The chemistry of life

What is solution? A heterogeneous mixture of two or more substance A homogeneous mixture of two or more substance A homogeneous mixture of only one substance A heterogeneous mixture of only one substance Which is an example of both a solution and suspension? Water Blood Hydrochloric acid Potassium hydroxide An acid when mixed with water produce Hydrogen ions Hydroxide ions Sodium ions Chlorine ions What is the function of RBC? Supplies food to cells takes co2 from cells Supplies oxygen to cells fight against diseases which of these is not a strong base? KOH (Potassium hydroxide) NaOH (Sodium hydroxide) Ca(OH)2 (Calcium hydroxide) NH3 (Ammonia) What exactly the pH scale measure in an acid or a base? Concentration of the liquid given Concentration of water Concentration of OH- ions Concentration of H+ ions Which of the following does not bond with carbon to make life's molecules? Nitrogen Magnesium Phosphorous Sulfur Which of these is an example for solvent? Salt water Fresh water Sugar water koolaid Which property of water helps it to dissolve with other substances? Cohesion Adhesion Polarity Specific heat capacity Equal number of hydrogen ions and hydroxide ions corresponds to a pH of? 6 7 8 9 What are buffers? Why blood is known as buffer? What properties of carbon helps it to form large and complex structures? Name four groups of organic compounds found in living things Differentiate bertween a monomer and polymer. How ill you identify a saturated fatty acid and an unsaturated fatty acid? what are the two major groups of lipids? Explain how lipids help in regulating body temperature