Question 1

Based of cellular biochemistry, how many different domains can life be classified into?

Accepted Answer

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

Question 2

Amino acids found in protein in life on Earth are

Accepted Answer

A)  a unequal mixture of left-handed and right-handed molecules, left-handed being most abundant 
B)  all left-handed molecules 
C)  all right-handed molecules 
D)  an equal mixture of left-handed and right-handed molecules 
A)  a unequal mixture of left-handed and right-handed molecules, left-handed being most abundant 
B)  all left-handed molecules 
C)  all right-handed molecules 
D)  an equal mixture of left-handed and right-handed molecules

Question 3

The property of growth and development appears to be

Accepted Answer

A)  a necessary condition, but not a sufficient condition for life 
B)  a sufficient condition, but not a necessary condition for life 
C)  both a necessary condition and a sufficient condition for life 
D)  neither a necessary condition nor a sufficient condition for life 
A)  a necessary condition, but not a sufficient condition for life 
B)  a sufficient condition, but not a necessary condition for life 
C)  both a necessary condition and a sufficient condition for life 
D)  neither a necessary condition nor a sufficient condition for life

Question 4

Evolutionary adaptations are related to changes that occur through time in

Accepted Answer

A)  lipids 
B)  carbohydrates 
C)  proteins 
D)  DNA 
A)  lipids 
B)  carbohydrates 
C)  proteins 
D)  DNA

Question 5

The basic molecular building blocks of proteins are

Accepted Answer

A)  nucleotides 
B)  fatty acids 
C)  amino acids 
D)  monosaccharides 
A)  nucleotides 
B)  fatty acids 
C)  amino acids 
D)  monosaccharides

Question 6

Instead of thymine, RNA uses the nucleotide base

Accepted Answer

A)  guanine 
B)  uracil 
C)  adenine 
D)  cytosine 
A)  guanine 
B)  uracil 
C)  adenine 
D)  cytosine

Question 7

A genus is

Accepted Answer

A)  a group of species that are closely related to one another 
B)  a group of species that are particularly intelligent 
C)  a group of organisms that look similar 
D)  groups of organisms that are genetically distinct 
A)  a group of species that are closely related to one another 
B)  a group of species that are particularly intelligent 
C)  a group of organisms that look similar 
D)  groups of organisms that are genetically distinct

Question 8

Life on Earth can use a variety of different carbon and energy sources. However, the one thing that no organism on Earth can survive without is

Accepted Answer

A)  water in any form: solid, liquid, or gas 
B)  oxygen 
C)  a liquid solvent of any kind 
D)  liquid water 
A)  water in any form: solid, liquid, or gas 
B)  oxygen 
C)  a liquid solvent of any kind 
D)  liquid water

Question 9

The type of reproduction that occurs between human beings is referred to as

Accepted Answer

A)  unsexual 
B)  carnal 
C)  asexual 
D)  sexual 
A)  unsexual 
B)  carnal 
C)  asexual 
D)  sexual

Question 10

What is the complementary sequence corresponding to the DNA fragment AGTCAG?

Accepted Answer

A)  TCAGUC 
B)  UCAGUC 
C)  TCAGTC 
D)  GACTGA 
A)  TCAGUC 
B)  UCAGUC 
C)  TCAGTC 
D)  GACTGA

Question 11

The process of converting a sequence of nucleotides in a section of DNA to a sequence of nucleotides in RNA, as a precursor to protein synthesis is called

Accepted Answer

A)  encryption 
B)  translation 
C)  deciphering 
D)  transcription 
A)  encryption 
B)  translation 
C)  deciphering 
D)  transcription

Question 12

The bacteria species known as Deinococcus radiodurans has evolved to survive extreme levels of

Accepted Answer

A)  cold 
B)  heat 
C)  salinity 
D)  radiation 
A)  cold 
B)  heat 
C)  salinity 
D)  radiation

Question 13

A section of DNA that corresponds to a particular protein is known as a

Accepted Answer

A)  codon 
B)  chromosome 
C)  gene 
D)  genome 
A)  codon 
B)  chromosome 
C)  gene 
D)  genome

Question 14

The most basic definition of life which takes account of the relative importance of the six fundamental properties of living things is that life is something that can

Accepted Answer

A)  grow and develop 
B)  respond to environmental changes 
C)  utilize energy 
D)  reproduce and evolve through natural selection 
A)  grow and develop 
B)  respond to environmental changes 
C)  utilize energy 
D)  reproduce and evolve through natural selection

Question 15

At the root of the tree of life

Accepted Answer

A)  is the common ancestor of all life on Earth 
B)  is the common ancestor of all mammals 
C)  are viruses 
D)  are human beings 
A)  is the common ancestor of all life on Earth 
B)  is the common ancestor of all mammals 
C)  are viruses 
D)  are human beings

Question 16

When humans get cold, they shiver in order to increase their body temperature. Which of the key properties of life is this an example of?

Accepted Answer

A)  growth and development 
B)  reproduction 
C)  order 
D)  response to environment 
A)  growth and development 
B)  reproduction 
C)  order 
D)  response to environment

Question 17

Of the many possible nucleotides, the DNA used in living organisms on Earth uses how many?

