Mitosis in Plant and Animal Cells OBJECTIVES Observe and identify cells undergoing the process of mitosis. Compare the stages of mitosis in plant cells with these stages in animal cells. MATERIALS • compound light microscope • prepared slides (longitudinal sections of onion or garlic root tips) • prepared slides (whitefish blastula or other animal tissue) Procedure PART 1: MITOSIS IN PLANT CELLS 1. Observe a prepared slide of a longitudinal section of onion or garlic root tips. Use low
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Mitosis is a cellular process that replicates chromosomes and produces two identical nuclei in preparation for cell division‚ from the original cell two cells are derived‚ each of which possesses the same genetic material. Mitosis has five phases: interphase‚ prophase‚ metaphase‚ anaphase and telophase. Interphase The DNA duplicates during interphase to prepare for mitosis. Chromosomes are not clearly discerned in the nucleus. Prophase Chromatin in the nucleus begins to condense and becomes visible
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Biology Inheritance – Mitotic Squash of Garlic Root Tip Mitosis is the process of cell division; it is the process by which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets in two nuclei. It is generally followed immediately by cytokinesis‚ which divides the nuclei‚ cytoplasm‚ organelles and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic phase of the cell cycle—the
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USE OF ONION ROOT TIPS FOR MITOTIC DIVISION OBSERVATIONS Introduction The zone of cell division on the onion root tip is a great place to observe mitotic cell divisions. Through the observation and comparison of different regions of the root tip‚ the duration of mitotic stages and mitotic indexes are determined for the various divisions of the root tip. Methods Each group used a compound microscope to analyze the different sections of the onion root tip. The root tip was visually
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Planning Exercise Aim To investigate the effect of phosphate on cell division in root tips. Background knowledge Phosphate ions (macronutrients) are needed large amounts by plants. They are required for root growth. For the root tips cells to divide‚ mitosis has to occur. Phosphate is needed for production of ATP which provides energy for mitosis to occur. DNA replication occurs during interphase of the cell cycle. DNA is made up of nitrogen containing base‚ pentose sugar and phosphate group
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Mitosis Lab Mitosis in Onion Root Tips Make a sketch of a representative cell in each of the four stages of mitosis in the space provided below. Prophase Metaphase Anaphase Telophase Can you distinguish any cells? Yes‚ you can identify cells that are undergoing development. In prophase‚ the chromosomes make and x shape. In metaphase‚ the chromosomes are moved to the middle of the cell. In anaphase‚ the chromosomes look like they are being pulled apart. And in telophase‚ the cell starts
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Steven Kushmakov Prof. Walljasper HMGT 1203 November 11‚ 2009 Garlic GARLIC One could trace garlic back archaeologically to around 3‚000 B.C. It was first discovered in Southwest Asia; where it was just considered as a plant. When garlic was first discovered‚ it had many uses. To some it was just used to add an extra taste to food‚ but to others it was used for medical purposes. Even the ancient Egyptians
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the World War 2. 3. The title “Who Among You Knows the Essence of Garlic” and the way he presented his perceptions show that the author is witty‚ knowledgeable‚ and extraordinarily sensitive. For the title‚ I felt that it was very eye catching‚ for it is not common for someone to ask about garlic. The moment I knew what the title was‚ it got me thinking if food was going to be the topic of the poem because garlic is known as an ingredient in a lot of dishes. For the way he presented his
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Practical 1: Observation of mitosis in garlic root tips Introduction The practical will involve the preparation‚ observation‚ and classification‚ of the various stages of mitosis by observing garlic root tips using a microscope. The study comes under the heading of cytogenetics which is the visual characterisation of genetic material and the study of how that material reacts during the life of the cell. Strictly speaking‚ mitosis is the division of the nucleus into two daughter nuclei that are
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PHYTOCHEMICALS IN GARLIC ESTHER MERILUS 11SP-HESC-115-DEO1D MRS. NAGLER 27‚ APRIL‚2011 Phytochemicals in Garlic Outline Introduction Garlic Active Compounds Types of Preparation Potential Health Benefits Side Effects Conclusion Phytochemicals in Garlic Introductions Phytochemicals are “compounds found in plant-derived foods that have biological activity in the body” (Whitney and Rofles 469). They are classified as non-nutrients. They are found in fruits and vegetables
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