JJ Guo 12/4/12 AP Bio Chapter 9 and 10 Review Questions 1. Binary fission is the subdivision of a cell. The relative speed is faster. Chromatin is spaghetti like before mitosis Chromosomes (X-Shape) Chromatid (each individual part of the chromosome) Centromere (middle part of the chromosome) Centriole (involved in cellular division‚ the poles that pull the chromatids) Centrosome (microtubule organization center) 4. Diploid (2n) number Half the diploid is haploid (n) number Humans have
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Practical 1- An experiment to observe the features of an Onion Cells Method: Gather all equipment that will be used for the experiment and check that they are clean and undamaged. Using forceps‚ peel the membrane from the underside of a small piece of onion. Place the membrane flat on a clean‚ glass slide and add one drop of iodine solution. Use a pin to carefully lower the cover slip over the slide‚ ensure there are no air bubbles before the use of the slide. Set the microscope to its lowest
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Muscle Cell at rest: As the muscle cell is at rest it has a resting potential of -90mV. The K+ is all located inside the cell‚ the Na+ is located outside of the cell and the Ca2+ is located inside the sarcoplasmic reticulum. All leak channels and pumps are closed at this point. Muscle Cell stimulated by Acetylcholine: A motor neuron releases Acetylcholine which diffuses toward the muscle cell across the neuromuscular junction. As the Acetylcholine binds to a receptor on the muscle
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factor given the characteristics of labor-intensive industry. Cultural similarities between India and US includes that they were both British colony‚ hence sharing same language. Not only software programming adopted the English language‚ but also opened up the consulting business model for implementation and future opportunities to expand the market need. Furthermore‚ the lack of infrastructures in India could set back the investment. Such barrier was compensated by the government incentives such as tax
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“Scientists have recently proposed a reorganization of the phylogenetic system of classification to include the domain‚ a taxonomic category higher than the kingdom category.” A. The three-domain system allows for the conclusion that the previous five kingdoms were more connected than was believed. Out of the five previous kingdoms: Animalia‚ Plantae‚ Protista‚ Fungi‚ and Monera‚ four of the five kingdoms were placed in the same domain- Eukarya. The one remaining kingdom was separated into
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AP Chemistry Lab 2: Analysis of Alum Lab Objective: In this lab we will analyze alum by two techniques in order to verify its identity. The melting point and the mole ratio of hydrated water to anhydrous aluminum potassium sulfate will be determined. Lab Procedure: 1. Use a mortar and pestle to crush alum. 2. Pack the alum in capillary tube‚ and then fasten it to the thermometer. 3. Fasten the thermometer to the ring stand. 4. Immerse the bottom of the
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Biology Lab Scientific Paper Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small “packages” of genes in the body. They determine how a baby’s body forms during pregnancy and how the baby’s body functions as it grows in the womb and after birth. Usually‚ a baby is born with 46 chromosomes but babies with Down syndrome have an extra copy of one of these chromosomes‚ chromosome 21. A medical term for having an extra copy of a chromosome is trisomy. Down syndrome
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IB Biology Potato Lab Table 1: Trial Number | Concentration of Sucrose Solution (M) ±0.2 ml | Initial Mass of Potato Core Slice(g) ±0.1 | Final Mass of Potato Core Slices (g) ±0.1 | 1 | 0.0 | 7.7 | 9.3 | 2 | | 6.0 | 8.1 | 3 | | 6.2 | 7.4 | 4 | | 10.2 | 13.2 | 5 | | 8.7 | 10.3 | 6 | | 4.9 | 6.0 | 7 | | 9.2 | 10.4 | 1 | 0.2 | 5.8 | 6.0 | 2 | | 11.6 | 12.1 | 3 | | 2.5 | 3.1 | 1 | 0.4 | 14.4 | 13.9 | 2 | | 2.6 | 2.8 | 3 | | 8 | 6.5 | 1 | 0.6 | 7.3 | 5.3 | 2
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Alexander Templet Transpiration Rate in Tomato Solanum lycopersicum Biology 156 Summer 2008 Mr. Leith Adams‚ Instructor Lab Partners: Michael Adams Andrew Scalist Experiments Conducted: 23 June 2008 Abstract Plants draw water up through their roots and out through their leaves. This process is known as transpiration. The transpiration rate is a major determining factor in how quickly plants absorb water‚ and is thus critically important to understand for agriculture. In order
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The Tegan / Hrad Write-Up SECTION 1: Was outsourcing the A/P project the right move for Tegan given the other possible alternatives? Outsourcing has seemed to acquire a rise in popularity and usage in our modern times. Outsourcing involves entering into a contract in which an in-house company process‚ or processes‚ is ultimately handed over and dealt with from a third party’s perspective. I would have to say that there are three primary‚ helpful factors to outsourcing‚ especially when it comes
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