Straighterline Anatomy and Physiology 1 BIO201
Topic 2: Chemistry for Anatomy and Physiology
Students Quiz 2023
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BIO201_MH_V3
Topic 2: Chemistry for Anatomy and Physiology Students
Started on Wednesday, June 7, 2023, 11:30 AM
State Finished
Completed on Wednesday, June 7, 2023, 11:51 AM
Time taken 20 mins 59 secs
Grade 33.25 out of 35.00 (95%)
Question 1
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Which of the following pairs is mismatched?Select one:
a. synthesis reaction - two reactants combine to form a larger product
b. decomposition reaction - large reactant broken into smaller products
c. oxidation - gain of electrons
d. dehydration reaction - water is a product of the reaction
e. hydrolysis - water is used in decomposition reaction
Question 2
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Enzymes are proteins that increase the rate of chemical reactions by
Select one:
a. increasing the activation energy of the reaction.
b. decreasing the activation energy of the reaction.
c. adjusting the temperature of the reaction.
d. increasing the concentration of the reactants.
Question 3
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A cation is
Select one:
a. a combination of atoms held together by chemical bonds.
b. a positively charged ion.
c. a negatively charged ion.
d. a molecule that conducts electricity when placed in solution.
e. an alteration in the three-dimensional structure of a protein.Question 4
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Electrons
Select one:
a. comprise the majority of the mass of an atom.
b. are located in the nucleus of an atom.
c. have a positive charge of one.
d. are the subatomic particles most involved in bonding behavior of atoms.
e. do not participate in the bonding of atoms.
Question 5
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A neutral atom contains
Select one:
a. more protons than electrons.
b. more electrons than protons.
c. the same number of electrons and protons.
d. only neutrons.
e. None of these choices is correct.
Question 6
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Intermolecular forces are weak electrostatic attractions that exist between
Select one:
a. two molecules
b. a proton and an electron
c. two protons
Question 7
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Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is
between a hydrogen atom of one molecule and a partially _________ charged atom of another.
Select one:
a. polar covalent; negatively
b. polar covalent; positively
c. nonpolar covalent; positively
d. nonpolar covalent; negatively
e. ionic; positively
Question 8
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An atom of chlorine has 17 protons and 18 neutrons. Which of the following statements is true?
Select one:a. Chlorine atoms have 18 electrons.
b. Chlorine has a mass number of 35.
c. Chlorine has an atomic number of 18.
d. Chlorine has 35 electrons.
e. Chlorine has an atomic number of 35.
Question 9
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The three forms of matter are:
Select one:
a. air, water, and solids.
b. solids, liquids, and gases.
c. blood, bone, and air.
d. vapor, water, and solid.
Question 10
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The smallest particle of an element that still exhibits the chemical characteristics of that element is
a(n)
Select one:
a. electron.
b. atom.
c. chemical bond.
d. orbital.
e. proton.Question 11
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Which of the following lists the components of a nucleotide?
Select one:
a. phosphate—lipid—organic base
b. monosaccharide—organic base—sucrose
c. phosphate—monosaccharide—organic base
d. phosphate—sucrose—amino acid
e. monosaccharide—amino acid—phosphate
Question 12
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Which function of proteins is NOT correctly matched with the example?
Select one:
a. transport – hemoglobin
b. structure – collagen and keratin
c. regulation – enzymes and hormones
d. protection – packing around organs and glands
e. contraction – actin and myosin in muscles
Question 13
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Glucose is the
Select one:
a. storage carbohydrate in animals.
b. storage carbohydrate in plants.
c. nondigestible plant polysaccharide.
d. major nutrient for most body cells.
e. sugar found in RNA.
Question 14
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Which of the following lists includes only monosaccharides that are isomers of one another?
Select one:
a. glycogen, glucose, sucrose
b. starch, glycogen, cellulose
c. ribose, glycogen, glucose
d. glucose, fructose, galactose
e. deoxyribose, glycogen, starch
Question 15
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Which of the following organic groups does an enzyme belong to?Select one:
a. carbohydrate
b. protein
c. lipid
d. nucleic acid
e. vitamin
Question 16
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Phospholipids are important components of the plasma membrane. What does "E" represent on the
diagram?
Select one:
a. phosphorus
b. oxygen
c. nitrogen
d. polar (hydrophilic) region
e. nonpolar (hydrophobic) region
Question 17
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Which of the following is a component of a nucleotide?
Select one:
a. adenine--a nitrogen base
b. glucose--a monosaccharide
c. cholesterol--a steroid
d. calcium ions
e. ATP
Question 18
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What protein structure results from folding or coiling of a polypeptide chain caused by hydrogen
bonds between amino acids?
Select one:
a. quaternary structure
b. tertiary structure
c. secondary structure
d. primary structure
e. peptide structure
Question 19
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What particle is formed when an acid loses a proton (H+)?
Select one:
a. buffer
b. conjugate acid
c. salt
d. conjugate base
Question 20
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ATP
Select one:
a. can be synthesized from ADP.
b. stores and releases energy in the cell.
c. is associated with a reversible reaction.
d. is associated with anabolism and catabolism.
e. All of these choices are correct. [Show Less]