NUTRITION-MINDTAP (1 TERM)
15th Edition
ISBN: 9781337907101
Author: Sizer
Publisher: CENGAGE L
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Chapter 6, Problem 3SC
Summary Introduction
Introduction:
Proteins are complex macromolecules that are vital for the several different biological processes in the human body. Proteins are composed of amino acids, as building blocks or monomeric units. An amino acid has a carboxyl, an amino group, and an R group.
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- RNA differs from DNA in that the base _______________ is substituted for _______________. (a) adenine; uracil (b) uracil; thymine (c) guanine; uracil (d) cytosine; guanine (e) guanine; adeninearrow_forwardWhich of the following levels of protein structure may be affected by hydrogen bonding? (a) primary and secondary (b) primary and tertiary (c) secondary, tertiary, and quaternary (d) primary, secondary, and tertiary (e) primary, secondary, tertiary, and quaternaryarrow_forwardBelow is the structure of glycine. Draw a tripeptide composed exclusively of glycine. Label the N-terminus and C-terminus. Draw a box around the peptide bonds.arrow_forward
- The basic building blocks of nucleic acids are: a. phosphate groups b. nucleotides c. ribose sugars d. amino acids e. purine basesarrow_forwardUnlike saturated fatty acids, the tails of unsaturated fatty acids incorporate one or more _______. a. phosphate groups b. glycerols c. double bonds d. single bondsarrow_forwardFigure 3.5 What kind of sugars are these, aldose or ketose?arrow_forward
- The synthetic process by which monomers are covalently linked is (a) hydrolysis (b) isomerization (c) condensation (d) glycosidic linkage (e) ester linkagearrow_forwarda. Can a mutation change a proteins tertiary structure without changing its primary structure? b. Can a mutation change a proteins primary structure without affecting its secondary structure?arrow_forwardLactose is a disaccharide formed by the formation of a bond between glucose and glycosidic; lactose glycosidic; galactose hydrogen; sucrose hydrogen; fructosearrow_forward
- The helix and the pleated sheet are part of which protein structure? primary secondary tertiary quaternaryarrow_forwardUsing Figures 8.7 and 8.9 as a guide, draw a dinucleotide composed of C and A. Next to this, draw the complementary dinucleotide in an antiparallel fashion. Connect the dinucleotides with the appropriate hydrogen bonds. FIGURE 8.9 The two polynucleotide chains in DNA run in opposite directions. The left strand runs 5 to 3, and the right strand runs 3 to 5. The base sequences in each strand are complementary. An A in one strand pairs with a T in the other strand, and a C in one strand is paired with a G in the opposite strand. FIGURE 8.7 Nucleotides can be joined together to form chains caled polynucleotides. Polynucleotides are polar molecules with a 5 end (at the phosphate group) and a 3 end (at the sugar group). An RNA polynucleotide is shown at the left, and a DNA polynucleotide is shown at the right.arrow_forwardMad cow disease is an infectious disease where one misfolded protein causes all other copies of the protein to being misfolding. This is an example of a disease impacting structure. primary secondary tertiary quaternaryarrow_forward
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