Question 1

A(n) ________ is a nonprotein substance that aids in forming the enzyme-substrate complex in metabolic reactions.

Accepted Answer

The answer of A(n) ________ is a nonprotein substance that...

Question 2

Which of the following is not found in ATP?

Accepted Answer

ATP (Adenosine Triphosphate) contains all of the listed components: a nitrogen-containing base (adenine), a sugar (ribose), and a phosphate group.

Question 3

You received your genetic material from your parents in the form of DNA. Your DNA provides your cells with instruction for making ________.

Accepted Answer

DNA provides the instructions for making proteins. Lipids and cholesterol are not directly coded for in DNA, and while some polysaccharides may be produced based on DNA instructions, they are not the primary product of DNA.

Question 4

A molecule with hydrophobic properties and polar molecular attributes would be called a(n) ________.

Accepted Answer

The answer of A molecule with hydrophobic properties and polar...

Question 5

The ________ can be used to measure whether a substance is an acid or a base.

Accepted Answer

The answer of The ________ can be used to measure...

Question 6

Triglycerides ________.

Accepted Answer

Triglycerides can provide twice the energy per gram than proteins.

Question 7

Alteration of the ________ structure of a protein can transform the protein into an infectious agent known as a prion.

Accepted Answer

The answer of Alteration of the ________ structure of a...

Question 8

A polysaccharide that is made by plants and can usually be digested by humans is ________.

Accepted Answer

The answer of A polysaccharide that is made by plants...

Question 9

By analyzing the chemical formulas, you can determine that this molecule, CH₃CH(NH₂)COOH, is a(n) ________, whereas the molecule C₅H₁₀O₅ is a(n) ________.

Accepted Answer

CH3CH(NH2)COOH is a compound containing both an amino group (NH2) and a carboxyl group (COOH), which are characteristic of amino acids. C5H10O5 represents the chemical formula for a sugar, specifically a pentose sugar, which is a carbohydrate made up of five carbon atoms and having five hydroxyl groups (-OH). Therefore, only choice B, which identifies CH3CH(NH2)COOH as an amino acid and C5H10O5 as a sugar, is correct.

Question 10

Atoms that have the same number of protons but differ in the number of neutrons are called ________.

Accepted Answer

The answer of Atoms that have the same number of...

Question 11

The hydrogen, ionic, and covalent bonds that stabilize the shape of a protein contribute to which level of structure of a protein?

Accepted Answer

The tertiary structure of a protein is stabilized by hydrogen, ionic, and covalent bonds, as well as hydrophobic interactions, which contribute to the overall shape of the protein. This level of structure is responsible for the final 3-dimensional conformation of the protein.

Question 12

These lipids have a hydrophobic part and a hydrophilic part.

Accepted Answer

Phospholipids have a hydrophobic fatty acid tail and a hydrophilic phosphate head, making them amphipathic molecules. Triglycerides have three hydrophobic fatty acid tails and no hydrophilic component, carotenoids are entirely hydrophobic, and steroids have a hydrophobic core with hydrophilic functional groups on the periphery.

Question 13

A(n) ________ consists of many monomer subunits bonded together in order to produce a large molecule.

Accepted Answer

The answer of A(n) ________ consists of many monomer subunits...

Question 14

________ is the process of using water to break down polymers to their monomer subunits.

Accepted Answer

The answer of ________ is the process of using water...

Question 15

A substance that, when dissociated in water, will give off hydrogen ions is referred to as a(n) ________.

Accepted Answer

The answer of A substance that, when dissociated in water,...

Question 16

An organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following?

Accepted Answer

The question specifically mentions "instructions for the synthesis or production of polypeptide chains," which is the function of DNA. Nucleotides are the building blocks of DNA, but they do not provide instructions for protein synthesis. Lipids are not involved in protein synthesis at all, and ATP is a molecule involved in energy metabolism, not protein synthesis.

Question 17

A researcher suspects that the food in an ecosystem has been contaminated with radioactive phosphates over a period of months. Which of the following substances could be examined for radioactive phosphate to test the hypothesis?

Accepted Answer

Radioactive phosphates would likely be incorporated into the DNA of organisms in the area as they replicate their genetic material. Amino acids within proteins and starch molecules would not necessarily contain radioactive phosphate.

Question 18

A protein that speeds up chemical reactions without being consumed in the process is called a(n) ________.

Accepted Answer

The answer of A protein that speeds up chemical reactions...

Question 19

Dipeptidase is an enzyme found in your small intestine that helps break polypeptides down. What would its most likely products be?

Accepted Answer

Dipeptidase specifically breaks down dipeptides (two amino acids linked together). Its most likely products would therefore be individual amino acids.

Question 20

When an electron moves from the outer shell of one element to the outer shell of another element, a(n) ________ bond has been created.

Accepted Answer

The answer of When an electron moves from the outer...

Quiz 3: Chemistry Comes to Life

A(n) ________ is a nonprotein substance that aids in forming the enzyme-substrate complex in metabolic reactions.

Which of the following is not found in ATP?

You received your genetic material from your parents in the form of DNA. Your DNA provides your cells with instruction for making ________.

A molecule with hydrophobic properties and polar molecular attributes would be called a(n) ________.

The ________ can be used to measure whether a substance is an acid or a base.

Triglycerides ________.

Alteration of the ________ structure of a protein can transform the protein into an infectious agent known as a prion.

A polysaccharide that is made by plants and can usually be digested by humans is ________.

By analyzing the chemical formulas, you can determine that this molecule, CH₃CH(NH₂) COOH, is a(n) , whereas the molecule C₅H₁₀O₅ is a(n) .

Atoms that have the same number of protons but differ in the number of neutrons are called ________.

The hydrogen, ionic, and covalent bonds that stabilize the shape of a protein contribute to which level of structure of a protein?

These lipids have a hydrophobic part and a hydrophilic part.

A(n) ________ consists of many monomer subunits bonded together in order to produce a large molecule.

________ is the process of using water to break down polymers to their monomer subunits.

A substance that, when dissociated in water, will give off hydrogen ions is referred to as a(n) ________.

An organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following?

A researcher suspects that the food in an ecosystem has been contaminated with radioactive phosphates over a period of months. Which of the following substances could be examined for radioactive phosphate to test the hypothesis?

A protein that speeds up chemical reactions without being consumed in the process is called a(n) ________.

Dipeptidase is an enzyme found in your small intestine that helps break polypeptides down. What would its most likely products be?

When an electron moves from the outer shell of one element to the outer shell of another element, a(n) ________ bond has been created.

Quiz 3: Chemistry Comes to Life

A(n) ________ is a nonprotein substance that aids in forming the enzyme-substrate complex in metabolic reactions.

Which of the following is not found in ATP?

You received your genetic material from your parents in the form of DNA. Your DNA provides your cells with instruction for making ________.

A molecule with hydrophobic properties and polar molecular attributes would be called a(n) ________.

The ________ can be used to measure whether a substance is an acid or a base.

Triglycerides ________.

Alteration of the ________ structure of a protein can transform the protein into an infectious agent known as a prion.

A polysaccharide that is made by plants and can usually be digested by humans is ________.

By analyzing the chemical formulas, you can determine that this molecule, CH3CH(NH2) COOH, is a(n) ________, whereas the molecule C5H10O5 is a(n) ________.

Atoms that have the same number of protons but differ in the number of neutrons are called ________.

The hydrogen, ionic, and covalent bonds that stabilize the shape of a protein contribute to which level of structure of a protein?

These lipids have a hydrophobic part and a hydrophilic part.

A(n) ________ consists of many monomer subunits bonded together in order to produce a large molecule.

________ is the process of using water to break down polymers to their monomer subunits.

A substance that, when dissociated in water, will give off hydrogen ions is referred to as a(n) ________.

An organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following?

A researcher suspects that the food in an ecosystem has been contaminated with radioactive phosphates over a period of months. Which of the following substances could be examined for radioactive phosphate to test the hypothesis?

A protein that speeds up chemical reactions without being consumed in the process is called a(n) ________.

Dipeptidase is an enzyme found in your small intestine that helps break polypeptides down. What would its most likely products be?

When an electron moves from the outer shell of one element to the outer shell of another element, a(n) ________ bond has been created.

By analyzing the chemical formulas, you can determine that this molecule, CH₃CH(NH₂) COOH, is a(n) , whereas the molecule C₅H₁₀O₅ is a(n) .