EXPLORING THE EGG CELL By: Christina Vu SNC2D3 Mr.Ram FUNCTION OF THE EGG CELL: The egg cell is the female gamete used for sexual reproduction. The egg cell is responsible for providing half of the genetic material required for reproduction. When the egg cell joins with the sperm cell.... The egg cell is large and bulky structure which allows the sperm cell to get in easily. WHAT ORGANELLES DOES AN EGG CELL HAVE AND THEIR FUNCTION? Mitochondria: Produces energy for the cell by a process called
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High School Students’ Conceptions about Energy in Chemical Reactions (focusing only in exothermic and endothermic reactions). Aim The aim of this study is to investigate students’ understanding of the energy concept in chemical reactions particularly in endothermic-exothermic reactions. Both qualitative and quantitative methodology was used for this investigation. A twenty-item multiple choice test was developed about the topic to measure the students’ understandings. This concept test was
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Chapter 6: A Tour of the Cell Cell fractionation – cells are taken apart using a centrifuge (differential centrifugation) and separated into their sub cellular structures Point of Difference | Eukaryotic | Prokaryotic | Shape/Size | Larger | Smaller | Complexity | Membrane bounded organelles | No membrane bound organelles | Nucleus | Bounded membrane with DNA | DNA in a region (nucleoid) | Kingdom | Plants‚ animals‚ fungi‚ protists | Bacteria and archaea | Reproduction | Sexual reproduction
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2013 “Reaction Classes and Pericyclic Reactions” ● 4 Lectures ● Recommended Texts: (i) J. March “Advanced Organic Chemistry”‚ p 839‚ `---Edn.‚ Oxford (W); Warren (2) Ch 34‚ 35. Syllabus 1) General principles (a) Reaction classes (i) Heterolytic (ii) Homolytic (iii) Pericyclic (b) Pericyclic Reaction Types 2) Electrocyclic Reactions (a) Definition and examples (b) Stereochemical aspects and the Woodward and Hoffmann rules 3) Cycloaddition Reactions (a) Definition
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An introduction paragraph is the way a person opens up a business statement‚ a development concept‚ a project letter or any other written idea that needs to convey a message to other people. The goal of the paragraph is to outline the basic tenants of the upcoming document. It needs to be done concisely and in plain words that will help someone understand as well as get them to read the rest of the report. Difficulty: Moderate Instructions Things You’ll Need: * Computer or word processor
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People attend college or university for many different reasons (for example‚ new experiences‚ career preparation‚ increased knowledge). Why do you think people attend college or university? People attend college or university for a number of reasons. Some want to increase their knowledge‚ some want to expand their relationships… In my opinion‚ people mostly go to college or university due to the following reasons. First‚ college offers people new experiences. College life is very different
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W? Study Money and Banking? CHAPTER 1 WHY STUDY MONEY AND BANKING? What is Money and Banking? It is a means and method of allocating and reallocating resources The means is what we call Money The method is called Banking or the Financial System The Financial system Comprises of • Financial Markets • Financial intermediaries Why Study Financial Markets? • Financial Markets channel funds from savers(lenders) to investors(borrowers). • A method of acquiring personal wealth
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When studying the human body‚ there are seven organizational approaches. Each approach studies the body in a different yet unique way and is used in the health care field. The approaches consist of; body planes and directions‚ body cavities‚ quadrants and regions‚ anatomy and physiology‚ microscopic and macroscopic‚ body systems and medical specialties. There are three body planes which use different directions: coronal‚ sagittal‚ and transverse planes. Coronal plane slices the body from head
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The Displacement Reactions Purpose: to see how displacement reaction works with different chemicals and what chemical has more reactivity series then other Hypothesis: Iron + Copper Sulfate: Iron will displace copper because it is more reactive and it is going to end up as Iron Sulphide + Copper Copper + Silver Nitrate: Copper will displace Silver because it is more reactive and it is going to end up as Copper Nitride + Magnesium + Copper oxide: Magnesium will displace Copper because it
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renewable energy sources‚ fuel cell technology has received great attention as an alternative to the conventional way of getting energy due to its high efficiency‚ clean operation and cost efficient supply of power demanded by the consumers. Proton exchange membrane (PEM) fuel cells technology plays a leading role for many applications when comparing with other competitive types of fuel cells. The world is in high demand for clean alternative fuel source and PEM fuel cells could be that change with a
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