Biology 101 final exam questions and answers with latest solutions.

Biology 101 final exam questions and answers with latest solutions. Neutron - correct answers.A particle with no charge (neither positive nor negative) that is present in the nucleus is called Neutron Proton - correct answers.a subatomic particle that has a positive charge and that is found in the nucleus of an atom Electron - correct elementary particle with negative charge, negatively charged particle; located outside the atomic nucleus Mass number - correct total number of protons and neutrons in the nucleus of an atom atomic number & mass number - correct c 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 - correct of the same element that have different numbers of neutrons ionic bond - correct answers.a chemical bond resulting from the attraction between oppositely charged ions nonpolar covalent - correct answers.Bond formed when electron pairs are shared equally between atoms. polar covalent - correct answers.a type of bond that forms when electrons are not shared equally hydrogen bonds - correct weak bonds; occurs when a hydrogen atom in one molecule is attracted to the electrostatic atom in another molecule adhesion - correct clinging of 1 substance to another by means of hydrogen bonds cohesion - correct ncy of molecules of the same kind to stick to one another surface tension - correct answers.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 - correct dissolved substance in a solution solution - correct answers.a homogeneous mixture of two or more substances solvent - correct answers.a liquid substance capable of dissolving other substances acid - correct und that donates H+ ions to an aqueous solution and measures less than 7 on the pH scale base - correct substance that forms hydroxide ions in water and has a pH above 7 ph - correct answers.A measure of hydrogen ion concentration equal to -log [H+] and ranging in value from 0 to 14. 4 classes of macromolecules - correct answers.A. Carbohydrates. B. Lipids. C. Proteins. D. Nucleic Acids. dehydration synthesis - correct answers.A chemical reaction in which two molecules covalently bond to each other with the removal of a water molecule. hydrolysis - correct answers.Breaking down complex molecules by the chemical addition of water proteins - correct ins carbon, hydrogen, oxygen, and nitrogen. source of energy. needed by tissue for repair and growth. made up of 20 amino acids. carbohydrates - correct und made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body lipids - correct emicals that do not dissolve in water (fats, oils, and waxes) make up cell membranes, store energy nucleic acids - correct answers.Polymers assembled from individual nucleotides; used to store and transmit hereditary, or genetic, information; the two kinds of nucleic acids are ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) (p. 47). 4 structural levels of a protein - correct answers.Primary (First), Secondary (Second), Tertiary (Third), Quaternary (Fourth)