Question 1

Which of the following is NOT a major component of protoplasm?

Accepted Answer

A)  carbon 
B)  hydrogen 
C)  oxygen 
D)  nitrogen 
E)  sulfur 
A)  carbon 
B)  hydrogen 
C)  oxygen 
D)  nitrogen 
E)  sulfur

Question 2

As living individuals grow and reproduce their response to environmental stimuli may include ________.

Accepted Answer

A)  movement 
B)  increase in size 
C)  change in position 
D)  all of these 
E)  none of these 
A)  movement 
B)  increase in size 
C)  change in position 
D)  all of these 
E)  none of these

Question 3

Determination of whether something is a living organism or a nonliving object is based on ________.

Accepted Answer

A)  a single characteristic such as change in position 
B)  presence of carbon and hydrogen atoms 
C)  several characteristics such as DNA and other organic materials inside a cell 
D)  movement 
E)  presence of carbon and oxygen atoms 
A)  a single characteristic such as change in position 
B)  presence of carbon and hydrogen atoms 
C)  several characteristics such as DNA and other organic materials inside a cell 
D)  movement 
E)  presence of carbon and oxygen atoms

Question 4

The function of a protein will be either less effective or lost if the three-dimensional shape of the protein is altered.

Accepted Answer

A) True 
 B)False

Question 5

When an acid and a base are mixed together, which of the following is produced?

Accepted Answer

A)  a salt 
B)  a mixture 
C)  an isotope 
D)  a lipid 
E)  a carbohydrate 
A)  a salt 
B)  a mixture 
C)  an isotope 
D)  a lipid 
E)  a carbohydrate

Question 6

About 50% of the cytoplasm including structures within are composed of carbon, hydrogen, oxygen, and nitrogen. The other 50% includes phosphorous, sulfur, potassium, and calcium.

Accepted Answer

A) True 
 B)False

Question 7

The basic "stuff of the universe" or matter has which of the following characteristics?

Accepted Answer

A)  occupies space 
B)  has mass 
C)  is composed of atomic elements 
D)  a and b only 
E)  all of the above 
A)  occupies space 
B)  has mass 
C)  is composed of atomic elements 
D)  a and b only 
E)  all of the above

Question 8

Covalent bonds between molecules inside living cells are often formed or broken through the addition or loss of ________.

Accepted Answer

A)  carbon dioxide 
B)  oxygen 
C)  water 
D)  chlorine and sodium 
E)  neutrons 
A)  carbon dioxide 
B)  oxygen 
C)  water 
D)  chlorine and sodium 
E)  neutrons

Question 9

What type of chemical bond joins amino acids together?

Accepted Answer

A)  hydrogen 
B)  glycosidic 
C)  ionic 
D)  peptide 
E)  both glycosidic and peptide are correct 
A)  hydrogen 
B)  glycosidic 
C)  ionic 
D)  peptide 
E)  both glycosidic and peptide are correct

Question 10

If a fatty acid contains three or more double bonds between the carbons in the carbon chains, it would be ________.

Accepted Answer

A)  saturated 
B)  unsaturated 
C)  polycarbonated 
D)  a polymer 
E)  polyunsaturated 
A)  saturated 
B)  unsaturated 
C)  polycarbonated 
D)  a polymer 
E)  polyunsaturated

Question 11

Carbon has an atomic number of 6. How many electrons does carbon have in its first and second electron orbitals, respectively?

Accepted Answer

A)  2, 4 
B)  4, 2 
C)  1, 5 
D)  3, 3 
E)  0, 6 
A)  2, 4 
B)  4, 2 
C)  1, 5 
D)  3, 3 
E)  0, 6

Question 12

A substance consisting of two or more elements united by chemical bonds in a definite ratio is called a

Accepted Answer

A)  molecule. 
B)  mixture. 
C)  compound. 
D)  base. 
E)  valence. 
A)  molecule. 
B)  mixture. 
C)  compound. 
D)  base. 
E)  valence.

Question 13

Which of the following metabolic activities of plants produces sugars?

Accepted Answer

A)  photosynthesis 
B)  assimilation 
C)  digestion 
D)  respiration 
E)  None of these answers are correct. 
A)  photosynthesis 
B)  assimilation 
C)  digestion 
D)  respiration 
E)  None of these answers are correct.

Question 14

Callose is produced on the bark of a plant that has been damaged.

Accepted Answer

A) True 
 B)False

Question 15

Hydrolysis of starch involves the addition of water molecules to the starch molecule.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following pH values is considered neutral (i.e., neither acidic nor basic)?

Accepted Answer

A)  6.8 
B)  7.3 
C)  7.5 
D)  8.0 
E)  none of the choices are correct 
A)  6.8 
B)  7.3 
C)  7.5 
D)  8.0 
E)  none of the choices are correct

Question 17

Nitrogenous bases refer to specific types of amino acids.

Accepted Answer

A) True 
 B)False

Question 18

Potential energy can be converted to kinetic energy.

Accepted Answer

A) True 
 B)False

Question 19

What is the maximum number of electrons that can occupy the innermost electron orbital?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  10 
A)  2 
B)  4 
C)  6 
D)  8 
E)  10

Question 20

If there is an asymmetric charge distribution on a molecule creating a positively charged sector and a negatively charged sector, the type of molecule resulting would be ________.

Accepted Answer

A)  neutral. 
B)  charged. 
C)  polar. 
D)  hydrophobic. 
E)  radioactive. 
A)  neutral. 
B)  charged. 
C)  polar. 
D)  hydrophobic. 
E)  radioactive.

Exam 2: The Nature of Life

Which of the following is NOT a major component of protoplasm?

As living individuals grow and reproduce their response to environmental stimuli may include ________.

Determination of whether something is a living organism or a nonliving object is based on ________.

The function of a protein will be either less effective or lost if the three-dimensional shape of the protein is altered.

When an acid and a base are mixed together, which of the following is produced?

About 50% of the cytoplasm including structures within are composed of carbon, hydrogen, oxygen, and nitrogen. The other 50% includes phosphorous, sulfur, potassium, and calcium.

The basic "stuff of the universe" or matter has which of the following characteristics?

Covalent bonds between molecules inside living cells are often formed or broken through the addition or loss of ________.

What type of chemical bond joins amino acids together?

If a fatty acid contains three or more double bonds between the carbons in the carbon chains, it would be ________.

Carbon has an atomic number of 6. How many electrons does carbon have in its first and second electron orbitals, respectively?

A substance consisting of two or more elements united by chemical bonds in a definite ratio is called a

Which of the following metabolic activities of plants produces sugars?

Callose is produced on the bark of a plant that has been damaged.

Hydrolysis of starch involves the addition of water molecules to the starch molecule.

Which of the following pH values is considered neutral (i.e., neither acidic nor basic)?

Nitrogenous bases refer to specific types of amino acids.

Potential energy can be converted to kinetic energy.

What is the maximum number of electrons that can occupy the innermost electron orbital?

If there is an asymmetric charge distribution on a molecule creating a positively charged sector and a negatively charged sector, the type of molecule resulting would be ________.

What Is Plant Biology

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants - Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters