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BIO 100--Quiz 4

QuestionAnswer
Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified? as a disaccharide
Which of the following is true of both starch and cellulose? T or F They are both polymers of glucose. True
Which of the following is true of both starch and cellulose? T or F They are geometric isomers of each other. False
Which of the following is true of both starch and cellulose? T or F They can both be digested by most organisms. False
Which of the following is true of both starch and cellulose? T or F They are both used for energy storage in plants. False
Which of the following is true of both starch and cellulose? T or F They both form a helix structure. False
Humans can digest starch but not cellulose because... humans have enzymes that can hydrolyze the alpha (α) glycosidic linkages of starch but not the beta (β) glycosidic linkages of cellulose.
Which of the following statements about SATURATED FATS is FALSE? They have multiple double bonds in the carbon chains of their fatty acids.
What is a triglyceride? a lipid made with three fatty acids and glycerol
Large organic molecules are usually assembled by polymerization of a few kinds of simple subunits. Which of the following is an exception to this statement? a steroid cellulose DNA an enzyme a contractile protein a steroid
All of the following contain amino acids EXCEPT... hemoglobin. cholesterol. antibodies. enzymes. insulin. cholesterol.
Which bonds are created during the formation of the primary structure of a protein? peptide bonds
The alpha (α) helix and the beta (β) sheet are both common polypeptide forms found in which level of protein structure? secondary
The tertiary structure of a protein is the... unique three-dimensional shape of the fully folded polypeptide
Which of the following descriptions best fits the class of molecules known as nucleotides? a nitrogenous base, a phosphate group, and a pentose sugar
Which of the following are nitrogenous bases of the purine type? guanine and adenin
Which of the following statements BEST summarizes the differences between DNA and RNA? DNA nucleotides contain a different sugar than RNA nucleotides.
Which of the following store and transmit hereditary information from one generation to the next? nucleic acids
The element nitrogen is present in all of the following, EXCEPT... proteins. nucleic acids. amino acids. DNA. monosaccharides. monosaccharides.
A nucleotide is a polymer. T or F False
A starch is a polymer. T or F True
cellulose is a polymer. T or F True
chitin is a polymer. T or F True
DNA is a polymer. T or F True
The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that... plant cells contain a large vacuole that reduces the volume of the cytoplasm.
Which of the following is a major cause of the size limits for certain types of cells? The need for a surface area of sufficient area to allow the cell's function.
Organelles other than the nucleus that contain DNA include.. chloroplasts and mitochondria.
The chemical reactions involved in respiration are virtually identical between prokaryotic and eukaryotic cells. Where are the corresponding reactions likely to occur in prokaryotic respiration? on the inner plasma membrane
A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondria. It could be a cell from... a plant or an animal.
All the following can be found within a eukaryotic OR a prokaryotic cell, EXCEPT________. chloroplasts ribosomes lipid membranes DNA protein chloroplasts
Which of the following types of cells utilize deoxyribonucleic acid (DNA) as their genetic material but do not have their DNA encased within a nuclear envelope? archaea
 

 



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