WEEK 2 Written Assignment I’m thinking no more than 1-2 paragraphs each for 3 & 4. 1. List the qualities (at least 6) that define life AND discuss how a single-celled organism‚ such as an Amoeba or a yeast cell‚ and a more complex one‚ such as a tree or a cat‚ matches up with each characteristic 1. Living things have cells. 2. Living things grow 3. Living things reproduce 4. Living things respond to stimuli 5. Living things use energy 6. Living things adapt to their environment A single celled
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example of where the reaction might be biologically important. Answer: Hydrolysis: Hydrolysis uses water (and various enzymes) to break down molecules into smaller‚ simpler molecules. This occurs by breaking a bond on the reactant and adding a hydrogen atom to one part‚ and a hydroxyl (-OH) to the other. The result is 2 simpler molecules. Macromolecule + Water molecule + molecule This process aids us in controlling blood sugar‚ by the hydrolysis of glycogen to glucose. Glycogen +
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compare that relative reactivity of Na and k -Sodium and potassium react somewhat similar when reacting with water however they are slightly different. Sodium moves because of the hydrogen coming off of it and has a low melting point while potassium’s reaction is faster and enough heat is produced to set light to the hydrogen coming off of it. Each leaves a pink color hue in the water. Discuss the similarities and differences in the behavior of the metals tested with water relative to their positions
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two samples of hydrogen to contain the same number of atoms‚ yet have different weights? Exactly two atoms of hydrogen combine with one atom of oxygen. But individual atoms are far too small and too nomerous to be counted‚ so chemists use a unit called mole. 4. Define chemical bond and indetify several types of chamical bonds. Chemical bond - hold the participating atoms together once the reaction has ended. Three basic types of chemical bonds: ionic bonds‚ covalent bonds‚ hydrogen bonds. 5. Which
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CSEC CHEMISTRY NOTES ON PERIODIC TRENDS From Chemistry for CSEC by Tania Chung-Harris and Mike Taylor Chemistry for CAPE by Susan Maraj and Arnold Samai Periodic Trends in Group II Elements in Group II The elements in Group II are called alkaline earth metals. Be‚ Mg‚ Ca‚ Sr‚ Ba‚ Ra Beryllium‚ Magnesium‚ Calcium‚ Strontium‚ Barium‚ Radium These elements bond by metallic bonds (intramolecular forces) to form giant metallic structures. The size of the
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Chapter 1 Section 1 Anatomy-Study of internal and external structures of the body and the physical relationships among body parts Gross Anatomy -involves the examination of relatively large structures and features usually visible with the unaided eye Microscopic Anatomy-deals with structures that cannot be seen without magnification Physiology-the study of function and considers the functions of the human body Anatomy and physiology are closely interrelated Theroretically Practically Anatomical
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Exercise – Hydrogen Bond Phase Transition (TRACK 2 ONLY) Writing & Marking Rubric Instructions: 1.Go to Core Study Resources → III Symmetry in Crystals → Downloads and Links. 2.Download the following: a. Yoshida et al.‚ Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor. Symmetry 4‚ 507 – 516 (2012). b. Writing and Marking Rubric Scaled to 22 Marks Beauty‚ Form and Function: An Exploration of Symmetry Writing Exercise 1. Read Flexibility of Hydrogen Bond and
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Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard‚ except alkali metals‚ such as sodium‚ potassium‚ lithium‚ etc. Sodium‚ potassium‚ lithium etc. are very soft metals‚ these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals
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1. Define science – Science is the development of concepts about the natural world ‚ often by using the scientific method 2. Define multicellular organism - are those organisms containing more than one cell‚ and having differentiated cells that perform various functions. 3. Identify the 3 domains of living things. Which domains include one-celled organisms with no nucleus? a) Organized‚ Homeostatic & Reproduce. b) Bacteria & Archaea 4. Modern taxonomists (scientists
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Method – PG 5‚ 6‚ 7 Preliminary – PG 7 Actual experiment and graphs – PG 7+ Chemistry coursework Hypothesis/Aims The aim of the investigation is to see how different concentrations of hydrochloric acid affects the rate at which hydrogen gas is produced when it’s reacted with a strip of magnesium. The rate of reaction is a measure of change that happens in a single unit of time. When a reaction takes place the particles of the reactants collide. The more often the particles collide
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