Question 1

What is the maximum number of single covalent bonds a carbon atom can form with other elements?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 2

Which number represents the atomic weight of carbon?

Accepted Answer

A) 6 
B) 12 
C) 18 
D) Not enough information given 
A) 6 
B) 12 
C) 18 
D) Not enough information given

Question 3

Identify the substrate in the following reaction: Sucrose → Fructose + Glucose

Accepted Answer

A) Sucrose 
B) Fructose 
C) Glucose 
D) Fructose and glucose 
A) Sucrose 
B) Fructose 
C) Glucose 
D) Fructose and glucose

Question 4

Something with a pH of 5 would be ________.

Accepted Answer

A) acidic 
B) basic 
C) neutral 
D) alkaline 
A) acidic 
B) basic 
C) neutral 
D) alkaline

Question 5

How many HCl molecules are required to balance the following reaction? Zn + ___ HCl → ZnCl₂ + H₂

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 6

What might lead to a protein that does not function properly?

Accepted Answer

A) Incorrect folding of the amino acid chain 
B) The active site becoming blocked 
C) The active site becoming distorted 
D) All of these 
A) Incorrect folding of the amino acid chain 
B) The active site becoming blocked 
C) The active site becoming distorted 
D) All of these

Question 7

To a large extent,a protein's function is dependent upon its shape.What determines a protein's shape?

Accepted Answer

A) The location of the active site 
B) The sequence of amino acids 
C) The concentration of carbon-to-hydrogen single bonds 
D) The number of carbon-to-carbon double bonds 
A) The location of the active site 
B) The sequence of amino acids 
C) The concentration of carbon-to-hydrogen single bonds 
D) The number of carbon-to-carbon double bonds

Question 8

What gives an amino acid its unique chemical properties?

Accepted Answer

A) The different amino groups 
B) The sequence of amino acids in a chain 
C) The bond that forms between amino acids 
D) The side group 
A) The different amino groups 
B) The sequence of amino acids in a chain 
C) The bond that forms between amino acids 
D) The side group

Question 9

What is the maximum number of electrons that can fit into the innermost shell of an atom?

Accepted Answer

A) 1 
B) 2 
C) 8 
D) 16 
A) 1 
B) 2 
C) 8 
D) 16

Question 10

Oil hydrogenation can produce a product,such as vegetable shortening or margarine,that is spreadable at room temperature.What is the name of this category of lipid?

Accepted Answer

A) Saturated fat 
B) Unsaturated fat 
C) Trans fat 
D) Cholesterol 
A) Saturated fat 
B) Unsaturated fat 
C) Trans fat 
D) Cholesterol

Question 11

What is the sum total of all the chemical reactions that take place in your body called?

Accepted Answer

A) Catabolism 
B) Anabolism 
C) Embolism 
D) Metabolism 
A) Catabolism 
B) Anabolism 
C) Embolism 
D) Metabolism

Question 12

Water "beads up" on synthetic fabric like polyester but binds to cotton.What is the most likely explanation for this?

Accepted Answer

A) Polyester is not a naturally occurring substance,whereas cotton is a naturally occurring substance. 
B) Polyester is more flexible than cotton. 
C) Polyester fibers are thinner than cotton fibers. 
D) Polyester is nonpolar,whereas cotton is polar. 
A) Polyester is not a naturally occurring substance,whereas cotton is a naturally occurring substance. 
B) Polyester is more flexible than cotton. 
C) Polyester fibers are thinner than cotton fibers. 
D) Polyester is nonpolar,whereas cotton is polar.

Question 13

Which combination describes the plasma membrane?

Accepted Answer

A) Hydrophilic interior,hydrophobic exterior 
B) Hydrophilic interior and exterior 
C) Hydrophobic interior,hydrophilic exterior 
D) Hydrophobic interior and exterior 
A) Hydrophilic interior,hydrophobic exterior 
B) Hydrophilic interior and exterior 
C) Hydrophobic interior,hydrophilic exterior 
D) Hydrophobic interior and exterior

Question 14

Identify the part of the atom that most determines the chemical reactivity of the atom.

