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PENN FOSTER INTRO TO BIOLOGY
PROCTORED EXAM QUESTIONS AND
ANSWERS 2025
Which of the following is NOT a domain of the 3 domain
system? - correct answer- Prokarya
An atom of which of the following elements contains 6 protons
and electrons? - correct answer- Carbon
___ is the name for all the chemical processes in the cell. -
correct answer- Metabolism
What does a receptor protein do? - correct answer- Allows a
specific molecule to bind to it because of its shape
___ are modifications that make organisms suited to their way
of life. - correct answer- Adaptations
Example of a monosaccharide - correct answer- Glucose
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What is the MAIN energy molecule in the body? - correct
answer- ATP
Which of the following molecules is a byproduct of cellular
respiration? - correct answer- Water
Which of the following organelles is part of the endomembrane
system? - correct answer- Golgi Apparatus
Sunflowers belong to which Kingdom? - correct answer-
Plantae
An insect is able to walk across the surface of a pond without
sinking because of the: - correct answer- Surface tension of the
water
Which of the following structures surrounds the cytoplasm in a
bacterial cell? - correct answer- Plasma membrane
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Which of the following is TRUE of the scientific method? -
correct answer- Accepted explanation for how the world works
Binomial name given to an organism is composed of: - correct
answer- Genus, Species
Crossing-over involves the exchange of genetic information
between: - correct answer- Nonsister chromatids
Nucleic acids are composed of monomers called: - correct
answer- Nucleotides
Which of the following occurs in the cristae of the
mitochondria? - correct answer- Electron transport chain
What does electronegativity mean? - correct answer- Affinity for
electrons in a covalent bond
If you immerse a living cell in a hypertonic solution, water will: -
correct answer- Move out of the cell
PENN FOSTER INTRO TO BIOLOGY
PROCTORED EXAM QUESTIONS AND
ANSWERS 2025
Which of the following is NOT a domain of the 3 domain
system? - correct answer- Prokarya
An atom of which of the following elements contains 6 protons
and electrons? - correct answer- Carbon
___ is the name for all the chemical processes in the cell. -
correct answer- Metabolism
What does a receptor protein do? - correct answer- Allows a
specific molecule to bind to it because of its shape
___ are modifications that make organisms suited to their way
of life. - correct answer- Adaptations
Example of a monosaccharide - correct answer- Glucose
,2 | Page
What is the MAIN energy molecule in the body? - correct
answer- ATP
Which of the following molecules is a byproduct of cellular
respiration? - correct answer- Water
Which of the following organelles is part of the endomembrane
system? - correct answer- Golgi Apparatus
Sunflowers belong to which Kingdom? - correct answer-
Plantae
An insect is able to walk across the surface of a pond without
sinking because of the: - correct answer- Surface tension of the
water
Which of the following structures surrounds the cytoplasm in a
bacterial cell? - correct answer- Plasma membrane
, 3 | Page
Which of the following is TRUE of the scientific method? -
correct answer- Accepted explanation for how the world works
Binomial name given to an organism is composed of: - correct
answer- Genus, Species
Crossing-over involves the exchange of genetic information
between: - correct answer- Nonsister chromatids
Nucleic acids are composed of monomers called: - correct
answer- Nucleotides
Which of the following occurs in the cristae of the
mitochondria? - correct answer- Electron transport chain
What does electronegativity mean? - correct answer- Affinity for
electrons in a covalent bond
If you immerse a living cell in a hypertonic solution, water will: -
correct answer- Move out of the cell
