Question 1

Which of the following elements will have more than two electrons and have a full outer orbital?

Accepted Answer

A)   He
B)   Ne
C)   C
D)   N
E)   OF) A) and B)
G) C) and D)

Question 2

List the properties of water.

Accepted Answer

1.Water has a high heat capacity.
2.Water has a high heat of evaporation.
3.Water is a solvent.
4.Water molecules are cohesive and adhesive.
5.Frozen water is less dense than liquid water.

Question 3

The smallest unit of an element that still retains the chemical and physical properties of that element is called a(n)

Accepted Answer

A)   isotope.
B)   nucleus.
C)   atom.
D)   molecular bond.
E)   neutrino.F) D) and E)
G) B) and E)

Question 4

Which of the following is not present in a nucleotide?

Accepted Answer

A)   phosphate
B)   nitrogenous base
C)   five-ring sugar
D)   an R group
E)   a pentoseF) B) and E)
G) A) and B) D

Question 5

ATP is called the energy currency of the body because it is a type of electricity.

Accepted Answer

A) True 
 B)False

Question 6

Hydrogen bonds

Accepted Answer

A)   result from the loss of neutrons by an atom.
B)   result in the formation of salts.
C)   involve the loss and gain of electrons.
D)   involve the sharing of electrons.
E)   are relatively weak and can be broken rather easily.F) B) and D)
G) A) and D)

Question 7

The main function of carbohydrates is for long-term energy storage.

Accepted Answer

A) True 
 B)False

Question 8

What substance is used in medicine to produce various images of organs and tissues?

Accepted Answer

A)   a mixture
B)   a tracer
C)   an emulsion
D)   a colloid
E)   a sensorF) C) and D)
G) None of the above

Question 9

Isotopes of an element differ due to the number of

Accepted Answer

A)   protons.
B)   neutrons.
C)   electrons.
D)   both protons and electrons.
E)   neutrinos.F) A) and E)
G) B) and D)

Question 10

Sugars with three to seven carbon atoms are called

Accepted Answer

A)   monosaccharides.
B)   disaccharides.
C)   trisaccharides.
D)   polysaccharides.
E)   steroids.F) A) and B)
G) B) and C)

Question 11

Two or more atoms joined together through the sharing of electrons are called a(n)

Accepted Answer

A)   atomic unit.
B)   molecule.
C)   compound.
D)   isotope.
E)   ion.F) B) and D)
G) None of the above

Question 12

Starch,cellulose,and glycogen are alike in that they

Accepted Answer

A)   are all made of glucose.
B)   contain the same number of side chains.
C)   have the same types of bonds between the monomer units.
D)   are all found in animals.
E)   can all be digested by our bodies.F) A) and E)
G) C) and D) A

Question 13

A fat contains how many fatty acids?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) B) and E)
G) C) and D)

Question 14

What is the symbol for sodium?

Accepted Answer

A)   Na
B)   S
C)   So
D)   N
E)   DmF) D) and E)
G) A) and E)

Question 15

NaCl is not an organic molecule.

Accepted Answer

A) True 
 B)False

Question 16

In an atom,the number of protons always equals the number of

Accepted Answer

A)   electrons.
B)   neutrons.
C)   neutrons and protons.
D)   quarks.
E)   neutrinos.F) A) and B)
G) All of the above

Question 17

After lunch,our digestive system will use the process of hydrolysis to break the food down into smaller subunits.

Accepted Answer

A) True 
 B)False

Question 18

Water makes up 60-70% of total body weight.

Accepted Answer

A) True 
 B)False

Question 19

Describe the structure and function of the DNA molecule.

Accepted Answer

DNA is composed of a phosphate group,nit...

Question 20

In biology,calling something organic means that it was grown without the use of any type of herbicide.

Accepted Answer

A) True 
 B)False

Exam 2: Chemistry of Life

Which of the following elements will have more than two electrons and have a full outer orbital?

Correct AnswerverifiedShow Answer

List the properties of water.

Correct Answerverified1.Water has a high heat capacity. 2.Water has a high heat of evaporation. 3.Water is a solvent. 4.Water molecules are cohesive and adhesive. 5.Frozen water is less dense than liquid water.

The smallest unit of an element that still retains the chemical and physical properties of that element is called a(n)

Correct AnswerverifiedShow Answer

Which of the following is not present in a nucleotide?

Correct AnswerverifiedD

ATP is called the energy currency of the body because it is a type of electricity.

Correct AnswerverifiedShow Answer

Hydrogen bonds

Correct AnswerverifiedShow Answer

The main function of carbohydrates is for long-term energy storage.

Correct AnswerverifiedShow Answer

What substance is used in medicine to produce various images of organs and tissues?

Correct AnswerverifiedShow Answer

Isotopes of an element differ due to the number of

Correct AnswerverifiedShow Answer

Sugars with three to seven carbon atoms are called

Correct AnswerverifiedShow Answer

Two or more atoms joined together through the sharing of electrons are called a(n)

Correct AnswerverifiedShow Answer

Starch,cellulose,and glycogen are alike in that they

Correct AnswerverifiedA

A fat contains how many fatty acids?

Correct AnswerverifiedShow Answer

What is the symbol for sodium?

Correct AnswerverifiedShow Answer

NaCl is not an organic molecule.

Correct AnswerverifiedShow Answer

In an atom,the number of protons always equals the number of

Correct AnswerverifiedShow Answer

After lunch,our digestive system will use the process of hydrolysis to break the food down into smaller subunits.

Correct AnswerverifiedShow Answer

Water makes up 60-70% of total body weight.

Correct AnswerverifiedShow Answer

Describe the structure and function of the DNA molecule.

Correct AnswerverifiedDNA is composed of a phosphate group,nit...View AnswerShow Answer

In biology,calling something organic means that it was grown without the use of any type of herbicide.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
1.Water has a high heat capacity. 2.Water has a high heat of evaporation. 3.Water is a solvent. 4.Water molecules are cohesive and adhesive. 5.Frozen water is less dense than liquid water.

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
DNA is composed of a phosphate group,nit...
View Answer

Correct Answer
verified