Cells, Exchange and Transport Cell Structure State the resolution and magnification that can be achieved by a light microscope, a transmission electron microscope and a scanning electron microscope; | Light microscope | TEM | SEM | Resolution | 200nm | 0.1nm | 0.1nm | Magnification | X1500 | X250 000 | X100 000 | Explain the difference between magnification and resolution; Magnification: How much bigger the image is than
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Thomas Spann Biology Lab Plant Cell Definitions and Functions Nucleus: The cell nucleus is supposed to be the most important organelle. It carries the genetic information present in this organelle which inherits the physical traits from one generation to another. It has a dark stained nucleolus mainly responsible for protein formation. Apart from this, the nucleus coordinates all the cell functions and regulates the metabolism of plants. The passage of food and water and the influx of nutrients
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confused as I thought that the bigger one was called small vacuole. Not only did I learn that the central vacuole is responsible for regulating the waste in a plant cell but also that they are larger in plant cells than in animal cells. The correct answer was Central vacuole because this picture shows a plant cell and in the plant cell the vacuole is much larger. E: The reason why I choose chloroplast was because I remember that the chloroplast was small and round so I was confused between the
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REQUIREMENTS AND EVALUATION PROCEDURES ------------------------------------------------- A. Course and Performance Objectives Learning Outcome: Enable students to recognize the major unifying themes of biology, including evolutionary theory, cell theory, reproduction, and genetics as these relate to contemporary issues, such as biodiversity, human impact on the environment, and biotechnology. Course Goals: Upon completion of this class, the student will be able to: 1. Know the major
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Cell membrane - forms the outer covering of the cell, and is semi-permeable. Cytoplasm - is a gel-like matrix where all the other cell organelles are suspended inside the cell. Nucleus - contains the hereditary material DNA and directs the activities of the cell. Centrioles - organize the microtubules assembly during cell division. Endoplasmic Reticulum - are a network of membranes composed of rough and smooth endoplasmic reticulum. Golgi complex - is responsible for storing, packaging
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Anatomy and Physiology Cell Organelles There are 50 trillion (50 million million) cells in the human body; they carry out chemical reactions essential to life, for example Blood cells. Nucleus The nucleus is the largest structure in any human cell, it contains gasps or pores, which allow protein and nucleic acid, pass through. It is the central part of the cell and it’s usually a lot darker than the rest of the cell because it absorbs stain quickly and stores the entire DNA (Deoxyribonucleic
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Parts of a Cell There are two types of cells: Image 1 (Kaufman and Thompson) Prokaryotic Cell Image 2 (Kaufman and Thompson) Eukaryotic Cell A prokaryotic (pro- before; karyotic-nucleus or before the egg) cell does not have a true nucleus. A eukaryotic (eu- true; karyotic- nucleus) cell has a nucleus surrounded by a nuclear membrane. Let’s start with the CELL MEMBRANE Image 3 (Hese) Pretend the cell is a house
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engineering removes part of the DNA of one species, then combines it with the DNA of a totally different species [that would never breed together naturally]. This is done by manipulating the biochemistry of the DNA during cell division (splitting of one cell into two new cells) and DNA replication (producing two identical copies of the cell’s genetic material). …For example, … part of the DNA from Bt bacteria, [is] inserted into the DNA of corn, to produce a totally new species of corn [Bt-corn]
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Cells Assessment- Second Sitting 2015-6 Watch the short video at: https://www.youtube.com/watch?v=Rpj0emEGShQ (see footnote ), then answer the following question 1. Type your answers into the boxes 1) a) What substance are the “yellow, little knobby things” called “Keys” on the virus made of? ------------------------------------------------- These are made of proteins 1.2 b) The narrator says the “keys” fit
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Cell Essay This is my essay for converting a cell into a city. I started out with creating a cell wall. I made a Nordic wall of stone to protect the city. Next I did the cell membrane which I transformed into a draw bridge to fit the theme. For the cytoplasm I put grass because it makes up the shapes of the cell/city. The next big project was the chloroplast which I turned into solar panels and smokestacks because it takes in sunlight and releases CO2. On the inside I put greens and vines. The
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