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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The smallest unit to enter into a chemical reaction is a(n) __________.
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(a) atom
(b) molecule (c) compound (d) substance |
(a) atom
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The atomic weight of an atom is determined by the number of ______________.
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(a) protons
(b) neutrons (c) electrons (d) protons and neutrons |
(d) protons and neutrons
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The inner shall of any atom can contain up to ________ electrons.
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(a) two
(b) four (c) six (d) eight |
(a) two
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Isotopes of an element differ due to the number of _________.
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(a) protons
(b) neutrons (c) electrons (d) both protons and electrons |
(b) neutrons
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The formation of __________ bonds involves the transfer of electrons from one atom to another nearby atom.
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(a) covalent
(b) ionic (c) hydrogen (d) all of the above |
(b) ionic
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The biologically important properties of water are due to what attributes of water?
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(a) polarity
(b) hydrogen bonding (c) its tendency to freeze solid (d) both polarity and hydrogen bonding |
(d) both polarity and hydrogen bonding
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Acids dissociate in water and release _________.
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(a) hydroxide ions
(b) hydrogen ions (c) chloride ions (d) hydroxide ions and hydrogen ions |
(b) hydrogen ions
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Sugars with three to seven carbon atoms are called:
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(a) monosaccharides
(b) disaccharides (c) trisaccharides (d) polysaccharides |
(a) monosaccharides
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A polysaccharide, such as starch, glycogen or cellulose, is a carbohydrate that contains a large number of __________.
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(a) peptide units
(b) glucose units (c) amino acids (d) fatty acids |
(b) glucose units
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A typical fat molecule consists of ____________.
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(a) glycerol
(b) fatty acids (c) glycogen (d) glycerol and fatty acids |
(d) glycerol and fatty acids
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Organic compounds that speed up chemical reactions are called ________.
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(a) carbohydrates
(b) lipids (c) enzymes (d) nucleotides |
(c) enzymes
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The subunits of proteins are the ____________.
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(a) amines
(b) peptides (c) polypeptides (d) amino acids |
(d) amino acids
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Amino acids differ from one another by their ___________.
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(a) amino groups
(b) acid groups (c) peptide bonds (d) R groups |
(d) R groups
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The covalent bond that joins two amino acids in a protein is called a(n) __________.
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(a) hydrogen bond
(b) peptide bond (c) carbohydrate bond (d) alpha linkage bond |
(b) peptide bond
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The primary structure of a protein refers to its ____________.
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(a) three-dimensional shape
(b) order of amino acids (c) order of nucleic acids (d) orientation of the amino acids |
(b) order of amino acids
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Each nucleotide contains a _____________.
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(a) phosphate group
(b) sugar (c) nitrogenous base (d) all of these are correct |
(d) all of these are correct
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ATP, a special type of nucleotide, functions as __________.
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(a) a buffer
(b) an enzyme (c) the energy carrier in cells (d) hereditary material in the cell |
(c) the energy carrier in cells
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When an ATP molecule is used to supply energy:
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(a) the terminal phosphate bond is broken
(b) a phosphate bond is removed (c) ADP is produced (d) All of these are correct |
(d) All of these are correct
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A single RNA molecule contains many ________.
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(a) genes
(b) nucleotides (c) proteins (d) Both a and b are correct |
(b) nucleotides
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Which of the following is not a pest management strategy that would decrease reliance on pesticides?
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(a) usage of natural enemies
(b) disruption of pest production (c) plant the same crop species repeatedly (d) plant pest resistant crops |
(c) plant the same crop species repeatedly
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