that is essential for the survival of an organism. The purpose of this process is to obtain oxygen from the environment (which is necessary for cellular respiration‚ and to dispose of CO2‚ a bi product of respiration. An efficient gas exchange system has 3 requirements. It must have a large surface area over which the gases can diffuse. A large surface area maximises the amount of area available for the gases to exchange. It must also be moist. Oxygen must first
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World’s Biggest Trees Are Dying Many of the world’s oldest trees‚ that are 100-300 years old‚ are dying. This is a trend happening worldwide. It’s happening in forests‚ savannahs‚ woods‚ mountains‚ cities‚ etc. The cause is human domination. We’ve been killing off these trees with pollution‚ deforestation‚ and other causes. This could really affect the world because other plants and animals depend on these trees for life‚ whether it be for food‚ shelter‚ or other needs. Large‚ old trees provide
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People can perform everyday tasks‚ such as shopping and banking as well as business transactions‚ without meeting other people face-to-face. What are the effects of this on an individual and the society as a whole? It is irrefutable that modern devices and tools of communications like Fax machines‚ telephone‚ interactive TV and computer have revolutionised each and every aspect of life. Thanks to telecommunications‚ daily tasks and business transactions can be performed without meeting other people
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Marine biology I would be an extremely happy man if I could do what I love for the rest of my life.With the many issues going on in our waters such as overfishing‚ pollution‚ and global warming. Marine biologists work hard day in and out to put an end to these terrible things that occur more often that one thinks. Did u know Water covers the 71 percent of the earth. As a kid must of my summers were spent at my family’s lake house and I loved every minute of it. I saw a lot of terrible things
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Vol 455 | 11 September 2008 | doi:10.1038/nature07271 ARTICLES Strigolactone inhibition of shoot branching ` Victoria Gomez-Roldan1‚ Soraya Fermas2‚ Philip B. Brewer3‚ Virginie Puech-Pages1‚ Elizabeth A. Dun3‚ Jean-Paul Pillot2‚ Fabien Letisse4‚ Radoslava Matusova5‚ Saida Danoun1‚ Jean-Charles Portais4‚ ´ Harro Bouwmeester5‚6‚ Guillaume Becard1‚ Christine A. Beveridge3‚7*‚ Catherine Rameau2* & Soizic F. Rochange1* A carotenoid-derived hormonal signal that inhibits shoot branching in plants
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Virtual Lab Enzyme Controlled Reactions Worksheet Which of the following does NOT apply to an enzyme Catalyst Inorganic Protein All of the above apply to an enzyme When an enzyme catalyzes a reaction Substrate(s) bind in the active site Products bind in the active site The shape of the enzyme remains unchanged The enzyme is consumed by the reaction Which of the following would interfere most with the ability of an enzyme to catalyze a reaction Reduced concentration of substrate available Reduced
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