Question 1

In photosynthesis, light energy is converted into chemical energy plus heat energy.According to the first law of thermodynamics,

Accepted Answer

A)  the amount light energy is greater than the amount of chemical energy and heat energy combined. 
B)  the amount of energy in heat plus chemical energy is greater than the amount of energy in light. 
C)  the amount of light energy is equal to the amount of chemical energy and heat energy combined. 
D)  the amount of light energy is equal to the amount of chemical energy, since both are forms of potential energy. 
E)  there is no relationship between the amount of energy in light versus the amount of energy in chemical and heat energy since they are all different forms of energy. 
A)  the amount light energy is greater than the amount of chemical energy and heat energy combined. 
B)  the amount of energy in heat plus chemical energy is greater than the amount of energy in light. 
C)  the amount of light energy is equal to the amount of chemical energy and heat energy combined. 
D)  the amount of light energy is equal to the amount of chemical energy, since both are forms of potential energy. 
E)  there is no relationship between the amount of energy in light versus the amount of energy in chemical and heat energy since they are all different forms of energy. C

Question 2

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 A

Question 3

Which of the following is NOT a form of metabolism?

Accepted Answer

A)  respiration 
B)  photosynthesis 
C)  diffusion 
D)  digestion 
E)  assimilation 
A)  respiration 
B)  photosynthesis 
C)  diffusion 
D)  digestion 
E)  assimilation C

Question 4

Each nucleotide of a DNA molecule consists of a nitrogenous base plus _____________.

Accepted Answer

A)  a 5-carbon sugar and a phosphate group 
B)  an RNA molecule 
C)  a sulfur salt 
D)  a form of starch and a potassium ion 
E)  a lipid and a carbohydrate 
A)  a 5-carbon sugar and a phosphate group 
B)  an RNA molecule 
C)  a sulfur salt 
D)  a form of starch and a potassium ion 
E)  a lipid and a carbohydrate

Question 5

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 6

Isotopes of an element have the same chemical characteristics but slightly different atomic mass due to differing number of neutrons.

Accepted Answer

A) True 
 B)False

Question 7

The number of naturally occurring amino acids is ________________.

Accepted Answer

A)  20 
B)  600 
C)  less than 10 
D)  35 
E)  64 
A)  20 
B)  600 
C)  less than 10 
D)  35 
E)  64

Question 8

Laws pertaining to energy are called laws of ___________________.

Accepted Answer

A)  metabolism 
B)  aerodynamics 
C)  atomic fusion 
D)  thermodynamics 
E)  heredity 
A)  metabolism 
B)  aerodynamics 
C)  atomic fusion 
D)  thermodynamics 
E)  heredity

Question 9

Which of the following is NOT an attribute of ALL living organisms?

Accepted Answer

A)  response to stimuli 
B)  metabolism 
C)  nervous system 
D)  reproduction 
E)  growth 
A)  response to stimuli 
B)  metabolism 
C)  nervous system 
D)  reproduction 
E)  growth

Question 10

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 11

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 12

________________ polymers serve as the genetic memory in living cells.

Accepted Answer

A)  Carbohydrate 
B)  Nucleic acids 
C)  Proteins 
D)  Lipids 
E)  Two or more of these 
A)  Carbohydrate 
B)  Nucleic acids 
C)  Proteins 
D)  Lipids 
E)  Two or more of these

Question 13

Structural and functional molecules making up a cell have a skeleton of ___________________.

Accepted Answer

A)  carbon, hydrogen and oxygen 
B)  nitrogen and oxygen 
C)  silicon and oxygen 
D)  carbon and oxygen 
E)  calcium phosphate 
A)  carbon, hydrogen and oxygen 
B)  nitrogen and oxygen 
C)  silicon and oxygen 
D)  carbon and oxygen 
E)  calcium phosphate

Question 14

Compounds that consist of carbon, hydrogen, and oxygen in a ratio of CH2O are ___________.

Accepted Answer

A)  lipids 
B)  proteins 
C)  nucleic acids 
D)  enzymes 
E)  carbohydrates 
A)  lipids 
B)  proteins 
C)  nucleic acids 
D)  enzymes 
E)  carbohydrates

Question 15

Nucleotides and amino acids are both "building blocks" of larger molecules.

Accepted Answer

A) True 
 B)False

Question 16

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 17

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 18

Nitrogenous bases refer to specific types of amino acids

Accepted Answer

A) True 
 B)False

Question 19

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 20

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

Exam 2: The Nature of Life

In photosynthesis, light energy is converted into chemical energy plus heat energy.According to the first law of thermodynamics,

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

Which of the following is NOT a form of metabolism?

Each nucleotide of a DNA molecule consists of a nitrogenous base plus _____________.

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

Isotopes of an element have the same chemical characteristics but slightly different atomic mass due to differing number of neutrons.

The number of naturally occurring amino acids is ________________.

Laws pertaining to energy are called laws of ___________________.

Which of the following is NOT an attribute of ALL living organisms?

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

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

________________ polymers serve as the genetic memory in living cells.

Structural and functional molecules making up a cell have a skeleton of ___________________.

Compounds that consist of carbon, hydrogen, and oxygen in a ratio of CH2O are ___________.

Nucleotides and amino acids are both "building blocks" of larger molecules.

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

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

Nitrogenous bases refer to specific types of amino acids

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

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

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 Kingdombacteria, Domain King-Domarchaea, 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

Compounds that consist of carbon, hydrogen, and oxygen in a ratio of CH₂O are ___________.