Introduction Water plays a vital role in biological systems. Some species are able to survive in diverse environment such as fishes in salt water‚ Cactus plants in dry land and mammalian cells in aqueous surrounding because of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the
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Aim: Observing pond water. Materials: Microscope‚ slide of pond water‚ protests/monera handouts. Procedure: 1. Collect microscope from trolley. 2. Set up microscope and switch on the microscope light. 3. Collect specimen and handouts. 4. Sketch 4-6 different species on medium power setting. 5. Try to estimate size of cells. Observations: I noticed that there was a lot of activity on the slide. There were many little circle-shaped things that were moving quickly all over the slide. I saw a
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Variation plays a vital role in human survival. Variation occurs in the process of meiosis. Meiosis is the process in which human sex cells‚ called gametes‚ are produced. Meiosis starts with a parent cell‚ called a diploid‚ replicating its DNA. After the DNA is replicated‚ the chromosomes line up in the middle of the cell where each pair touches each other and genetic information from the alleles are shuffled and exchanged‚ a process called crossing-over. The crossing-over over of chromosomes results
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How is the structure of cells related to their function? Cell structures come in various shapes and sizes dependent on their location within an organism and what life sustaining process it carries out. These can range from the globular protein of a red blood cell‚ designed to carry four oxygen molecules at a time to the tail like flagellum of a bacteria designed for mobility and penetration of organs within a body. There are two main types of cells‚ eukaryotic cells which are generally plant
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Name: ______________________________________ Date: ________________________ Student Exploration: Cell Structure Vocabulary: cell wall‚ centriole‚ chloroplast‚ cytoplasm‚ endoplasmic reticulum‚ Golgi apparatus‚ lysosome‚ mitochondria‚ nuclear envelope‚ nucleolus‚ nucleus‚ organelle‚ plasma membrane‚ plastid‚ ribosome‚ vacuole‚ vesicle Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What are some of the structures inside a cell that help it to live and perform its role in an
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Lab 2: Animal and Plant Cells Purpose: To examine the differences between single cell and multi cell organisms in terms of Animal and Plant cells. Question: What are the differences between multi and single celled plant and animal organisms? Prediction: Spirogyra Cell: The parts of the spirogyra cell that will be visible under the microscope will be; cell wall‚ cell membrane‚ nucleus‚ chloroplasts‚ vacuole and cytoplasm. Banana Cell: The parts of the banana cell that will be visible
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Animal cells are distinct from plant cells. Animal cells lack a cell wall (cellulose) which allows the animal to move without breaking it’s cells apart. When you break a piece of celery‚ the noise It has a nucleus‚ a cytoplasm and a cell membrane. http://wiki.answers.com/Q/What_are_some_animal_cel... What are facts about on animal cells? theyt have no cell wall. they have a nucleus and nucleolus. http://wiki.answers.com/Q/What_are_facts_about_on_... What are some facts on an animal cell
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For this experiment‚ there were four onion bulbs labeled A‚ B‚ C‚ and D. Bulbs B‚ C‚ and D were each immersed in a different concentration of coffee. Bulb A acted as the control because it was not immersed in any concentration of coffee; instead‚ the onion roots grew in water. The following is a list‚ in order‚ of the concentration of caffeine bulbs B‚ C‚ and D were in: 0.1%‚ 0.3%‚ and 0.5%. Four test tubes were gathered to set up the experiment‚ each holding an onion bulb. After each day‚ every
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Evolution and Microbiology Name: Sara Reed Grade: MYP2 Subject: Biology Teacher: Lana Brkic Evolution The Big Bang The Creation The Big Bang: * 15 billion years ago‚ universe created in explosion * 5 billion years ago‚ Earth was created * Beginning Earth was hot‚ molten spinning ball‚ as it became cooler‚ it became more and more solid * No water on surface‚ and atmosphere wasn’t formed * Evidence: 1. Universe still
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PRACTICAL 2 Title: Modelling of mitosis Objectives: To represent the pairs of homologous chromosomes by using pairs of model chromosomes. Introduction: Materials: 1. Noodles 2. Cutter Method: 1. The pair of model chromosomes is used to demonstrate how the two chromosomes line up at the beginning of mitosis. 2. After that the way of the sister chromatids of each chromosome separate into two separate chromosomes is demonstrated. 3. The spindle fibers that pull the sister chromatids apart is represented
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