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What is the difference between an Ionic bond and a covalent bond?
Ionic is losing and gaining electron(s) Covalent is sharing the same electron(s)
This chemical reaction below is used to remove chlorine from water. What type of reaction is it? HClO + Na2SO3 ® Na2SO4 + HCl
Exchange synthesis reaction
List several properties of water that are important to living systems.
ability to act as a universal solvent, cohesion, adhesion,specific heat capacity help support the life processes and habitats of all organisms.
Antacids neutralize acid by the following reaction. Mg(OH)2 + 2HCl ® MgCl2 + H2O Identify the acid, base, and salt.
Mg(OH)=base; HCl=acid; MgCl2=salt
give examples of inorganic molecules
No carbon, structurally simple, water, salts, acids, bases
What are characteristics of an organic molecule? Give examples
always contains a carbon! Structurally complex, protiens, nucleic acids, lipids...
Define functional group
specific group of atoms in a molecule responsible for the chemical reactivity and behavior of organic compounds
What are the building blocks of carbohydrates?
carbon,hydrogen,oxygen with hydrogen and oxygen in a 2:1 ratio
Give an example of a disacharide
sucrose= glucose+fructose; lactose=glucose+galactose; maltose=glucose+glucose
Give examples of a polysaccharide
starch cellulose, glycogen
Identify the building blocks and structure of proteins.
Amino acids which is a carbon atom linked to an amino group, carboxyl group, H+ atom and a variable group
What two functional groups are in all amino acids?
amine (–NH2) and carboxylic acid (–COOH) functional groups, linked to the same carbon atom.
Compare and contrast DNA and RNA differ?
RNA contains the sugar ribose, DNA deoxyribose, DNA double strand, RNA single, RNA uses uracil, DNA thyamine; they both use Adenine, cytosil and guanine
Which can provide more energy for a cell and why: ATP or ADP?
ATP has 3phosphate molecules and more energy than ADP, which only has 2
under what conditions do endospores form?
harsh environments, form spores around DNA. cell dies off and DNA remains protected.
What are endospores
resting cells, resistant to desiccation, heat, and chemicals.
