PATTERNS IN NATURE – Summary Notes 1. ORGANISMS ARE MADE OF CELLS THAT HAVE SIMILAR STRUCTURAL CHARACTERISTICS 1.1 Outline the historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown The Cell Theory states that: All living things are made of cells (Theodor Schwann & Matthias Schleiden) Cells are the basic structural and functional unit of organisms (Theodor Schwann) All cells come from pre-existing cells (Rudolf Virchow) The historical
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organelle with the largest volume is the nucleus‚ which contains the genetic material. (See Figure 1). Cell Inclusions are secretory and storage chemical substances without membranes. They include melanin‚ glycogen and triglycerides. Melanin is a pigment stored in the skin. Glycogen is a polysaccharide stored in the liver‚ skeletal muscle. Triglycerides which are stored in the adipocytes‚ (Tortora and Grabowski‚ 1996). Figure 1-1 Cell ultrastructure Source-www.biologia.com Figure 1-1 Cell ultrastructure
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Onda‚ Kristal H. TTH 8:30-10:00 am BSAC3 BIOLOGY 1. How plants grow and develop? Just as humans have essential needs for survival‚ all plants require several basic elements to grow and thrive‚ including… Soil minerals (the more nutrient-rich the soil‚ the better the plant will grow) Water Air (carbon dioxide‚ hydrogen and oxygen) Sunlight Proper soil temperature Proper air temperature How much a plant needs of each element initially depends on the plant’s original habitat. For example
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Chapter 1 * animal Multicelled consumer with unwalled cells; develops through a series of stages and moves about during part or all of the life cycle. * archaean Member of a group of single-celled microorganisms that superficially resemble bacteria‚ but are genetically and structurally distinct. * atom Particle that is a fundamental building block of all matter. * bacterium Single-celled organism belonging to the Domain Bacteria; cells are typically walled and do not
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CHAPT 1 - The scientific method allows the solving of problems and answering of questions. Observations Proposing ideas Testing the ideas Discarding or modifying ideas based on results Hypothesis: proposed explanation for a set of observations Hypotheses needs to be: Testable – it must be possible to examine the hypothesis through observations Falsifiable – it must be able to potentially be proven false Both logical and creative influences are used to develop a hypothesis A hypothesis
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OCR BIOLOGY UNIT F221 Blood tests 1. Put a band (tourniquet) around the arm to make the vein stand out 2. Clean the area around the vein with an alcohol based solution 3. Push a sterile needle‚ attached to a sterile syringe into the vein 4. Pull back the plunger of the syringe to suck the blood into the syringe 5. When the necessary volume of blood has been extracted‚ remove the syringe and needle‚ loosen the tourniquet and press a small ball of cotton wool over the
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Chapter 2: Patterns in Nature 1. Cell theory • 1590: Dutch grind glass lens (1st compound microscope) • 1665: Robert Hooke uses compound m. analysis thin cork slices as filled with air enclosed in boxes (cells) distinct • 1676: Dutch sees microorganism under microscope from pond water • 1824: French suggest all organisms composed of cells • 1827: Robert Brown (Brownian motion) discovered nucleus in plant cell • 1838: German produced evidence that all organisms made of cells • 1859:
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BIO 180 Exam 1 Study Guide Name: __________________________ Date: _____________ 1. This is the study of the functions of body structures. 2. This is defined as a group of cells with similar structure and function. 3. Using your fingers to find your pulse on your wrist is an example of 4. This is the sum of all cellular processes that occur in the body. 5. This is the regulation of body conditions within normal limits. 6. This is the structure of a feedback system that receives
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the purpose of fixation is to Maintain‚ as closely as possible‚ the cytomorphologic characteristics and diagnostically essential cytochemical elements of the cell. (Yoshida‚ 2004) Deactivate autolytic enzymes Replace cellular water Facilitate diffusion of dyes across cell boundaries Help cells adhere to a glass slide surface. Stop cellular and microbial growth (anti-microbial). (Bibbo‚ 2008) Whilst avoiding; Excessively shrinking or swelling cells. Distortion or dissolving of cellular components
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GLOSSARY OF FLEXOGRAPHIC PRINTING TERMS AA: Authors Alterations‚ changes other than corrections‚ made by a client after the proofing process has begun. AA ’s are usually charged to a client as billable time. Abrasion: Process of wearing away the surface of a material by friction. Abrasion marks: Marks on a photographic print or film appearing as streaks or scratches‚ caused by the condition of the developer. Can be partially removed by swabbing with alcohol. Abrasion resistance:
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