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NWHSU Biochem I Q1

NWHSU Biochem 1 Quiz 1 Clicker Q's and similar Q's NOTMASH

QuestionAnswer
The configuration at the α-carbon of the vast majority of naturally occurring amino acids is ___. L (Levo)
The configuration at the α-carbon of the vast majority of naturally occurring carbohydrates is ___. D (Dextro)
Threonine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged polar, uncharged
What are the Nonpolar Amino Acids? Glycine, Alanine, Proline, Valine, Leucine, Isoleucine, Methionine
Glycine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
Alanine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
Proline is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
Valine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
Leucine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
Isoleucine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
Methionine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged nonpolar
What are the Polar, uncharged Amino Acids? Serine, Threonine, Cysteine, Asparagine, Glutamine
Serine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged polar, uncharged
Cysteine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged polar, uncharged
Asparagine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged polar, uncharged
Glutamine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged polar, uncharged
What are the Aromatic Amino Acids? Phenylalanine, Tyrosine, Tryptophan
Phenylalanine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged aromatic
Tyrosine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged aromatic
Tryptophan is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged aromatic
What are the polar, positively charged amino acids? Lysine, Arginine, Histidine
Lysine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged positively charged
Arginine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged positively charged
Histidine is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged positively charged
What are the polar, negatively charged amino acids? Aspartate, Glutamate
Aspartate is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged negatively charged
Glutamate is a(n)___amino acid 1.nonpolar, aliphatic 2.polar, uncharged 3.aromatic 4.positively charged 5.negatively charged negatively charged
… has a pKR that is close to 7 and hence is commonly found at the active site of enzymes. 1.Proline 2.Cysteine 3.Glycine 4.Lysine 5.Histidine Histidine
… has a pKR that is less than 7 and hence is considered an acidic amino acid(s). Aspartate, Glutamate
… has a pKR that is greater than 7 and hence is considered an basic or alkaline amino acid(s). Lysine, Arginine, Histidine
Hydrophobic interaction occurs between … R-groups. 1.Nonpolar, aliphatic 2.Polar, uncharged 3.Aromatic 4.Positively charged 5.Negatively charged Nonpolar
What are the essential amino acids (cannot be synthesized in human body)? Valine, Leucine, Isoleucine, Methionine, Threonine, Cysteine, Phenylalanine, Tyrosine, Tryptophan (all three aromatics), Lysine, Arginine, Histidine (all three positively charged)
What is the only non-chiral amino acid? Glycine
What are the conditionally essential amino acids? Cysteine, Tyrosine, Arginine
The only uncommon amino acid found in proteins that is modified pre-translation is ________. 1.selenocysteine 2.hydroxyproline 3.hydroxylysine 4.carboxyglutamate selenocysteine
Carnitine (an uncommon amino acid) 1.transports fatty acids into the mitochondria 2. is an intermediate of bile biochemistry 3.is an intermediate of the urea cycle 4.stores phosphate in muscle tissue transports fatty acids into the mitochondria
Citrulline and Ornithine(an uncommon amino acid) 1.transports fatty acids into the mitochondria 2. is an intermediate of bile biochemistry 3.is an intermediate of the urea cycle 4.stores phosphate in muscle tissue is an intermediate of the urea cycle
Taurine (an uncommon amino acid) 1.transports fatty acids into the mitochondria 2. is an intermediate of bile biochemistry 3.is an intermediate of the urea cycle 4.stores phosphate in muscle tissue is an intermediate of bile biochemistry
Creatine (an uncommon amino acid) 1.transports fatty acids into the mitochondria 2. is an intermediate of bile biochemistry 3.is an intermediate of the urea cycle 4.stores phosphate in muscle tissue stores phosphate in muscle tissue
Choose the correct answer. 1.Every amide bond is a peptide bond. 2.Every peptide bond is an amide bond. every peptide bond is an amide bond
In biochemical reactions enzymes use Condensation (performed by ribosomes)to ___water, Hydrolysis (performed by proteases)to ___water remove, add
What was the first protein synthesized in the lab (outside human body)? insulin
What amino acid is important for the stability of a protein's 3-D structure? Cysteine (because if there is two they provide a disulfide "bridge" or bond)
What is the PI formula for a neutral amino acid? PI = (PK1 + PK2)/2
What is the PI formula for an acidic amino acid? PI = (PK1 + PKR)/2
What is the PI formula for a basic amino acid? PI = (PKR + PK2)/2
Created by: AnatomyMash