Question 1

The final three-dimensional shape of a protein is its ____________ structure.

Accepted Answer

A)   primary
B)   secondary
C)   tertiary
D)   quaternary

Question 2

The final three-dimensional shape of a single polypeptide is called its _____________ structure.

Accepted Answer

A)   primary
B)   secondary
C)   tertiary
D)   quaternary

Question 3

Hydrogen bonds between different parts of the polypeptide chain result in which level of protein structure?

Accepted Answer

A)   Primary
B)   Secondary
C)   Tertiary
D)   Quaternary

Question 4

The sequence of nucleotides in DNA specifies the sequence of ________________ in a protein.

Accepted Answer

The answer of The sequence of nucleotides in DNA specifies...

Question 5

Describe the structure of DNA.

Accepted Answer

The monomer is a nucleotide of deoxyribo...

Question 6

Describe five functions of proteins.

Accepted Answer

Proteins catalyze chemical rea...

Question 7

The external skeleton of many invertebrates is made of:

Accepted Answer

A)   starch
B)   cellulose
C)   chitin
D)   glycogen
E)   sucrose

Question 8

Which polymer serves as the information storage molecule for cells?

Accepted Answer

A)   Carbohydrate
B)   Nucleic acid
C)   Protein
D)   Lipids

Question 9

Chargaff's rule says:

Accepted Answer

A)   that there are 20 amino acids that make up all proteins
B)   that in DNA molecules,the amount of adenine always equals the amount of thymine and the amount of cytosine always equals the amount of guanine
C)   lipids always will be hydrophobic molecules
D)   that the ratio of carbon atoms to hydrogen atoms to oxygen atoms is 1:2:1 in carbohydrates
E)   macromolecules are formed by dehydration synthesis reactions

Question 10

List the four major types of macromolecules,their subunits (building blocks),and their functions.

Accepted Answer

(1)Proteins.The subunits are amino acids...

Question 11

Unsaturated fats are usually solid at room temperature.

Accepted Answer

A) True 
 B)False

Question 12

Explain what diets that are high in saturated fats can cause in the circulatory system of a human.

Accepted Answer

High blood...

Question 13

When a protein is denatured,which level of protein structure is unaffected?

Accepted Answer

A)   Primary
B)   Secondary
C)   Tertiary
D)   Quaternary

Question 14

In RNA,thymine is replaced with __________.

Accepted Answer

The answer of In RNA,thymine is replaced with __________....

Question 15

When a protein is composed of more than one polypeptide chain,the arrangement of the chains is called the ____________ structure.

Accepted Answer

A)   primary
B)   secondary
C)   tertiary
D)   quaternary

Question 16

Fats composed of fatty acids that have double bonds in the fatty acids and have fewer than the maximum number of hydrogen atoms are:

Accepted Answer

A)   saturated.
B)   liquids at room temperature.
C)   solid at room temperature.
D)   generally found in animal fats.
E)   made of glycerol plus two fatty acids.

Question 17

If one strand is CCAATTG on DNA,then the complementary chain is:

Accepted Answer

A)   CCAATTG
B)   AAGGUUC
C)   GGUUAAC
D)   GGTTAAC
E)   It is impossible to determine.

Question 18

Proteins are made up of ____________ strung together by _________ bonds.

Accepted Answer

A)   amino acids;peptide
B)   monosaccharides;covalent
C)   monomers;ionic
D)   polymers;hydrogen

Question 19

Which level of protein structure ultimately determines all the other levels of structure?

Accepted Answer

A)   Primary
B)   Secondary
C)   Tertiary
D)   Quaternary

Question 20

Nucleic acids are long polymers of repeating subunits called __________.

Accepted Answer

The answer of Nucleic acids are long polymers of repeating...

Exam 3: Molecules of Life

List the four major types of macromolecules,their subunits (building blocks),and their functions.

Correct Answerverified(1)Proteins.The subunits are amino acids...View AnswerShow Answer

If one strand is CCAATTG on DNA,then the complementary chain is:

Correct AnswerverifiedShow Answer

Unsaturated fats are usually solid at room temperature.

Correct AnswerverifiedShow Answer

Chargaff's rule says:

Correct AnswerverifiedShow Answer

Describe the structure of DNA.

Correct AnswerverifiedThe monomer is a nucleotide of deoxyribo...View AnswerShow Answer

In RNA,thymine is replaced with __________.

Correct AnswerverifiedShow Answer

Describe five functions of proteins.

Correct AnswerverifiedProteins catalyze chemical rea...View AnswerShow Answer

Hydrogen bonds between different parts of the polypeptide chain result in which level of protein structure?

Correct AnswerverifiedShow Answer

The external skeleton of many invertebrates is made of:

Correct AnswerverifiedShow Answer

Fats composed of fatty acids that have double bonds in the fatty acids and have fewer than the maximum number of hydrogen atoms are:

Correct AnswerverifiedShow Answer

When a protein is denatured,which level of protein structure is unaffected?

Correct AnswerverifiedShow Answer

The sequence of nucleotides in DNA specifies the sequence of ________________ in a protein.

Correct AnswerverifiedShow Answer

Which polymer serves as the information storage molecule for cells?

Correct AnswerverifiedShow Answer

Which level of protein structure ultimately determines all the other levels of structure?

Correct AnswerverifiedShow Answer

Proteins are made up of ____________ strung together by _________ bonds.

Correct AnswerverifiedShow Answer

The final three-dimensional shape of a single polypeptide is called its _____________ structure.

Correct AnswerverifiedShow Answer

When a protein is composed of more than one polypeptide chain,the arrangement of the chains is called the ____________ structure.

Correct AnswerverifiedShow Answer

The final three-dimensional shape of a protein is its ____________ structure.

Correct AnswerverifiedShow Answer

Nucleic acids are long polymers of repeating subunits called __________.

Correct AnswerverifiedShow Answer

Explain what diets that are high in saturated fats can cause in the circulatory system of a human.

Correct AnswerverifiedHigh blood...View AnswerShow Answer

Correct Answer
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(1)Proteins.The subunits are amino acids...
View Answer

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Correct Answer
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The monomer is a nucleotide of deoxyribo...
View Answer

Correct Answer
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Correct Answer
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Proteins catalyze chemical rea...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Proteins are made up of ____ strung together by _ bonds.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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High blood...
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