1) What type of ion forms when an atom loses electrons? a) neutral b) positive c) negative 2) Which of the following statements is true about catalysts? a) catalysts lower activation energy b) catalysts are used up in a reaction c) all catalysts like acid solution d) catalysts slow down chemical reactions 3) A major function of fats, or lipids, is to a) store energy b) contain genetic information c) speed up chemical reactions d) helps with photosynthesis e) quick energy 4) Proteins contain which elements? a) CHO b) CHON c) CHONP d) HON e) COP 5) Amino acids are an example of a) nucleic acids b) carbohydrates c) lipids d) proteins 6) A solution with a pH of 1 is considered to be a(n) a) base b) acid c) neutral 7) In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result, the oxygen atom is a) neutral b) posititive c) negative 8) A saturated fat will have _____ bonds, _____ in color and found more in ______. a) double, yellow, animals b) single, yellow, animals c) single, white, animals d) double, white, plants e) double, white, animals 9) Which of the following make up water? a) 1 atom of H and 2 atoms of O b) 1 atom of O and 2 atoms of H c) 1 atom of Na and 2 atoms of O d) 1 atom of H and 1 atom of O 10) Cohesion creates a) capillary action b) surface tension c) high specific heat d) freezing e) universal solvent 11) The most abundant compound in living things is a) oxygen b) carbon c) water d) sugar 12) Colvant bonds ________ electrons a) share b) give/take 13) The basic building block of a nucleic acid is a .... a) monosaccharide b) amino acid c) fatty acids d) glycerol e) nucleotide 14) Which of the following would cause an enzyme to be denatured? a) sugar b) starch c) pH d) peptides 15) How do you calculate the atomic mass number? a) electrons plus electrons b) protons + electrons c) neutrons + electrons d) neutrons + protons e) neutrons + neutrons 16) Nucleic acids contain which of the following elements? a) CHO b) CHON c) CHONP 17) Which is NOT part of the monomer of a nucleic acid? a) phosphate group b) amino acid c) base d) sugar 18) Which macromolecule cannot dissolve in water? a) carbohydrates b) proteins c) lipids d) nucleic acids 19) What is the substance doing the dissolving called? a) solute b) solvent 20) What is a protein that speeds up a chemical reaction called? a) enzyme b) nucleus c) polymer d) element 21) What is a molecule with unequal distribution of charge? a) polar b) covalent c) nucleus d) polymer 22) An enzyme can be both a builder and a breaker of the substrate. a) true b) false 23) Which property of water creates capillary actions? a) high specific heat b) universal solvent c) adhesion d) cohesion 24) Which of the following is NOT a monomer? a) amino acid b) glucose c) nucleotide d) protein 25) Enzymes affect the reactions in living cells by changing the _____ of the reaction. a) speed b) products c) reactants d) solute
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Biochemistry Review
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Rdistefano2
10th Grade
Science
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