Biochemistry

Which of the following cannot be found in a nucleotide of RNA?

Which of the following cannot be found in a nucleotide of RNA?

Which of the following cannot be found in a nucleotide of RNA?

▸ phosphate

▸ deoxyribose

▸ purine

▸ ribose

▸ pyrimidine

Diamondlove   47   1 Reply

Guest

The optimum temperature for most biological enzymes is ________.

The optimum temperature for most biological enzymes is ________.

The optimum temperature for most biological enzymes is ________.

hannah.kasper   38   1 Reply

brina10

The names of many enzymes can be recognized by the suffix ________.

The names of many enzymes can be recognized by the suffix ________.

[html]The names of many enzymes can be recognized by the suffix ________.

▸ ase

▸ ate

▸ ite

▸

almask04   82   1 Reply

decibul

Acids and bases denature a protein by disrupting ________.

Acids and bases denature a protein by disrupting ________.

[html]Acids and bases denature a protein by disrupting ________.

▸ amide bonds and alkene bonds

▸ salt bridges and hydrogen bonds

▸ salt bridges and hydrophobic interactions

▸ peptide bonds and salt bridges

▸ hydrophobic interactions and peptide

yashreds   77   1 Reply

plum6

What kinds of interactions are not part of tertiary protein structure?

What kinds of interactions are not part of tertiary protein structure?

What kinds of interactions are not part of tertiary protein structure?

▸ peptide bonds

▸ disulfide bonds

▸ hydrophilic interactions

▸ hydrophobic interactions

▸ salt bridges

Pikachau   57   1 Reply

DCRaven

Which of the following is a secondary protein structure?

Which of the following is a secondary protein structure?

Which of the following is a secondary protein structure?

▸ α-helix

▸ disulfide bond

▸ Ser-Met-Ala-Gly-Ile

▸ salt bridges

▸ hydrophobic interactions

brodylaw   55   1 Reply

Justin90630

The attractive forces that are important in the secondary structure of a protein are ________.

The attractive forces that are important in the secondary structure of a protein are ________.

The attractive forces that are important in the secondary structure of a protein are ________.

▸ hydrogen bonds

▸ peptide bonds

▸ hydrophobic interactions

▸ salt bridges

▸ disulfide bonds

psantiago   66   1 Reply

sleinhi

In the peptide GLVIW, the C-terminus is ________.

In the peptide GLVIW, the C-terminus is ________.

In the peptide GLVIW, the C-terminus is ________.

▸ serotonin

▸ alanine

▸ glycine

▸ glycerine

▸ tryptophan

civi   63   1 Reply

Andylai01

In the peptide Ala-Try-Gly-Phe, the N-terminus is ________.

In the peptide Ala-Try-Gly-Phe, the N-terminus is ________.

In the peptide Ala-Try-Gly-Phe, the N-terminus is ________.

▸ tryptophan

▸ phenylalanine

▸ aspartate

▸ alanine

▸ glycine

kenzienoelle16   88   1 Reply

Guest

In the peptide STFNA, the N-terminus is ________.

In the peptide STFNA, the N-terminus is ________.

In the peptide STFNA, the N-terminus is ________.

▸ aspartate

▸ phenylalanine

▸ alanine

▸ serine

▸ tryptophan

cmperez1988   54   1 Reply

christmasnugget

The one letter abbreviation for the amino acid tyrosine is ________.

The one letter abbreviation for the amino acid tyrosine is ________.

The one letter abbreviation for the amino acid tyrosine is ________.

▸ T

▸ R

▸ W

▸ Y

▸ P

gaytor   44   1 Reply

landonsmom

Which of the following would be most likely to be deficient in at least one essential amino acid?

Which of the following would be most likely to be deficient in at least one essential amino acid?

Which of the following would be most likely to be deficient in at least one essential amino acid?

▸ milk

▸ beans

▸ ham

▸ eggs

▸ steak

hlturner75   64   1 Reply

Calista

The interior of a lipid bilayer is the hydrophilic region.

The interior of a lipid bilayer is the hydrophilic region.

The interior of a lipid bilayer is the hydrophilic region.

▸ true

▸ false

garrettl24   54   1 Reply

carston

A triacylglycerol that is solid at room temperature is called a(n) ________.

