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What is Life? A Guide to Biology 3e & LaunchPad for Phelan's What is Life? (Six Month Access) 3e
3rd Edition
ISBN: 9781319028503
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 2, Problem 14MC
Summary Introduction
Introduction:
Proteins are often referred to as the building blocks of the body. They are macromolecules that are involved in almost all functions in the body.
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Students have asked these similar questions
Which amino acid is NOT one that may be targeted for phosphorylation to modulate the activity of an enzyme?
A)
Ser
B)
Thr
C)
Tyr
D)
His
E)
Ala
Biotin is required for:
a) Fatty acid activation
b) Fatty acid biosynthesis
c) Both a and b
d) Neither a or b
which of the following amino acids is considered an essential amino acid?
a) serine
b) alanine
c) valine
d) tyrosine
Chapter 2 Solutions
What is Life? A Guide to Biology 3e & LaunchPad for Phelan's What is Life? (Six Month Access) 3e
Ch. 2 - Prob. 1SACh. 2 - Prob. 2SACh. 2 - Prob. 3SACh. 2 - Prob. 4SACh. 2 - Prob. 5SACh. 2 - Prob. 6SACh. 2 - Prob. 7SACh. 2 - Prob. 8SACh. 2 - Prob. 9SACh. 2 - Prob. 10SA
Ch. 2 - Prob. 11SACh. 2 - Prob. 12SACh. 2 - Prob. 13SACh. 2 - Prob. 14SACh. 2 - Prob. 15SACh. 2 - Prob. 16SACh. 2 - Prob. 17SACh. 2 - Prob. 18SACh. 2 - Prob. 19SACh. 2 - Prob. 20SACh. 2 - Prob. 1MCCh. 2 - Prob. 2MCCh. 2 - Prob. 3MCCh. 2 - Prob. 4MCCh. 2 - Prob. 5MCCh. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - Prob. 10MCCh. 2 - Prob. 11MCCh. 2 - Prob. 12MCCh. 2 - Prob. 13MCCh. 2 - Prob. 14MCCh. 2 - Prob. 15MCCh. 2 - Prob. 16MCCh. 2 - Prob. 17MCCh. 2 - Prob. 18MCCh. 2 - Prob. 19MC
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- Which of the following is a prosthetic group that may be found in the active site of an enzyme? a) zinc ion b) glycine amino acid c) hydrogen ion d) glucose-1-phosphate e) acetyl grouparrow_forwardWhich of the following correctly describes the 3 amino acids that are most likely to undergo phosphorylation? a) Serine, threonine, tyrosine b) Cysteine, tryptophan, tyrosine c) Serine, tyrosine, cysteine d) Tyrosine, asparagine, serinearrow_forwardWhich of these amino acids are not optically active?a) Cysteineb) Lysinec) Arginined) Glycinearrow_forward
- Which of the following is abundantly found in collagen? a) Tryptophan b) Alanine c) Glycine d) Serinearrow_forwardIn eukaryotes, fatty acids are stored as triglycerides in cells that have: A) Golgi that store glucose, B) too little ATP, C) lysosomes that make glycogen, D) liposomes that contain an enzyme that performs dehydration synthesis to form triglycerides, E) mRNA that makes amino acids into fat.arrow_forwardDefine the following nutritional terms.a) glycolytic-b) glucogenic-c) glycogenic-d) glycogenolytic-e) lipolytic-f) lipogenic-g) proteogenic-h) proteolytic-arrow_forward
- What best describes the relationship between essential amino acids in humans and the number of steps in the amino acid synthesis pathway? a)Generally, the more steps there are in the synthesis pathway, the more likely the amino acid is to be essential. b)There is no relationship between number of steps in the synthesis pathway and whether an amino acid is essential or not. c)All amino acid synthesis pathways are the same length, so all amino acids are equally likely to be essential. d)Generally, the fewer steps there are in the synthesis pathway, the more likely the amino acid is to be essential.arrow_forwardWhich of the following is an appropriate definition of zymogen? a) An inactive enzyme precursor b) A digestive enzyme c) A protease d) All of the abovearrow_forwardWhich of the following gives rise to methionine, threonine, and lysine? a) Glutamate b) Serine c) Pyruvate d) Aspartatearrow_forward
- Trypsin catalyzes the cleavage of: a) all peptide bonds b) peptide bonds after Lys or Arg c) peptide bonds before Lys or Arg d) peptide bonds after Met Papain catalyzes the cleavage of: a) all peptide bonds b) peptide bonds after Lys or Arg c) peptide bonds before Lys or Arg d) peptide bonds after Met The molecule which binds to an enzyme and undergoes chemical reaction is called a: a) substrate b) cofactor c) coenzyme d) prosthetic group A metal ion which binds to an enzyme and assists it in catalysis is called: a) substrate b) cofactor c) coenzyme d) prosthetic group Proteases are a subclass of which larger class? A) isomerases b) oxidoreductases c) lyases d) hydrolases Transferases which catalyze the transfer of a phosphate group are called: a) lyases b) ligases c) kinases d) phosphatasesarrow_forwardName the substrates for the following enzymes: a) trypsinb) amylasec) pepsind) lipasearrow_forwardWhich amino acid fits this description: the body uses this amino acid for mineral absorption c metabolism, and detoxification? A) methionine B) tryptophan C) Lysine D) Threoninearrow_forward
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