Bio 110 Exam #1questions with accurate answers graded a+

inability to change - correct answers Which of the following would NOT be a key characteristic of "life" DNA - correct answers Non-living things would NOT naturally contain Cell - correct answers The smallest unit of life that can exist as a separate entity is the One proton - correct answers The smallest ion is made up of +1 - correct answers The smallest ion has what charge Reproduction,growth,development - correct answers During metabolism, ATP is used as an energy source for which of the following processes Metabolism - correct answers The ability to acquire,store,transfer,or utilize energy is called Carbohydrates - correct answers Which of the following is the first or primary source of energy in the human body single base pair in DNA - correct answers A mutation is a change in Constant - correct answers Homeostasis provides what kind of environment Water - correct answers Blood pH is near a value of 7 because of Non-polar - correct answers Fats and oils are Acidosis - correct answers If a patient's blood pH was found to be 7.15 the patient would be said to have Polar - correct answers Sugars dissolve in water,therefore,they are Share electrons unequally - correct answers Polar covalent bonds are produced when two or more atoms Hypothesis - correct answers Of the following,which is the first explanation of a problem Experiments - correct answers In order to arrive at a solution to a problem,a scientist usually devises one or more Hydrogen bonds - correct answers Water molecules are attracted to each other by Molecule - correct answers O2 is an example of a Atom - correct answers Which is the smallest portion of an element that retains the properties of that element Contains electrons and neutrons; the heaviest part of an atom - correct answers The nucleus of an atom Has one proton+ one electron - correct answers The simplest atom Becomes Oxidized - correct answers If an atom loses an electron it Lose two electrons - correct answers If an element has 4 protons, it would tend to Carbon - correct answers The essential element in an organic compound is 1.0 X 10 to the negative 3 power - correct answers A solution with a pH of 3 has a [H+] of Buffer - correct answers A substance that helps maintain pH balance is known as a pH 8 - correct answers Which of the following is closer to the pH of D/W Three - correct answers How many electrons are needed to make Phosphorous have a stable valence shell 100 - correct answers A solution with a pH of 9 is how many times more basic than a solution with a pH of 7 Reactants - correct answers In a chemical equation, the chemicals to the left of the arrow are Ion - correct answers An atom that gains or loses electrons is called an Nonpolar covalent bonds - correct answers Both atoms exert the same pull on shared electrons Oxidation reactions - correct answers Cation ions are formed by Ionic - correct answers Sodium is bonded to chlorine in the formation of sodium chloride by what type of chemical bond Polar covalent - correct answers Water is composed of two atoms of hydrogen and one atom of oxygen held together through what type of chemical bond #protons=#electrons in each, their outer electron shell contains the same # of electrons - correct answers What do atoms of 6C12, 14Si28, and 32Ge73 have in common Ions - correct answers A salt will dissolve in water to form Is polar and forms many hydrogen bonds with the water molecules - correct answers Glucose dissolves in water because it Buffers - correct answers Cellular pH is kept near a value of 7 because of 4 - correct answers Carbon usually forms how many bonds with other atoms 1 carbon,2 oxygen - correct answers Carbon has an atomic number of 6 while oxygen has an atomic number of 8. Which combination of carbon and oxygen atoms would produce a stable molecule Nucleotides - correct answers Which of the following is NOT a macromolecule An equal amount of H+ and OH- - correct answers Water ionizes to form Excess neutrons - correct answers Radioactive isotopes have Hydrophilic - correct answers Substances that are polar and mix with by water Base - correct answers Any substance that releases hydroxyl ions in water is a Acid - correct answers Any substance that releases hydrogen ions in water is an Subatomic particle - correct answers Which is the smallest level of organization listed Partially charged molecules - correct answers Unequal distribution or unequal sharing of electrons between atoms will result in Carbohydrates,Lipids,Proteins,Nucleic Acids - correct answers Organic macromolecules C - correct answers Calcium Cl - correct answers Chlorine Mo - correct answers Molybdenum Fe - correct answers Iron Zn - correct answers Zinc S - correct answers Sulfur Na+ +Cl- - correct answers NaCl H+ +Cl- - correct answers HCl Na+ +OH- - correct answers NaOH Transfer of electrons between atoms - correct answers Ionic bonds involve a Sharing of electrons between atoms - correct answers Covalent bonds involve a Transfer of electrons - correct answers Redox Reactions