PAX PREP VOCAB NLN QUESTIONS AND
ANSWERS 2026 COMPREHENSIVE EXAM
SCRIPT FULL QUESTIONS AND CORRECT
ANSWERS
◉ In classical physics, light is viewed as part of the electromagnetic
spectrum, traveling in the form of transverse waves. Quantum
physics proposes that light is composed of quanta called: Answer:
Photons
◉ In a study on the effect of cocaine on the brains of rates, two
groups of animals were selected. Each day, Group A was injected
with the drug dissolved in water, where as Group B was injected
with water alone. In such a study Group B is included as: Answer: A
control group
◉ If blue light emits electrons from a photosensitive surface, then
electrons must also be emitted by: Answer: Ultraviolet light
◉ Energy that is in an object because of its position is called:
Answer: Potential energy
◉ Ductless glands in the human body secrete: Answer: Hormones
,◉ A substance that increases the speed of a reaction by lowering its
activation energy is called: Answer: A catalyst
◉ A magician rapidly pulls a tablecloth from a table, leaving the
dishes undisturbed. Which of these principles of physics explains
this "trick"? Answer: Objects at rest tent to remain at rest.
◉ Which part of the human central nervous system controls
voluntary movements? Answer: Cerebrum
◉ Which of the processes is responsible for the recorded production
of CO2 by yeast cells from sugar solution? Answer: Anaerobic
respiration
◉ Which of these particles can only be found in the nucleus of an
atom? Answer: Protons and neutrons
◉ Which of these organisms use nitrogen directly from the air?
Answer: Blue-green algae
◉ Which of these hydrocarbons is a member of the benzene family?
Answer: Toluene
,◉ Which of these conditions is associated with smoking? Answer:
Emphysema
◉ Unicellular organism that have a nucleus and can swim with the
aid of cilia are examples of: Answer: Protozoan
◉ The organ that filters metabolic waste from the blood is the:
Answer: Kidney
◉ bending of a wave around an obstacle is known as: Answer:
Diffraction
◉ Heat energy is absorbed in which of these phase changes?
Answer: Br2 (l) -> Br2 (g)
◉ In a varieties of matter, the term heterogeneous may be applied
to: Answer: Mixtures, but not elements or compounds
◉ To sterilize a metal probe in the office, a dentist could use a steam
sterilizer. If unavailable, the next most effective method to sterilize
the instrument would be: Answer: Boiling it in water for 15 minutes
◉ In ecological succession, the first living thing to colonize a
hitherto barren area is called a: Answer: Pioneer organism
, ◉ If the medulla of the brain in a human, which of these conditions
would most likely result? Answer: Difficulty in breathing
◉ Human testes produce: Answer: Spermatozoa
◉ Guard cells which can be found in the leaves of plants are most
closely associated with which of these processes? Answer:
Evaporation of water from the plant
◉ An unknown gas is more dense than air, does not support
combustion, and turns a lime-water solution cloudy. This gas is most
probably: Answer: Carbon dioxide
◉ A woman suddenly chokes on a piece of food and clutches
frantically at her throat. An immediate remedy is to: Answer: Apply
quick, hard pressures successively to her abdomen, just beneath her
diaphragm.
◉ A student focuses sunlight to a point with a thin converging
(convex) lens. Which of these direct measurements can the student
make as a result of this experiment? Answer: The approximate focal
length of the lens
ANSWERS 2026 COMPREHENSIVE EXAM
SCRIPT FULL QUESTIONS AND CORRECT
ANSWERS
◉ In classical physics, light is viewed as part of the electromagnetic
spectrum, traveling in the form of transverse waves. Quantum
physics proposes that light is composed of quanta called: Answer:
Photons
◉ In a study on the effect of cocaine on the brains of rates, two
groups of animals were selected. Each day, Group A was injected
with the drug dissolved in water, where as Group B was injected
with water alone. In such a study Group B is included as: Answer: A
control group
◉ If blue light emits electrons from a photosensitive surface, then
electrons must also be emitted by: Answer: Ultraviolet light
◉ Energy that is in an object because of its position is called:
Answer: Potential energy
◉ Ductless glands in the human body secrete: Answer: Hormones
,◉ A substance that increases the speed of a reaction by lowering its
activation energy is called: Answer: A catalyst
◉ A magician rapidly pulls a tablecloth from a table, leaving the
dishes undisturbed. Which of these principles of physics explains
this "trick"? Answer: Objects at rest tent to remain at rest.
◉ Which part of the human central nervous system controls
voluntary movements? Answer: Cerebrum
◉ Which of the processes is responsible for the recorded production
of CO2 by yeast cells from sugar solution? Answer: Anaerobic
respiration
◉ Which of these particles can only be found in the nucleus of an
atom? Answer: Protons and neutrons
◉ Which of these organisms use nitrogen directly from the air?
Answer: Blue-green algae
◉ Which of these hydrocarbons is a member of the benzene family?
Answer: Toluene
,◉ Which of these conditions is associated with smoking? Answer:
Emphysema
◉ Unicellular organism that have a nucleus and can swim with the
aid of cilia are examples of: Answer: Protozoan
◉ The organ that filters metabolic waste from the blood is the:
Answer: Kidney
◉ bending of a wave around an obstacle is known as: Answer:
Diffraction
◉ Heat energy is absorbed in which of these phase changes?
Answer: Br2 (l) -> Br2 (g)
◉ In a varieties of matter, the term heterogeneous may be applied
to: Answer: Mixtures, but not elements or compounds
◉ To sterilize a metal probe in the office, a dentist could use a steam
sterilizer. If unavailable, the next most effective method to sterilize
the instrument would be: Answer: Boiling it in water for 15 minutes
◉ In ecological succession, the first living thing to colonize a
hitherto barren area is called a: Answer: Pioneer organism
, ◉ If the medulla of the brain in a human, which of these conditions
would most likely result? Answer: Difficulty in breathing
◉ Human testes produce: Answer: Spermatozoa
◉ Guard cells which can be found in the leaves of plants are most
closely associated with which of these processes? Answer:
Evaporation of water from the plant
◉ An unknown gas is more dense than air, does not support
combustion, and turns a lime-water solution cloudy. This gas is most
probably: Answer: Carbon dioxide
◉ A woman suddenly chokes on a piece of food and clutches
frantically at her throat. An immediate remedy is to: Answer: Apply
quick, hard pressures successively to her abdomen, just beneath her
diaphragm.
◉ A student focuses sunlight to a point with a thin converging
(convex) lens. Which of these direct measurements can the student
make as a result of this experiment? Answer: The approximate focal
length of the lens
