Prokaryotic cells are single celled organisms that were formed at the formation of the earth‚ so are the most basic life forms. The prokaryotes are organised in the ‘three domain system’ and include bacteria and blue-green algae. Prokaryotes live in many environments including extreme habitats such as hydrothermal vents‚ hot springs‚ swamps‚ wetlands‚ and the guts of animals. This is a diagram of a prokaryote cell and it shows that they are not very complex cells. They do not contain any membrane
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own DNA‚ cristae | Vacuole | "Storage tanks" Can hold food‚ water or waste for the cell | Ribosome | Makes proteins for the cell‚ can be found attached to the endoplasmic reticulum or free in the cytoplasm | Endoplasmic Reticulum (ER) | Transportation network for the cell‚ moves materials around in the cellRough Endoplasmic Reticulum (RER)- endoplasmic reticulum that has ribosomes attached.Smooth Endoplasmic Reticulum (SER)- does not have ribosomes attached | Lysosome | "Stomach of the cell"
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Ticks constitute the Suborder Ixodida‚ of the acarine Order Parasitiformes‚ and are exclusively parasitic. The Ixodida contain three families‚ the Ixodidae ‚ Argasidae ‚ and Nuttalliellidae. The specimens collected in our data are of the Amblyomma genus falling under the Ixodidae family. (Horak et al.‚ 2002). Amblyomma life cycle includes four stages: the egg‚ larva‚ nymph with only one nymphal instar‚ and adult. All ticks feed on blood during some or all stages in their lifetime because they are
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41) ______ are the major lipids of plasma membranes. Phospholipids 42) Where does protein synthesis take place? on ribosomes 43) Which of the following is a function of the Golgi apparatus? protein modification 44) Lysosomes are responsible for
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and out of the cell. A real life example of how the Cell Membrane works is in skin cells. In a skin cell the Cell Membrane works to prevent viruses and bacteria from entering the body. Other less important parts of the cell are things like Lysosomes‚ Vacuoles‚ and Spicuoles. Though all are important‚ some organelles have less important functions than others. In our Animal Cell diagram‚ we used different objects to represent the different organelles from within the cell. To represent the Nucleus
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at cork using a microscope Schleiden: all plants are made of cells Virchow: Cells come from other Cells Organelle- structure in a cell that performs a specific function Nucleolus- dark spot in the nucleus where ribosomes are made Lysosome- sac of digestive enzymes Rough ER- covered by ribosomes and sends modified proteins to the Golgi Apparatus Cell Wall- found outside cell membrane in plant cells and bacteria‚ provides support and protection Mitochondria- store energy as
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SNC 2DO EXAM REVIEW January 2014 The exam is based on the entire semesters work. Chemistry 1. Label the following on a periodic table: a) Alkali metals b) Alkaline earth metals c) Halogens d) Noble gases 2. Indicate the metals‚ non-metals and metalloids. -38100431803. Show the trends for reactivity and atomic radius. 4. Which of the following elements has the largest atomic radius? Why? a) fluorine b) oxygen c) nitrogen d) calcium Calcium has the largest atomic radius
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-made up of ________ membrane units -the site of _________ production through cellular respiration. Glucose + O2 Energy + H2O + CO2 -energy released is used for cellular _______. 4. Lysosomes (animal cell) -contain hydrolytic ______. -membrane-bound sac -release enzyme to _______ material in food vacuoles in organisms like Paramecium -break down complex organic molecules (eg protein‚ lipid‚ polysaccharides & nucleic acid). -digest _____‚ dead or damage _______ to enable a cell to renew
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central vacuole- Within a mature plant cell‚ this is a membranous sac with diverse roles in development‚ growth‚ and reproduction 8. centriole- A structure in an animal cell that is made up of cylinders that form microtubule triplets arranged in a 9 + 0 pattern.
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All organisms that are considered to be alive must possess certain key characteristics or functions. These include: order‚ response to the environment‚ reproduction‚ growth and development‚ regulation‚ energy processing and evolution. Since we recognize life by what living things do‚ these seven characteristics serve to define life. Organisms consist of one or more cells and while they may be very complex they are highly organized and coordinated. Inside each cell‚ atoms make up molecules.
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