Nucleus- The nucleus is the control center of the cell. This is where DNA is contained. This is like the town hall or the mayor’s office because it is the control center of a town. The nucleus uses DNA like a city uses blueprints to direct the production of protein. Nucleolus- The nucleolus is where ribosome is made and is rich in RNA content. It is located inside the nucleus. A mayor is like this because the mayor makes everything in the town happen. He also works from the town hall‚ or works
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BIO 113 Spring 2012 - Dr. MJ Bernot Study Guide – Exam 2 Chapter 7- IS AT THE BOTTOM. Bernot wrote it so hopefully it is useful • Describe the structure of DNA and discuss how it facilitates the ability of DNA to act as genetic material • Compare and contrast prokaryotic and eukaryotic chromosomes • Describe the process of DNA replication as a semi-conservative process. Compare and contrast the synthesis of the leading and lagging strands in DNA replication. • Explain
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During the long and arduous women’s rights campaign there were two main campaign parties‚ the Suffragists and the Suffragettes. These two parties and there overall aims were very well known throughout the British Empire and some of the tactics used were very brutal‚ but extremely effective. So to begin‚ the Suffragists were an extremely large group of women and some men who believed that the women of the British Empire should have the right to vote for who ran the country that they lived in. The
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between the structure and function of four specialised human cells. The human body is made up of trillions of different cells; all play a huge role in the running and function of the body. They are the foundation of all living things. Each different cell has its own exclusive job. Without cells the human body would simply fail. All cells contain organelles which are the structures of the cells itself‚ organelles have individual functions. This essay will investigate the structure and function
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worry. There are different levels of anxiety where you can have mild anxiety which can be unsettling to more severe symptoms that cause mental and physical health problems. Anxiety usually develops when someone is facing something that is out of their comfort zone and therefore can be many challenging situations. For example‚ if you were to take an exam‚ attend an interview or give a speech. It affects people in different ways because for some‚ these situations can be considered
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Lab 2: Animal and Plant Cells Purpose: To examine the differences between single cell and multi cell organisms in terms of Animal and Plant cells. Question: What are the differences between multi and single celled plant and animal organisms? Prediction: Spirogyra Cell: The parts of the spirogyra cell that will be visible under the microscope will be; cell wall‚ cell membrane‚ nucleus‚ chloroplasts‚ vacuole and cytoplasm. Banana Cell: The parts of the banana cell that will be visible
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The basic structure of all the penicillins consists of a thiazolidine ring fused with a beta-lactam ring‚ creating a fundamental nucleus (also known as 6-amino penicillanic acid) crucial for their antibacterial activity. A wide variety of semisynthetic penicillins are produced by altering the composition of the side chains attached to this nucleus.The molecular formula of penicillin is C16H18N2O4S and weight of 334.39 g/mol‚ each base with a variable side chain‚ “R” that differentiates the penicillins
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Robert Sullivan Period 3‚ Biology 11/18/2007 Plant Cell Paper Plant Cell The plant cell is seemingly less complicated then the animal cells. Having the necessary nucleus which holds the cells DNA and produces ribosomes that help in the synthesis of proteins. Surrounding the nucleus is the rough and smooth endoplasmic reticulum. The two help break down and store materials. Rough stores and transports synthesized proteins‚ while smooth stores and transports synthesized lipid‚ steroid hormones
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following possible points (structure) Distant object Close object Cornea suspensory ligament Ciliary Body - in tension - relaxed; - converges light/refracts/bends light; - tension relaxed; - contracts; - pulled thin; Lens - allowed to become fatter/more spherical; - the more convex/fatter the lens‚ the shorter focal length (or converse) Each itemised point in a box (-) worth one mark. Any 6 from 8 points. (b) (i) (ii) (c) (d) only blue-(sensitive) cones/cells stimulated; (mixture of)
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possibly cause anxiety symptoms. There could also be a problem with your brain chemistry. With Generalized Anxiety Disorder‚ some patients were found to have abnormal neurotransmitter levels in their brains which were causing the excessive anxiety. "When neurotransmitters are not working properly‚ the brain’s internal communication network breaks down‚ and the brain may react in an inappropriate way in some situations" (Peter Crosta). "Overactive thyroid‚ COPD‚ abnormalities of the heart‚ IBS‚ or
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