Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
1). Which of the following is a false statement regarding
DNA?
A) Each chromosome has one very long DNA molecule with
hundreds of thousands of genes.
B) Every cell is enclosed by a membrane.
C) Every cell uses DNA as its genetic information.
D) All forms of life are composed of cells that have a
membrane-enclosed nucleus.
E) DNA is the unit of inheritance that is transmitted from
parent to offspring. - Correct Answers ✅D) All forms of life
are composed of cells that have a membrane-enclosed
nucleus.
In terms of the hierarchical organization of life, a bacterium is
at the __________ level of organization, whereas a human is at
the __________ level of organization.
A) single-celled organism; multicellular organism
B) single organelle; organism
C) organelle; organ system
D) single tissue; multicellular organism
E) tissue; organism - Correct Answers ✅A) single-celled
organism; multicellular organism
The main source of energy for producers in an ecosystem is
,Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
A) light energy.
B) kinetic energy.
C) thermal energy.
D) chemical energy.
E) ATP. - Correct Answers ✅A) light energy.
The lowest level of biological organization that can perform
all the activities required for life is the
A) organelle-for example, a chloroplast.
B) cell-for example, a skin cell.
C) tissue-for example, nervous tissue.
D) organ system-for example, the reproductive system.
E) organism-for example, an amoeba, dog, human, or maple
tree. - Correct Answers ✅B) cell-for example, a skin cell.
A type of protein critical to all cells is organic catalysts called
A) feedback activators.
B) feedback inhibitors.
C) enzymes.
D) metabolites.
E) nutrients. - Correct Answers ✅C) enzymes.
,Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
Prokaryotes are classified as belonging to two different
domains. What are the domains?
A) Bacteria and Eukarya
B) Archaea and Monera
C) Eukarya and Monera
D) Bacteria and Protista
E) Bacteria and Archaea - Correct Answers ✅E) Bacteria
and Archaea
Which of these provides evidence of the common ancestry of
all life?
A) the ubiquitous use of catalysts by living systems
B) the universality of the genetic code
C) the structure of the nucleus
D) the structure of cilia
E) the structure of chloroplasts - Correct Answers ✅B) the
universality of the genetic code
What is a hypothesis?
A) the same thing as an unproven theory
B) a tentative explanation that can be tested and is falsifiable
C) a verifiable observation sensed directly, or sensed
indirectly with the aid of scientific instrumentation
, Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
D) a fact based on qualitative data that is testable
E) a fact based on quantitative data that is falsifiable -
Correct Answers ✅B) a tentative explanation that can be
tested and is falsifiable
About 25 of the 92 natural elements are known to be
essential to life. Which four of these 25 elements make up
approximately 96% of living matter?
A) carbon, sodium, chlorine, nitrogen
B) carbon, sulfur, phosphorus, hydrogen
C) oxygen, hydrogen, calcium, sodium
D) carbon, hydrogen, nitrogen, oxygen
E) carbon, oxygen, sulfur, calcium - Correct Answers ✅D)
carbon, hydrogen, nitrogen, oxygen
The mass number of an element can be easily approximated
by adding together the number of __________ in an atom of
that element.
A) protons and neutrons
B) energy levels
C) protons and electrons
D) neutrons and electrons
E) isotopes - Correct Answers ✅A) protons and neutrons
Exam (ANSWERED) CORRECTLY TO
SCORE A+
1). Which of the following is a false statement regarding
DNA?
A) Each chromosome has one very long DNA molecule with
hundreds of thousands of genes.
B) Every cell is enclosed by a membrane.
C) Every cell uses DNA as its genetic information.
D) All forms of life are composed of cells that have a
membrane-enclosed nucleus.
E) DNA is the unit of inheritance that is transmitted from
parent to offspring. - Correct Answers ✅D) All forms of life
are composed of cells that have a membrane-enclosed
nucleus.
In terms of the hierarchical organization of life, a bacterium is
at the __________ level of organization, whereas a human is at
the __________ level of organization.
A) single-celled organism; multicellular organism
B) single organelle; organism
C) organelle; organ system
D) single tissue; multicellular organism
E) tissue; organism - Correct Answers ✅A) single-celled
organism; multicellular organism
The main source of energy for producers in an ecosystem is
,Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
A) light energy.
B) kinetic energy.
C) thermal energy.
D) chemical energy.
E) ATP. - Correct Answers ✅A) light energy.
The lowest level of biological organization that can perform
all the activities required for life is the
A) organelle-for example, a chloroplast.
B) cell-for example, a skin cell.
C) tissue-for example, nervous tissue.
D) organ system-for example, the reproductive system.
E) organism-for example, an amoeba, dog, human, or maple
tree. - Correct Answers ✅B) cell-for example, a skin cell.
A type of protein critical to all cells is organic catalysts called
A) feedback activators.
B) feedback inhibitors.
C) enzymes.
D) metabolites.
E) nutrients. - Correct Answers ✅C) enzymes.
,Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
Prokaryotes are classified as belonging to two different
domains. What are the domains?
A) Bacteria and Eukarya
B) Archaea and Monera
C) Eukarya and Monera
D) Bacteria and Protista
E) Bacteria and Archaea - Correct Answers ✅E) Bacteria
and Archaea
Which of these provides evidence of the common ancestry of
all life?
A) the ubiquitous use of catalysts by living systems
B) the universality of the genetic code
C) the structure of the nucleus
D) the structure of cilia
E) the structure of chloroplasts - Correct Answers ✅B) the
universality of the genetic code
What is a hypothesis?
A) the same thing as an unproven theory
B) a tentative explanation that can be tested and is falsifiable
C) a verifiable observation sensed directly, or sensed
indirectly with the aid of scientific instrumentation
, Biology in Focus/Bio 101 NVCC Final
Exam (ANSWERED) CORRECTLY TO
SCORE A+
D) a fact based on qualitative data that is testable
E) a fact based on quantitative data that is falsifiable -
Correct Answers ✅B) a tentative explanation that can be
tested and is falsifiable
About 25 of the 92 natural elements are known to be
essential to life. Which four of these 25 elements make up
approximately 96% of living matter?
A) carbon, sodium, chlorine, nitrogen
B) carbon, sulfur, phosphorus, hydrogen
C) oxygen, hydrogen, calcium, sodium
D) carbon, hydrogen, nitrogen, oxygen
E) carbon, oxygen, sulfur, calcium - Correct Answers ✅D)
carbon, hydrogen, nitrogen, oxygen
The mass number of an element can be easily approximated
by adding together the number of __________ in an atom of
that element.
A) protons and neutrons
B) energy levels
C) protons and electrons
D) neutrons and electrons
E) isotopes - Correct Answers ✅A) protons and neutrons
