"Endoplasmic reticulum" Essays and Research Papers

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    DNA Turns Into Polyptide

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    The process by which DNA turns into polypeptides is a complicated and long. Two main steps in changing the DNA into a polypeptide are transcription and translation‚ with transcription coming first. The process first starts in the nucleus of the cell. The DNA begins to unfold with the help of a helicase. During the transcription phase of the change‚ strands of DNA begin to unwind and the complementary mRNA is made or transcribed. The way they do this is by using the common pairs of DNA triplet bases

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    biology lab

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    Assessment Experiment 1 Post-Lab Questions 1. Label each of the arrows in the following slide image: A. Chromosomes B. Nucleus C. Cytoplasm D. Cell wall 2. What is the difference between the rough and smooth endoplasmic reticulum? 3. Would an animal cell be able to survive without mitochondria? Why or why not? 4. What could you determine about a specimen if you observed a slide image showing the specimen with a cell wall‚ but no nucleus or mitochondria

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    Biology Analogy

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    Nucleus Nuclear Envelope Chromosomes Endoplasmic Reticulum Golgi Lysosomes Vacuoles Mitochondria Cell Membranes Cell Wall White House Airplanes Humans Subways UPS/Mail Restaurants Landfills Power Plants Borders Government U.S v Cell The Nucleus’s function is to control the cell.

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    Cell and Skill

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    Biology: Concepts and Connections‚ 6e (Campbell) Test Bank (1) Part (1) Chapter 1 Introduction: The Scientific Study of Life 1) Which of the following statements about the leopard is false? A) Leopards are the largest cat in the genus Panthera. B) Leopards‚ like lions‚ can roar. C) Leopards prefer to eat their kill in trees. D) Leopards are well-adapted for nocturnal hunting. E) Leopards are normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual

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    Plant Cell

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    PLANT CELL Introduction Plant cell is the basic unit of structure and function in nearly all plants. The range of specialization and the character of association of plant cells are very wide. In the simplest plant forms a single cell constitutes a whole organism and carries out all the life functions. In just slightly more complex forms‚ cells are associated structurally‚ but each cell appears to carry out the fundamental life functions‚ although certain ones may be specialized

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    efficiently e) All of the above 9. Chemical modification of nucleotides takes place while RNA is being transcribed. True or False 10. This organelle is responsible for ATP production and fatty acid oxidation. a) Rough endoplasmic reticulum b) Smooth endoplasmic reticulum c) Mitochondria d) Golgi apparatus e) Nucleus 11. Which of the following is FALSE about RNA Splicing? a) Exons are removed from the newly synthesized RNA and introns are stitched together. b) The process involves

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    ONION EPIDERMIS

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    chlorophyll‚ the pigment that gives plants their green color and allows them to perform photosynthesis. Specialized cell-to-cell communication pathways known as plasmodesmata‚[3] pores in the primary cell wall through which the plasmalemma and endoplasmic reticulum[4] of adjacent cells are continuous. The onion epidermal cell provides a protective layer against unwanted viruses that may harm the sensitive tissues. The clear epidermal cells consist of a single layer and contain chloroplasts‚ because the

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    Cell

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    DNA) | Circular DNA doesn’t need telemeres | Genetic Recombination: | Mitosis and fusion of gametes | Partial‚ undirectional transfers DNA | Lysosomes and peroxisomes: | Present | Absent | Microtubules: | Present | Absent or rare | Endoplasmic reticulum: | Present | Absent | Mitochondria: | Present | Absent | Cytoskeleton: | Present | May be absent | DNA wrapping on proteins.: | Yes | No | Ribosomes: | larger | smaller | Vesicles: | Present | Present | Golgi apparatus: | Present

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    (a) State two processes which involve mitosis. ..................................................................................................................................... ..................................................................................................................................... .....................................................................................................................................

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    ribosomes  endoplasmic reticulum  Golgi complex  outside of cell 9. Lysosomes are sometimes called ‘suicide bags’. Suggest why this name is given. a. Due to the fact that they contain dissolved digestive enzymes that‚ when released‚ can cause the death of a cell. 10

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