Accepted Answer

A)  20 
B)  4 
C)  5 
D)  23 
A)  20 
B)  4 
C)  5 
D)  23

Question 18

The process by which a single cell from a living organism is used to grow an entirely new organism with an identical set of genes is referred to as

Accepted Answer

A)  replication 
B)  twinning 
C)  cloning 
D)  genetic copying 
A)  replication 
B)  twinning 
C)  cloning 
D)  genetic copying

Question 19

Which is NOT a reason that silicon is unsuitable as a building block for life compared to carbon?

Accepted Answer

A)  silicon-silicon bonds are much weaker than carbon-carbon bonds 
B)  silicon does not form multiple bonds with itself, limiting the complexity of molecules it can form 
C)  silicon does not bond with many other elements 
D)  silicon dioxide is a high melting point solid and, hence, cannot be used to transfer silicon atoms like gaseous carbon dioxide can be used to transport carbon atoms 
A)  silicon-silicon bonds are much weaker than carbon-carbon bonds 
B)  silicon does not form multiple bonds with itself, limiting the complexity of molecules it can form 
C)  silicon does not bond with many other elements 
D)  silicon dioxide is a high melting point solid and, hence, cannot be used to transfer silicon atoms like gaseous carbon dioxide can be used to transport carbon atoms

Question 20

A photoautotroph gets its energy from

Accepted Answer

A)  the Sun and its carbon from other organisms 
B)  chemical reactions and its carbon from other organisms 
C)  chemical reactions and its carbon from its environment 
D)  the Sun and its carbon from the its environment 
A)  the Sun and its carbon from other organisms 
B)  chemical reactions and its carbon from other organisms 
C)  chemical reactions and its carbon from its environment 
D)  the Sun and its carbon from the its environment

Based of cellular biochemistry, how many different domains can life be classified into?

Amino acids found in protein in life on Earth are

The property of growth and development appears to be

Evolutionary adaptations are related to changes that occur through time in

The basic molecular building blocks of proteins are

Instead of thymine, RNA uses the nucleotide base

A genus is

Life on Earth can use a variety of different carbon and energy sources. However, the one thing that no organism on Earth can survive without is

The type of reproduction that occurs between human beings is referred to as

What is the complementary sequence corresponding to the DNA fragment AGTCAG?

The process of converting a sequence of nucleotides in a section of DNA to a sequence of nucleotides in RNA, as a precursor to protein synthesis is called

The bacteria species known as Deinococcus radiodurans has evolved to survive extreme levels of

A section of DNA that corresponds to a particular protein is known as a

The most basic definition of life which takes account of the relative importance of the six fundamental properties of living things is that life is something that can

At the root of the tree of life

When humans get cold, they shiver in order to increase their body temperature. Which of the key properties of life is this an example of?

Of the many possible nucleotides, the DNA used in living organisms on Earth uses how many?

The process by which a single cell from a living organism is used to grow an entirely new organism with an identical set of genes is referred to as

Which is NOT a reason that silicon is unsuitable as a building block for life compared to carbon?

A photoautotroph gets its energy from

A Universe of Life

The Science of Life in the Universe

The Universal Context of Life

The Habitability of Earth

The Origin and Evolution of Life on Earth

Searching for Life in Our Solar System

Mars

Life on Jovian Moons

The Nature and Evolution of Habitability

Extrasolar Planets: Their Nature and Potential Habitability

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters

Exam 5: The Nature of Life on Earth

Based of cellular biochemistry, how many different domains can life be classified into?

Amino acids found in protein in life on Earth are

The property of growth and development appears to be

Evolutionary adaptations are related to changes that occur through time in

The basic molecular building blocks of proteins are

Instead of thymine, RNA uses the nucleotide base

A genus is

Life on Earth can use a variety of different carbon and energy sources. However, the one thing that no organism on Earth can survive without is

The type of reproduction that occurs between human beings is referred to as

What is the complementary sequence corresponding to the DNA fragment AGTCAG?

The process of converting a sequence of nucleotides in a section of DNA to a sequence of nucleotides in RNA, as a precursor to protein synthesis is called

The bacteria species known as Deinococcus radiodurans has evolved to survive extreme levels of

A section of DNA that corresponds to a particular protein is known as a

The most basic definition of life which takes account of the relative importance of the six fundamental properties of living things is that life is something that can

At the root of the tree of life

When humans get cold, they shiver in order to increase their body temperature. Which of the key properties of life is this an example of?

Of the many possible nucleotides, the DNA used in living organisms on Earth uses how many?

The process by which a single cell from a living organism is used to grow an entirely new organism with an identical set of genes is referred to as

Which is NOT a reason that silicon is unsuitable as a building block for life compared to carbon?

A photoautotroph gets its energy from

A Universe of Life

The Science of Life in the Universe

The Universal Context of Life

The Habitability of Earth

The Origin and Evolution of Life on Earth

Searching for Life in Our Solar System

Mars

Life on Jovian Moons

The Nature and Evolution of Habitability

Extrasolar Planets: Their Nature and Potential Habitability

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters