Question 1

Which type of chemical bonds are found within a water molecule?

Accepted Answer

A) hydrogen 
B) ionic 
C) polar covalent 
D) nonpolar covalent 
E) triple 
A) hydrogen 
B) ionic 
C) polar covalent 
D) nonpolar covalent 
E) triple

Question 2

Large polymers are formed from smaller subunits by which type of reaction?

Accepted Answer

A) oxidation 
B) reduction 
C) condensation 
D) hydrolysis 
E) decarboxylation 
A) oxidation 
B) reduction 
C) condensation 
D) hydrolysis 
E) decarboxylation

Question 3

Glucose dissolves in water because it ____.

Accepted Answer

A) ionizes 
B) is a polysaccharide 
C) is a polar and forms many hydrogen bonds with water molecules 
D) has a very reactive primary structure 
E) is an isotope 
A) ionizes 
B) is a polysaccharide 
C) is a polar and forms many hydrogen bonds with water molecules 
D) has a very reactive primary structure 
E) is an isotope

Question 4

Which type of bond exists between two amino acids in a protein?

Accepted Answer

A) peptide 
B) ionic 
C) hydrogen 
D) amino 
E) sulfhydryl 
A) peptide 
B) ionic 
C) hydrogen 
D) amino 
E) sulfhydryl

Question 5

Match the following terms to the correct description.
-substance that accepts hydrogen ions in solution

Accepted Answer

A) acid 
B) base 
C) neutral 
D) buffer 
E) pH 
A) acid 
B) base 
C) neutral 
D) buffer 
E) pH

Question 6

Two amino acids are bonded together to form a dipeptide by which type of reaction?

Accepted Answer

A) condensation 
B) oxidation reduction 
C) hydrolysis 
D) decomposition 
E) acid-base 
A) condensation 
B) oxidation reduction 
C) hydrolysis 
D) decomposition 
E) acid-base

Question 7

What category of compounds helps our body fluids to stay within a consistent pH range?

Accepted Answer

A) solvents 
B) buffers 
C) solutes 
D) acids 
E) bases 
A) solvents 
B) buffers 
C) solutes 
D) acids 
E) bases

Question 8

The negative subatomic particle is the ____.

Accepted Answer

A) neutron 
B) proton 
C) electron 
D) quark 
E) Higg's boson 
A) neutron 
B) proton 
C) electron 
D) quark 
E) Higg's boson

Question 9

The structural formula for molecular oxygen is depicted as O=O.What kind of bond holds molecular oxygen together?

Accepted Answer

A) ionic 
B) polar covalent 
C) single covalent 
D) double covalent 
E) triple covalent 
A) ionic 
B) polar covalent 
C) single covalent 
D) double covalent 
E) triple covalent

Question 10

Match the structures below with the appropriate label in the figure above.
-fatty acid

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G 
A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G

Question 11

A solution at a pH of 10 contains how many times more hydrogen ions than a solution at a pH of 7?

Accepted Answer

A) 2 
B) 3 
C) 10 
D) 100 
E) 1,000 
A) 2 
B) 3 
C) 10 
D) 100 
E) 1,000

Question 12

Match the following terms to the correct description.
-total number of protons and neutrons in the nucleus of an atom

Accepted Answer

A) mass number 
B) atomic number 
C) radioisotope 
D) isotopes 
E) ions 
A) mass number 
B) atomic number 
C) radioisotope 
D) isotopes 
E) ions

Question 13

In a cell membrane,the phospholipid heads are ____.

Accepted Answer

A) hydrophobic 
B) nonpolar 
C) dissolved in the cell's watery interior 
D) sandwiched between the phospholipid tails 
E) formed by fatty acids 
A) hydrophobic 
B) nonpolar 
C) dissolved in the cell's watery interior 
D) sandwiched between the phospholipid tails 
E) formed by fatty acids

Question 14

The human body requires about ____ of fat each day to stay healthy.

Accepted Answer

A) 1 teaspoon 
B) 4 teaspoons 
C) 1 tablespoon 
D) 4 tablespoons 
E) 1 cup 
A) 1 teaspoon 
B) 4 teaspoons 
C) 1 tablespoon 
D) 4 tablespoons 
E) 1 cup

Question 15

Which property of water molecules is responsible for movement of water from roots to leaves in a plant?

Accepted Answer

A) hydrophobicity 
B) temperature stability 
C) fusion 
D) solvent polarity 
E) cohesion 
A) hydrophobicity 
B) temperature stability 
C) fusion 
D) solvent polarity 
E) cohesion

Question 16

Carbon has an atomic number of 6.Carbon-14 has _____.

Accepted Answer

A) 6 neutrons and 6 protons 
B) 6 neutrons and 8 protons 
C) 8 neutrons and 6 protons 
D) 14 neutrons and 6 protons 
E) 14 protons and 6 neutrons 
A) 6 neutrons and 6 protons 
B) 6 neutrons and 8 protons 
C) 8 neutrons and 6 protons 
D) 14 neutrons and 6 protons 
E) 14 protons and 6 neutrons

Question 17

Which two atoms are found in all organic compounds?

Accepted Answer

A) carbon and hydrogen 
B) carbon and oxygen 
C) oxygen and hydrogen 
D) carbon and phosphorous 
E) oxygen and sulfur 
A) carbon and hydrogen 
B) carbon and oxygen 
C) oxygen and hydrogen 
D) carbon and phosphorous 
E) oxygen and sulfur

Question 18

Which bond is weakest?

Accepted Answer

A) ionic 
B) double covalent 
C) polar covalent 
D) nonpolar covalent 
E) hydrogen 
A) ionic 
B) double covalent 
C) polar covalent 
D) nonpolar covalent 
E) hydrogen

Question 19

Which is an organic molecule?

Accepted Answer

A) carbon dioxide (CO2) 
B) water (H2O) 
C) methane (CH4) 
D) hydrochloric acid (HCl) 
E) oxygen (O2) 
A) carbon dioxide (CO2) 
B) water (H2O) 
C) methane (CH4) 
D) hydrochloric acid (HCl) 
E) oxygen (O2)

Question 20

A pH value of ____ has the highest concentration of hydrogen ions.

Accepted Answer

A) 1 
B) 3 
C) 5 
D) 7 
E) 9 
A) 1 
B) 3 
C) 5 
D) 7 
E) 9

Which type of chemical bonds are found within a water molecule?

Large polymers are formed from smaller subunits by which type of reaction?

Glucose dissolves in water because it ____.

Which type of bond exists between two amino acids in a protein?

Match the following terms to the correct description. -substance that accepts hydrogen ions in solution

Two amino acids are bonded together to form a dipeptide by which type of reaction?

What category of compounds helps our body fluids to stay within a consistent pH range?

The negative subatomic particle is the ____.

The structural formula for molecular oxygen is depicted as O=O.What kind of bond holds molecular oxygen together?

Match the structures below with the appropriate label in the figure above. -fatty acid

A solution at a pH of 10 contains how many times more hydrogen ions than a solution at a pH of 7?

Match the following terms to the correct description. -total number of protons and neutrons in the nucleus of an atom

In a cell membrane,the phospholipid heads are ____.

The human body requires about ____ of fat each day to stay healthy.

Which property of water molecules is responsible for movement of water from roots to leaves in a plant?

Carbon has an atomic number of 6.Carbon-14 has _____.

Which two atoms are found in all organic compounds?

Which bond is weakest?

Which is an organic molecule?

A pH value of ____ has the highest concentration of hydrogen ions.

Invitation To Biology

Cell Structure

Energy And Metabolism

Capturing And Releasing Energy

DNA Structure And Function

Gene Expression AND Control

How Cells Reproduce

Patterns Of Inheritance

Biotechnology

Evidence Of Evolution

Processes Of Evolution

Early Life Forms And The Viruses

Plants And Fungi

Animal Evolution

Population Ecology

Communities And Ecosystems

The Biosphere And Human Effects

Filters

Exam 2: Molecules Of Life

Which type of chemical bonds are found within a water molecule?

Large polymers are formed from smaller subunits by which type of reaction?

Glucose dissolves in water because it ____.

Which type of bond exists between two amino acids in a protein?

Match the following terms to the correct description. -substance that accepts hydrogen ions in solution

Two amino acids are bonded together to form a dipeptide by which type of reaction?

What category of compounds helps our body fluids to stay within a consistent pH range?

The negative subatomic particle is the ____.

The structural formula for molecular oxygen is depicted as O=O.What kind of bond holds molecular oxygen together?

Match the structures below with the appropriate label in the figure above. -fatty acid

A solution at a pH of 10 contains how many times more hydrogen ions than a solution at a pH of 7?

Match the following terms to the correct description. -total number of protons and neutrons in the nucleus of an atom

In a cell membrane,the phospholipid heads are ____.

The human body requires about ____ of fat each day to stay healthy.

Which property of water molecules is responsible for movement of water from roots to leaves in a plant?

Carbon has an atomic number of 6.Carbon-14 has _____.

Which two atoms are found in all organic compounds?

Which bond is weakest?

Which is an organic molecule?

A pH value of ____ has the highest concentration of hydrogen ions.

Invitation To Biology

Cell Structure

Energy And Metabolism

Capturing And Releasing Energy

DNA Structure And Function

Gene Expression AND Control

How Cells Reproduce

Patterns Of Inheritance

Biotechnology

Evidence Of Evolution

Processes Of Evolution

Early Life Forms And The Viruses

Plants And Fungi

Animal Evolution

Population Ecology

Communities And Ecosystems

The Biosphere And Human Effects

Filters