BIO 103: Comprehensive Final Exam Questions and Answers 2024;full solution pack

Living organisms are characterized by how ________. - they are organized, they respond to stimuli, they acquire materials and energy from their environment The ______ is composed of a variety of molecules working together and is the basic unit of structure and function of all living things. - cell ____________ combine with other atoms of the same or different elements to form molecules. - atoms Atoms strive for stability. They want to complete their outer shell by _________. - giving up an electron, accepting an electron, sharing an electron An atom's atomic number is best described as the number of ___________. - protons it contains What is a molecule? - two or more atoms held together by covalent bonds What is a tissue? - A group of similar cells that perform a specific function. What does hydrophobic mean? - fear of water What does hydrophilic mean? - water loving What are neutrons? - the particles of the nucleus that have no charge What are protons? - positively charged particles What are electrons? - negatively charged particlesWhat are organic molecules? - molecules that contain carbon and hydrogen What are inorganic molecules? - non-carbon based molecules What are monomers? - building blocks of polymers DNA and RNA are made up of which kind of monomers? - nucleotides What are polymers? - long chains of monomers During dehydration, ________ is removed and a bond is formed when monomer's join together. - water What is dehydration? - A serious reduction in the body's water content What is hydrolysis? - the process by which polymer's are turned into monomers What is the difference between prokaryotic and eukaryotic cells? - What are the four kingdoms of Eukarya? - Protista, Fungi, Plantae, Animalia What are the three domains? - Bacteria, Archaea, Eukarya eukaryotic, multicellular, autotrophic, non-motile, both sexual and asexual reproduction - Kingdom Plantae eukaryotic, multicellular, heterotrophic, motile, sexual reproduction - Kingdom Animaliaprokaryotic, unicellular, both auto- and heterotrophic, motile and nonmotile, reproduce by binary fission - Domain Bacteria eukaryotic, mainly unicellular, both auto- and heterotrophic, sexual and asexual reproduction - Kingdom Protista eukaryotic, multicellular, heterotrophic by absorption (most are saprotrophic), nonmotile - Kingdom Fungi What are hydrogen bonds? - a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other. Bonds that are weak are called _________. - hydrogen What type of bond is formed when atoms share electrons? - covalent The type of bond formed when electrons are transferred from one atom to another is called ________. - ionic What are the characteristics of water? - water molecules are cohesive and adhesive, temperature rises and falls more slowly than most other liquids, water is a universal solvent Select the INCORRECT statement regarding the characteristics of water. - frozen water is more dense that liquid water