Biology: Question Preview (ID: 23039)


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Which of the following are monomers of nucleic acids?
a) amino acids b) fatty acids c) nucleotides d) monosaccharides
Acids have a pH that is
a) between 7 and 10 b) less than 7 c) more than 7 d) equal to 7
What happens to the enzyme catalase when its heated?
a) It speeds up the reaction of breaking down hydrogen peroxide b) It has no effect on catalase c) It slows down the reaction of breaking down hydrogen peroxide d) It becomes denatured and no longer can break down hydrogen peroxide
Which organic molecules are monomers of lipids?
a) amino acids b) fatty acids c) monosaccharides d) nucleotides
Which of the following is false about enzymes?
a) Enzymes can be used over and over to do a chemical reaction b) Enzymes are used up during a single reaction. c) Enzymes speed up chemical reactions by lowering activation energy d) Enzymes are sensitive to pH and temperature changes
All organic molecules contain this element.
a) calcium b) carbon c) nitrogen d) sodium
Which macromolecules contains C, H, and O in a 1:2:1 ratio?
a) carbohydrates b) lipids c) nucleic acids d) proteins
Which type of bond holds hydrogen and oxygen atoms together within a water molecule?
a) covalent b) ionic c) hydrogen d) peptide
Which of the following are monomers of proteins?
a) amino acids b) fatty acids c) nucleotides d) monosaccharides
Which type of bond is found between water molecules?
a) covalent b) ionic c) hydrogen d) peptide
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