Question 1

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 C

Question 2

All hormones and enzymes are lipids.

Accepted Answer

A) True 
 B)False  False

Question 3

Peptide bonds link the building blocks of carbohydrates together.

Accepted Answer

A) True 
 B)False  False

Question 4

If a plant is wounded, some cells near the wound site begin dividing and seal off the wound. Once the wound is sealed, the cells stop dividing. The criterion /criteria of life illustrated here is/are

Accepted Answer

A)  response to an external stimulus. 
B)  growth. 
C)  reproduction. 
D)  adaptation to the environment. 
E)  Both response to the environment and growth are involved. 
A)  response to an external stimulus. 
B)  growth. 
C)  reproduction. 
D)  adaptation to the environment. 
E)  Both response to the environment and growth are involved.

Question 5

The number of protons and electrons in a neutral atom is

Accepted Answer

A)  quite variable. 
B)  the same. 
C)  unknown. 
D)  always unequal. 
E)  unrelated. 
A)  quite variable. 
B)  the same. 
C)  unknown. 
D)  always unequal. 
E)  unrelated.

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

Response to a stimulus ________.

Accepted Answer

A)  requires movement 
B)  may include a cellular or chemical change in the individual 
C)  may occur without any chemical or physical change by the individual 
D)  is not characteristic of rooted plants. 
E)  always changes the genetic information 
A)  requires movement 
B)  may include a cellular or chemical change in the individual 
C)  may occur without any chemical or physical change by the individual 
D)  is not characteristic of rooted plants. 
E)  always changes the genetic information

Question 8

Protein molecules differ from those of carbohydrates and lipids in having nitrogen present.

Accepted Answer

A) True 
 B)False

Question 9

If hydrogen atoms are attached to every available attachment point of fatty acid carbon atoms in a fat, the fat is said to be unsaturated.

Accepted Answer

A) True 
 B)False

Question 10

A solution that is slightly alkaline would have a pH in the range of

Accepted Answer

A)  8.5. 
B)  7.5. 
C)  7.0. 
D)  6.5. 
E)  2.0. 
A)  8.5. 
B)  7.5. 
C)  7.0. 
D)  6.5. 
E)  2.0.

Question 11

An acid is a compound that

Accepted Answer

A)  releases hydroxyl ions when dissolved in water. 
B)  forms water when mixed with a salt. 
C)  releases positively charged hydrogen ions when dissolved in water. 
D)  converts starch to glucose. 
E)  converts proteins to carbohydrates. 
A)  releases hydroxyl ions when dissolved in water. 
B)  forms water when mixed with a salt. 
C)  releases positively charged hydrogen ions when dissolved in water. 
D)  converts starch to glucose. 
E)  converts proteins to carbohydrates.

Question 12

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 13

Which of the following carries a single positive charge?

Accepted Answer

A)  proton 
B)  neutron 
C)  lepton 
D)  electron 
E)  quark 
A)  proton 
B)  neutron 
C)  lepton 
D)  electron 
E)  quark

Question 14

The basic units or subunits of which a protein is composed are ________.

Accepted Answer

A)  fatty acids 
B)  glycerols 
C)  monosaccharides 
D)  amino acids 
E)  nucleic acids 
A)  fatty acids 
B)  glycerols 
C)  monosaccharides 
D)  amino acids 
E)  nucleic acids

Question 15

The linear sequence of amino acids in a polypeptide chain is called the ________.

Accepted Answer

A)  primary structure 
B)  secondary structure 
C)  tertiary structure 
D)  quaternary structure 
E)  beta structure 
A)  primary structure 
B)  secondary structure 
C)  tertiary structure 
D)  quaternary structure 
E)  beta structure

Question 16

The bonds that hold atoms together do so through the sharing or transfer of

Accepted Answer

A)  atomic nuclei. 
B)  electrons. 
C)  protons. 
D)  neutrons. 
E)  molecules. 
A)  atomic nuclei. 
B)  electrons. 
C)  protons. 
D)  neutrons. 
E)  molecules.

Question 17

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

Question 18

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.

Question 19

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 20

The combining capacity of an atom or ion is referred to as its valence.

Accepted Answer

A) True 
 B)False

Exam 2: The Nature of Life

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

All hormones and enzymes are lipids.

Peptide bonds link the building blocks of carbohydrates together.

If a plant is wounded, some cells near the wound site begin dividing and seal off the wound. Once the wound is sealed, the cells stop dividing. The criterion /criteria of life illustrated here is/are

The number of protons and electrons in a neutral atom is

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

Response to a stimulus ________.

Protein molecules differ from those of carbohydrates and lipids in having nitrogen present.

If hydrogen atoms are attached to every available attachment point of fatty acid carbon atoms in a fat, the fat is said to be unsaturated.

A solution that is slightly alkaline would have a pH in the range of

An acid is a compound that

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

Which of the following carries a single positive charge?

The basic units or subunits of which a protein is composed are ________.

The linear sequence of amino acids in a polypeptide chain is called the ________.

The bonds that hold atoms together do so through the sharing or transfer of

Which of the following is NOT a form of metabolism?

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

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

The combining capacity of an atom or ion is referred to as its valence.

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