A triacylglycerol that is solid at room temperature is called a(n) ________.

A triacylglycerol that is solid at room temperature is called a(n) ________.

▸ oil

▸ wax

▸ fat

▸ lecithin

▸ cephalin

jcarpp   55   1 Reply

SarahJoseph

The acid hydolysis of an amide gives an amine and a carboxylic acid.

The acid hydolysis of an amide gives an amine and a carboxylic acid.

The acid hydolysis of an amide gives an amine and a carboxylic acid.

▸ true

▸ false

Afsa   70   1 Reply

sleinhi

Aspirin that has a smell of vinegar has broken down by hydrolysis.

Aspirin that has a smell of vinegar has broken down by hydrolysis.

Aspirin that has a smell of vinegar has broken down by hydrolysis.

▸ true

▸ false

sjeanlou423   54   1 Reply

kc123

Butyl alcohol is one of the reactants used to make methyl butyrate.

Butyl alcohol is one of the reactants used to make methyl butyrate.

Butyl alcohol is one of the reactants used to make methyl butyrate.

▸ true

▸ false

ninsta2700   42   1 Reply

wanjigaga

Most of the carboxylic acid in an aqueous solution is ionized.

Most of the carboxylic acid in an aqueous solution is ionized.

Most of the carboxylic acid in an aqueous solution is ionized.

▸ true

▸ false

123isme   79   1 Reply

deathwing

The major acidic component of vinegar is formic acid.

The major acidic component of vinegar is formic acid.

The major acidic component of vinegar is formic acid.

▸ true

▸ false

tum2015   51   1 Reply

kater28

To which chemical class does phenobarbital belong?

To which chemical class does phenobarbital belong?

To which chemical class does phenobarbital belong?

▸ amine

▸ amide

▸ ester

▸ ether

▸ alkane

9bleacher   44   1 Reply

kater28

With the correct choice of acid, acid hydrolysis of acetamide could produce ________.

With the correct choice of acid, acid hydrolysis of acetamide could produce ________.

[html]With the correct choice of acid, acid hydrolysis of acetamide could produce ________.

▸ acetaldehyde and ammonium hydroxide

▸ acetic acid and ammonium chloride

▸ formic acid and ethylamine

▸ acetic acid and methylamine

▸ ethanol and ammoni

jcarpp   48   1 Reply

festuca96

A deficiency of which amine is responsible for the signs and symptoms of Parkinson's disease?

A deficiency of which amine is responsible for the signs and symptoms of Parkinson's disease?

A deficiency of which amine is responsible for the signs and symptoms of Parkinson's disease?

▸ diphenhydramine

▸ methedrine

▸ epinephrine

▸ histamine

▸ dopamine

Birdy   49   1 Reply

DocD216

How many alkyl substituents does N-ethyl-N-methylaniline have?

How many alkyl substituents does N-ethyl-N-methylaniline have?

How many alkyl substituents does N-ethyl-N-methylaniline have?

▸ one

▸ two

▸ three

▸ eight

▸ none

Jesse21   68   1 Reply

sleinhi

What functional group is always found in alkaloids (such as caffeine, nicotine, and digitalis)?

What functional group is always found in alkaloids (such as caffeine, nicotine, and digitalis)?

What functional group is always found in alkaloids (such as caffeine, nicotine, and digitalis)?

▸ ether

▸ acid

▸ amine

▸ ester

▸ amide

lolerdog1   46   1 Reply

jagpreet

Which of the following represents the complete neutralization of dimethylamine?

Which of the following represents the complete neutralization of dimethylamine?

[html]Which of the following represents the complete neutralization of dimethylamine?

▸ CH3—NH + HCl → CH3—NH2 + CH3Cl
  |

jag   116   1 Reply

Gorgio_De

What is the product of the reaction of an alcohol and a carboxylic acid when heated together under ...

What is the product of the reaction of an alcohol and a carboxylic acid when heated together under ...

What is the product of the reaction of an alcohol and a carboxylic acid when heated together under acidic conditions?

▸ an aldehyde

▸ an ester

▸ a salt

▸ an ether

▸ a ketone

yashreds   60   1 Reply

Transonic

Many of the fragrances of flowers and the flavors of fruits are due to ________.

Many of the fragrances of flowers and the flavors of fruits are due to ________.

Many of the fragrances of flowers and the flavors of fruits are due to ________.

▸ amides

▸ esters

▸ amines

▸ ethers

▸ carboxylic acids

treyjames1   59   1 Reply

Slambo

Which of these functional groups is likely to give a sour taste to a food?

Which of these functional groups is likely to give a sour taste to a food?

Which of these functional groups is likely to give a sour taste to a food?

▸ ketone

▸ ester

▸ carboxylic acid

▸ ether

▸ thiol

mrzbrooks   55   1 Reply

desaividya

Which carboxylic acid in the list below is an aromatic carboxylic acid?

Which carboxylic acid in the list below is an aromatic carboxylic acid?

Which carboxylic acid in the list below is an aromatic carboxylic acid?

▸ butyric acid

▸ acetic acid

▸ benzoic acid

▸ benzene

▸ citric acid

Jeff Stein   53   1 Reply

redpink81

The product of reduction of mannose is mannoic acid.

The product of reduction of mannose is mannoic acid.

The product of reduction of mannose is mannoic acid.

▸ true

▸ false

yayyay   51   1 Reply

mambah4

Stereoisomers are not structural isomers.

Stereoisomers are not structural isomers.

Stereoisomers are not structural isomers.

▸ true

▸ false

baschese   52   1 Reply

Hammadsyed14

In a disaccharide, two monosaccharides are joined by what kind of bond?

In a disaccharide, two monosaccharides are joined by what kind of bond?

In a disaccharide, two monosaccharides are joined by what kind of bond?

▸ alcohol

▸ glycosidic

▸ double

▸ anomeric

▸ rotational

lolooe   69   1 Reply

econ2200

Which of the following compounds is chiral?

Which of the following compounds is chiral?

[html]Which of the following compounds is chiral?

▸  Br
 ∣
H - C - OH

riirkirir   41   1 Reply

asd454512

The breakdown of glucose to chemical energy for the cells to do work is an example of ________.

The breakdown of glucose to chemical energy for the cells to do work is an example of ________.

The breakdown of glucose to chemical energy for the cells to do work is an example of ________.

▸ mutarotation

▸ reduction

▸ oxidation

▸ anabolism

▸ respiration

garrettl24   51   1 Reply

Shassta22

A monosaccharide that contains 6 carbon atoms, one of which is in an aldehyde group, is classified ...

A monosaccharide that contains 6 carbon atoms, one of which is in an aldehyde group, is classified ...

A monosaccharide that contains 6 carbon atoms, one of which is in an aldehyde group, is classified as a(n) ________.

▸ aldotetrose

▸ aldopentose

▸ ketotetrose

▸ ketopentose

▸ aldohexose

karlec   52   1 Reply

julymontalvo

Which group of carbohydrates cannot be hydrolyzed to give simpler carbohydrates?

Which group of carbohydrates cannot be hydrolyzed to give simpler carbohydrates?

Which group of carbohydrates cannot be hydrolyzed to give simpler carbohydrates?

▸ disaccharides

▸ tetrasaccharides

▸ polysaccharides

▸ trisaccharides

▸ monosaccharides

petergreeker   49   1 Reply

momochiime

Primary alcohols can be oxidized to either aldehydes or ketones.

Primary alcohols can be oxidized to either aldehydes or ketones.

Primary alcohols can be oxidized to either aldehydes or ketones.

▸ true

▸ false

mrzbrooks   52   1 Reply

sahib121

Alcohols can be dehydrated to form alkenes.

Alcohols can be dehydrated to form alkenes.

Alcohols can be dehydrated to form alkenes.

▸ true

▸ false

lindsaykinz   35   1 Reply

danielaremu

A secondary alcohol can be easily oxidized to a carboxylic acid.

A secondary alcohol can be easily oxidized to a carboxylic acid.

A secondary alcohol can be easily oxidized to a carboxylic acid.

▸ true

▸ false

Gprophet   39   1 Reply

gaatng

Formaldehyde is used in solution as a germicide and preservative.

Formaldehyde is used in solution as a germicide and preservative.

Formaldehyde is used in solution as a germicide and preservative.

▸ true

▸ false

andrewschloding   49   1 Reply

Zainab Ghaddar