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BIOLOGY PROCTORED EXAM PENN FOSTER
WITH COMPLETE SOLUTIONS.
Question 1: Which of the following is NOT a domain of the 3
domain system?
CORRECT ANSWER : Prokarya
Question 2: An atom of which of the following elements
contains 6 protons and electrons?
CORRECT ANSWER : Carbon
Question 3: ___ is the name for all the chemical processes in the
cell.
CORRECT ANSWER : Metabolism
Question 4: What does a receptor protein do?
CORRECT ANSWER : Allows a specific molecule to bind to it
because of its shape
Question 5: ___ are modifications that make organisms suited to
their way of life.
CORRECT ANSWER : Adaptations
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Question 6: Example of a monosaccharide
CORRECT ANSWER : Glucose
Question 7: What is the MAIN energy molecule in the body?
CORRECT ANSWER : ATP
Question 8: Which of the following molecules is a byproduct of
cellular respiration?
CORRECT ANSWER : Water
Question 9: Which of the following organelles is part of the
endomembrane system?
CORRECT ANSWER : Golgi Apparatus
Question 10: Sunflowers belong to which Kingdom?
CORRECT ANSWER : Plantae
Question 11: An insect is able to walk across the surface of a
pond without sinking because of the:
CORRECT ANSWER : Surface tension of the water
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Question 12: Which of the following structures surrounds the
cytoplasm in a bacterial cell?
CORRECT ANSWER : Plasma membrane
Question 13: Which of the following is TRUE of the scientific
method?
CORRECT ANSWER : Accepted explanation for how the world
works
Question 14: Binomial name given to an organism is composed
of:
CORRECT ANSWER : Genus, Species
Question 15: Crossing-over involves the exchange of genetic
information between:
CORRECT ANSWER : Nonsister chromatids
Question 16: Nucleic acids are composed of monomers called:
CORRECT ANSWER : Nucleotides
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Question 17: Which of the following occurs in the cristae of the
mitochondria?
CORRECT ANSWER : Electron transport chain
Question 18: What does electronegativity mean?
CORRECT ANSWER : Affinity for electrons in a covalent bond
Question 19: If you immerse a living cell in a hypertonic
solution, water will:
CORRECT ANSWER : Move out of the cell
Question 20: Which of the following occurs during the light
reactions of photosynthesis?
CORRECT ANSWER : NADPH production
Question 21: ___ chromosomes are found in pairs, one from
father and mother
CORRECT ANSWER : Homologus
Question 22: Bacteria reproduce by: