Tick (v) if it is a true statement. Chapter 2 Cell Structure and Cell Organisation 1. The cell is the basic unit of life for all organisms. 2. All cells have the same shape and size. 3. All cells have a plasma membrane‚ nucleus and cytoplasm. 4. Protoplasm consists of a plasma membrane and nucleus. 5. The nucleus consists of chromosomes and a nucleolus. 6. Organelles that are found in the cytoplasm of a cell include the nucleus‚ vacuole‚ endoplasmic reticulum‚ mitochondria and Golgi apparatus.
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Living Plant Cell Objectives: * To study the different types of plant cells. * To observe plant cells as to their shapes‚ structures and function. Materials: Microscope cover slip glass slide water onion Iodine soln. hydrilla salt tomato razor blade Medicinal dropper epidermal tissue of rhoeo-discolor Procedure: 1. Onion Cell 1. Prepare an onion bulb 2. Place a drop of water at the center of the slide. 3. Pell off a thin
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Compound Microscope Parts A high power or compound microscope achieves higher levels of magnification than a stereo or low power microscope. It is used to view smaller specimens such as cell structures which cannot be seen at lower levels of magnification. Essentially‚ a compound microscope consists of structural and optical components. However‚ within these two basic systems‚ there are some essential components that every microscopist should know and understand. These key microscope parts are illustrated
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like a pet. It was white as snow and fat as a whale. It had oversized teeth that were 8 iches in length. His paws the smaller than half dollar coin. 5.the lake was beautiful from a distance‚ but when I got closer it became a filthy swamp full of hydrilla. When I got by the shore I noticed the sand was black as night. There were dead species in the water. 6.the cave was full of diseased coons. There were bats hanging from every square inch in the cave. Its was the darkest most 7.the come to a
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years. When word of the fourteen pound largemouth spread throughout the state‚ Lake Monticello became one of the premier bass lakes in the southwest. This East Texas Lake also has a variety of cover for anglers to fish including flooded timber‚ hydrilla and lily-pads. Some of the best winter time bass fishing is located on the northern end of the lake. Anglers can pursue spawning fish
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PERFECT SCORE BIOLOGY 2011 BAHAGIAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER KEMENTERIAN PELAJARAN MALAYSIA PERFECT SCORE BIOLOGY 2011 Teacher’s Module 1 PERFECT SCORE BIOLOGY 2011 Paper 2 – Section A: Structural Questions 1. Marks Student notes Diagram 1.1 shows a somatic cell of an insect undergoing meiosis. Process X R: Centromere Q: Chromosome/ chromatid S: Nuclear membrane Diagram 1.1 (a) Label Q‚ R and S in Diagram 1.1. [3 marks] (b)
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Fixed 1. A thin cuticle. Cuticles primarily discourage water loss; thus most hydrophytes have no need for cuticles. 2. Stomata that are open most of time because water is abundant and therefore there is no need for it to be retained in the plant. This means that guard cells on the stomata are generally inactive. 3. An increased number of stomata‚ that can be on either side of leaves. 4. A less rigid structure: water pressure supports them. 5. Flat leaves on surface plants for
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Report on Visit to Deepor Beel in Assam – a wetland included under National Wetland Conservation and Management Programme of the Ministry of Environment & Forests. 13-14 August 2008 1. Context The Expert Team constituted by the Planning Commission‚ Government of India‚ to Review the status of implementation of the National Wetland Conservation and Management Programme (NWCMP) of the Ministry of Environment & Forests‚ by visiting selected wetlands in the country‚ made an on-the-spot review and
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Secondary School Certificate Examination Syllabus BIOLOGY CLASSES IX-X (based on National Curriculum 2006) Published by Aga Khan University Examination Board Bungalow # 233 / E.I.Lines‚ Daudpota Road‚ Karachi‚ Pakistan. November 2004 Latest Revision June 2012 All rights reserved This syllabus is developed by Aga Khan University Examination Board for distribution to all its affiliated schools. Secondary School Certificate Examination Syllabus BIOLOGY CLASSES IX-X
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limited to the ability of Basella rubra to effectively stain normal blood stain 1995 Del Mundo‚ Layah Basella rubra as a biological stain Experimental The alugbati extract turned out to be favorable stain for plant nuclei and organelles especially for Hydrilla verticillata and as substitute for crystal violet or safranin in Gram staining. The extract stained the bacteria red-orange and the plant nuclei‚ and the cytoplasm red and light pink‚ respectively. The study is limited to the ability of Basella rubra
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