Biology 101 Final Exam Questions With Guaranteed Pass Solutions.
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Course
BIOD 101
Institution
BIOD 101
Neutron - Answer A particle with no charge (neither positive nor negative) that is present in the nucleus is called Neutron
Proton - Answer a subatomic particle that has a positive charge and that is found in the nucleus of an atom
Electron - Answer an elementary particle with negati...
Biology 101 Final Exam Questions With
Guaranteed Pass Solutions.
Neutron - Answer A particle with no charge (neither positive nor negative) that is present in the
nucleus is called Neutron
Proton - Answer a subatomic particle that has a positive charge and that is found in the nucleus of an
atom
Electron - Answer an elementary particle with negative charge, negatively charged particle; located
outside the atomic nucleus
Mass number - Answer the total number of protons and neutrons in the nucleus of an atom
atomic number & mass number - Answer atomic number- number of protons in one atom of the
element.
mass number- number of protons + number of neutrons in one atom of the element
Isotope - Answer atoms of the same element that have different numbers of neutrons
ionic bond - Answer a chemical bond resulting from the attraction between oppositely charged ions
nonpolar covalent - Answer Bond formed when electron pairs are shared equally between atoms.
polar covalent - Answer a type of bond that forms when electrons are not shared equally
hydrogen bonds - Answer very weak bonds; occurs when a hydrogen atom in one molecule is attracted
to the electrostatic atom in another molecule
, adhesion - Answer the clinging of 1 substance to another by means of hydrogen bonds
cohesion - Answer tendency of molecules of the same kind to stick to one another
surface tension - Answer A measure of how difficult it is to stretch or break the surface of a liquid.
Water has a high surface tension because of the hydrogen bonding of surface molecules.
solute - Answer the dissolved substance in a solution
solution - Answer a homogeneous mixture of two or more substances
solvent - Answer a liquid substance capable of dissolving other substances
acid - Answer compound that donates H+ ions to an aqueous solution and measures less than 7 on the
pH scale
base - Answer any substance that forms hydroxide ions in water and has a pH above 7
ph - Answer A measure of hydrogen ion concentration equal to -log [H+] and ranging in value from 0 to
14.
4 classes of macromolecules - Answer A. Carbohydrates. B. Lipids. C. Proteins. D. Nucleic Acids.
dehydration synthesis - Answer A chemical reaction in which two molecules covalently bond to each
other with the removal of a water molecule.
hydrolysis - Answer Breaking down complex molecules by the chemical addition of water
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