This PowerPoint helps students to consider the concept of infinity.
Physico chemical basis of life
1. Physico-Chemical Basis of Life Joy Grace Tablante More Free PowerPoint Templates at SmileTemplates.com
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3. Matter Flowchart MATTER Can it be physically separated? Homogeneous Mixture (solution) Heterogeneous Mixture Compound yes no Element MIXTURE PURE SUBSTANCE Can it be chemically decomposed? no yes Is the composition uniform? no yes Colloids Suspensions
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6. Compounds can either be Inorganic or Organic. These compounds are nutrients which provide energy or materials for all cell activities. Living things are mostly made of organic compounds that contain carbon and hydrogen. Often they contain oxygen too
20. CATION ANION when Li, Be and Ca loose their electrons the "new" valence electrons in the ion are drawn in. These elemental ions are stable in the sense that they will not readily gain or loose electrons. However, since they are charged they can combine electrostatically to form ionic bonds. the resulting compound is called "ionic" or "salt", e.g., Ca+ + 2Cl- ---> Ca(Cl)2 = calcium chloride. H + : a positively charged hydrogen ion H : the hydrogen atom H - : a negatively charged hydrogen ion
Calcium: The mineral that strengthens bone and teeth uses calcium. Also important in nerve synaptic transmission of nerve impulses and muscle contraction. Regulates the cell wall construction in plants. Phosphorus: Part of the phosphate groups in ATP and DNA molecules. In plants it is needed for cell reproduction and division. It is part of the cell membrane. Iron: found in the structure of hemoglobin and essential for the production of red blood cells. It is involved in the light energy transferring compounds involved in photosynthesis in plants. Sodium: Major ion associated with the propagation of a nerve impulse. Can replace potassium in some plants. Sulfur: It is a component of amino acids.
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