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Quiz von Gelöschter Nutzer, aktualisiert more than 1 year ago
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Frage 1
Frage
Which of the following terms best describes this molecule?
Antworten
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Amino Acid
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Monosaccharide
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Monomer
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More than one of these terms is appropriate
Frage 2
Frage
What is the function of this molecule?
Antworten
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It makes up the cell wall of plant cells.
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It is the monomer of proteins.
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It makes up cell membranes.
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It is an energy source for cells.
Frage 3
Frage
Which of the following molecules are made of this type of monomer?
Antworten
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Glycogen
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Cellulose
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Starch
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All of these molecules are made of this type of monomer
Frage 4
Frage
What process is occurring in this image?
Antworten
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Digestion
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Hydrolysis
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Dehydration synthesis
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Catalysis
Frage 5
Frage
In this image, a ________________________ is being produced through the process of _______________________________________.
Antworten
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Disaccharide ... dehydration synthesis
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Disaccharide ... hydrolysis
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Polysaccharide ... dehydration synthesis
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Polysaccharide ... hydrolysis
Frage 6
Frage
What do these molecules have in common?
Antworten
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They are all polysaccharides.
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They all have the same function.
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They all can be digested by humans and other animals.
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All of these statements are true.
Frage 7
Frage
What do all lipids have in common?
Antworten
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They are all found in cell membranes.
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They are all at least partially hydrophobic (nonpolar).
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They all contain three hydrocarbon fatty acid chains.
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All of these statements are true.
Frage 8
Antworten
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A monosaccharide
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A lipid
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An amino acid
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A protein
Frage 9
Frage
What is the difference between 'A' and 'B'?
Antworten
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'A' would be found in a protein, but 'B' would not.
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'A' is a sugar and 'B' is an amino acid.
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'A' would be involved in secondary structure, and 'B' would be involved in tertiary structure.
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'A' would be involved in different tertiary structure interactions than 'B'.
Frage 10
Frage
Which level of protein structure is shown in this image?
Antworten
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Primary
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Secondary
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Tertiary
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Quaternary
Frage 11
Frage
Why does a protein take on the shapes shown in this image?
Antworten
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Because it contains amino acids
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Because nonadjacent R groups interact with each other
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Because the backbone of the protein is polar
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Because it looks fabulous
Frage 12
Frage
Which statement best explains why proteins can serve so many different functions?
Antworten
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They are soluble in water.
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They vary in terms of chain length (i.e., the number of amino acids present).
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They contain sulfur.
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They have different shapes.
Frage 13
Frage
A mystery molecule contains nitrogen. What is the molecule most likely to be?
Antworten
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Cellulose
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A steroid
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A protein
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A trigylceride
Frage 14
Frage
A mystery molecule is added to a test tube of water, and it floats to the top. What is the molecule most likely to be?
Antworten
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A triglyceride
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Starch
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Glucose
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A protein
Frage 15
Frage
A mystery molecule quickly dissolves in water. It has a relatively low molecular weight (as compared to other biological molecules). What is the molecule most likely to be?
Antworten
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A protein
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A steroid
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A monosaccharide
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Starch
Frage 16
Frage
The R group of the amino acid serine is highly polar. The R group of the amino acid leucine is highly nonpolar. Where would you expect to find these amino acids in a globular protein that is normally dissolved in water?
Antworten
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Both serine and leucine would be in the interior of the protein.
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Both serine and leucine would be on the exterior of the protein.
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Leucine would be on the interior, and serine would be on the exterior of the protein.
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Serine would be on the interior, and leucine would be on the exterior of the protein.
Frage 17
Frage
Which of the following is NOT a monomer?
Antworten
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Amino acid
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Monosaccharide
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Steroid
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All of these are monomers
Frage 18
Frage
Figure 1 illustrates a dipeptide, created through dehydration synthesis. At which bond would water need to be added to achieve hydrolysis of the peptide, back to its component amino acids?
Antworten
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Bond A
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Bond B
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Bond C
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Bond D
Frage 19
Frage
The functionality of a protein is determined by its shape when in its native conformation. The native conformation of a protein is determined by the set of amino acids that comprise the protein's sequence. A certain protein consists of 325 amino acids. What could be the result if one of the amino acids in this protein were changed?
Antworten
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The primary structure of the protein would not be altered but its tertiary structure and function would be altered.
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The tertiary structure would be changed but the protein's function would not be affected.
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The primary structure, tertiary structure, and the biological function would be altered.
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There would be no change to the structure or the function of the protein.
Frage 20
Frage
Which statement is true of the process shown in this image?
Antworten
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A polymer is generated.
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Hydrolysis is occurring.
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A peptide bond is broken in the process.
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More than one of these statements is true.
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