Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 3, Problem 18RQ
A
- ribose, uracil, and a phosphate group
- deoxyribose, uracil, and a phosphate group
- deoxyribose, thymine, and a phosphate group
- ribose, thymine, and a phosphate group
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A nucleotide of DNA may contain ________.a. ribose, uracil, and a phosphate groupb. deoxyribose, uracil, and a phosphate groupc. deoxyribose, thymine, and a phosphate groupd. ribose, thymine, and a phosphate group
A nucleotide is composed of which substances?
sugar, base, and enzyme
amino acids and fatty acids
phosphate group, sugar, and base
enzyme, sugar, and phosphate group
Which of the following are nitrogen bases that can be contained in DNA nucleotides? Select all that apply.
a
guanine
b
uracil
c
cytosine
d
thymine
Chapter 3 Solutions
Biology 2e
Ch. 3 - Figure 3.5 What kind of sugars are these, aldose...Ch. 3 - Figure 3.23 Which categories of amino acid would...Ch. 3 - Figure 3.33 A mutation occurs, and cytosine is...Ch. 3 - Dehydration synthesis leads to formation of...Ch. 3 - During the breakdown of polymers, which of the...Ch. 3 - The following chemical reactants produce the ester...Ch. 3 - An example of a monosaccharide is fructose glucose...Ch. 3 - Cellulose and starch are examples of:...Ch. 3 - Plant cell walls contain which of the following in...Ch. 3 - Lactose is a disaccharide formed by the formation...
Ch. 3 - Which of the following is not an extracellular...Ch. 3 - Saturated fats have all of the following...Ch. 3 - Phospholipids are important components of...Ch. 3 - Cholesterol is an integral part of plasma...Ch. 3 - The monomers that make up proteins are called...Ch. 3 - The helix and the pleated sheet are part of...Ch. 3 - Mad cow disease is an infectious disease where one...Ch. 3 - A nucleotide of DNA may contain. ribose, uracil,...Ch. 3 - The building blocks of nucleic acids are ____. a....Ch. 3 - How does the double helix structure of DNA support...Ch. 3 - Why are biological macromolecules considered...Ch. 3 - What role do electrons play in dehydration...Ch. 3 - Amino acids have the generic structure seen below,...Ch. 3 - Describe the similarities and differences between...Ch. 3 - Why is it impossible for humans to digest food...Ch. 3 - Draw the ketose and aldose forms of a...Ch. 3 - Explain at least three functions that lipids serve...Ch. 3 - Why have trans fats been banned from some...Ch. 3 - Why are fatty acids better than glycogen for...Ch. 3 - Part of cortisol’s role in the body involves...Ch. 3 - Explain what happens if even one amino acid is...Ch. 3 - Describe the differences in the four protein...Ch. 3 - Aquaporins are proteins embedded in the plasma...Ch. 3 - What are the structural differences between RNA...Ch. 3 - What are the four types of RNA and how do they...
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- The basic building blocks of nucleic acids are: a. phosphate groups b. nucleotides c. ribose sugars d. amino acids e. purine basesarrow_forwardWhich of the following is a class of molecules that encompasses all of the other molecules listed? a. triglycerides b. fatty acids c. waxes d. steroids e. lipids f. phospholipidsarrow_forwardThe monomers that make up proteins are called_____. a. nucleotides b. disaccharides c. amino acids d. chaperonesarrow_forward
- Which 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_forwardNitrogenous bases of RNA are A. uracil and adenine B. thymine and uracil C. uracil, adenine, guanine and cytosine D. thymine, adenine, guanine and cytosinearrow_forwardA nucleotide is composed of a sugar, nitrogenous base, and phosphate sugar, nitrogenous base, and guanine sugar, nitrogenous base, and adenine sugar, nitrogenous base, and thymine sugar, nitrogenous base, and uracilarrow_forward
- Which of the following is true about the structure of nucleotides? A. Purine nucleotides cannot base pair with pyrimidine nucleotides. B. Pyrimidine bases are larger than purine bases. C. Purine and pyrimidine bases are found in DNA and RNA. D. Thymine base is found in DNA and RNA.arrow_forwardWhich of the following is a DNA nucleotide? a phosphate group, guanine and deoxyribose a diphosphate group and uridine thymine and deoxyribose a phosphate group, adenine and ribosearrow_forwardIn protein synthesis, adenine pairs with ________________________, and guanine pairs with ________________________. Multiple Choice uracil; cytosine adenine; guanine None of the answer choices are correct. thymine; cytosine thymine; uracilarrow_forward
- The nitrogenous bases present in RNA are the same as those present in DNA except that: Adenine replaces cytosine Adenine replaces thymine Uracil replaces adenine uracil replaces thymine cytosine replaces guaninearrow_forwardThe essential components of any nucleotide are: Ribose, adenine, triphosphate Deoxyribose, phosphate a sugar, a nitrogenous base, a phosphate b-2’-deoxyribofuranose, purine, inorganic phosphate adenosine and guaninearrow_forwardWhich of the following is not a nitrogenous base? Group of answer choices A. guanine B. uracil C. deoxyribose D. cytosine E. thyminearrow_forward
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