Accepted Answer

A) The number of shells 
B) The number of protons 
C) The number of neutrons 
D) The number of electrons 
A) The number of shells 
B) The number of protons 
C) The number of neutrons 
D) The number of electrons

Question 15

Penicillin is a competitive inhibitor produced by a fungus in order to kill invading bacteria.It does this by mimicking the substrate required by the bacterium to build and repair its cell wall.Describe how mimicking the substrate would result in the death of the bacterium.

Accepted Answer

As a competitive inhibitor,it must bind

Question 16

A needle can be made to "float" on the surface tension of water.What causes this surface tension to form?

Accepted Answer

A) The adhesion of water molecules to the needle 
B) The cohesion of water molecules to each other 
C) The solubility of water 
D) The heat capacity of water 
A) The adhesion of water molecules to the needle 
B) The cohesion of water molecules to each other 
C) The solubility of water 
D) The heat capacity of water

Question 17

In chemical bonding,when the bonded atoms share electrons,it is specifically called ________.

Accepted Answer

A) an ionic bond 
B) a covalent bond 
C) a hydrogen bond 
D) a polar bond 
A) an ionic bond 
B) a covalent bond 
C) a hydrogen bond 
D) a polar bond

What is the maximum number of single covalent bonds a carbon atom can form with other elements?

Which number represents the atomic weight of carbon?

Identify the substrate in the following reaction: Sucrose → Fructose + Glucose

Something with a pH of 5 would be ________.

How many HCl molecules are required to balance the following reaction? Zn + ___ HCl → ZnCl₂ + H₂

What might lead to a protein that does not function properly?

To a large extent,a protein's function is dependent upon its shape.What determines a protein's shape?

What gives an amino acid its unique chemical properties?

What is the maximum number of electrons that can fit into the innermost shell of an atom?

Oil hydrogenation can produce a product,such as vegetable shortening or margarine,that is spreadable at room temperature.What is the name of this category of lipid?

What is the sum total of all the chemical reactions that take place in your body called?

Water "beads up" on synthetic fabric like polyester but binds to cotton.What is the most likely explanation for this?

Which combination describes the plasma membrane?

Identify the part of the atom that most determines the chemical reactivity of the atom.

Penicillin is a competitive inhibitor produced by a fungus in order to kill invading bacteria.It does this by mimicking the substrate required by the bacterium to build and repair its cell wall.Describe how mimicking the substrate would result in the death of the bacterium.

A needle can be made to "float" on the surface tension of water.What causes this surface tension to form?

In chemical bonding,when the bonded atoms share electrons,it is specifically called ________.

An Introduction to the Science of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 2: The Chemistry of Life

What is the maximum number of single covalent bonds a carbon atom can form with other elements?

Which number represents the atomic weight of carbon?

Identify the substrate in the following reaction: Sucrose → Fructose + Glucose

Something with a pH of 5 would be ________.

How many HCl molecules are required to balance the following reaction? Zn + ___ HCl → ZnCl₂ + H₂

What might lead to a protein that does not function properly?

To a large extent,a protein's function is dependent upon its shape.What determines a protein's shape?

What gives an amino acid its unique chemical properties?

What is the maximum number of electrons that can fit into the innermost shell of an atom?

Oil hydrogenation can produce a product,such as vegetable shortening or margarine,that is spreadable at room temperature.What is the name of this category of lipid?

What is the sum total of all the chemical reactions that take place in your body called?

Water "beads up" on synthetic fabric like polyester but binds to cotton.What is the most likely explanation for this?

Which combination describes the plasma membrane?

Identify the part of the atom that most determines the chemical reactivity of the atom.

Penicillin is a competitive inhibitor produced by a fungus in order to kill invading bacteria.It does this by mimicking the substrate required by the bacterium to build and repair its cell wall.Describe how mimicking the substrate would result in the death of the bacterium.

A needle can be made to "float" on the surface tension of water.What causes this surface tension to form?

In chemical bonding,when the bonded atoms share electrons,it is specifically called ________.

An Introduction to the Science of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters