NLN PAX Science Practice Exam 2026/2027
– Complete Questions, Answers & Study
Guide
If the medulla of the brain in a human was damaged, which of these conditions
would most likely result - correct answer-difficulty breathing
Which of these processes is responsible for the recorded production of COy by
yeast cells from sugar solution? - correct answer-Anaerobic respiration
Which of these quantities is a vector quantity? - correct answer-Energy
Which of these quantities is most closely associated with an object's inertia? -
correct answer-mass
Which of these substances contains a nonpolar covalent bond? - correct answer-
O2
Which part of the human central nervous system controls voluntary movements?
- correct answer-cerebrum
, 25 of 50
Within a living cell, the oxygen (O2) from a mixture of O and carbon dioxide (CO2)
is used up. This creates a concentration gradient across the cell membrane,
drawing Oz across the membrane from the outside in, a process known as -
correct answer-Diffusion
A material that settles out of a reaction is termed a(n) - correct answer-emulsion
A quantity that has both magnitude and direction is called a(n) - correct answer-
vector
29 of 50
Cicero and Wozniak used young rats in their experiment instead of older rats
because young rats are - correct answer-Sensitive to alchohol
During exercise, a person's respiratory rate increases due to - correct answer-An
increase in CO2 concentration in the blood.
Enzymes that are involved in biochemical reactions are organic - correct answer-
catalysts
34 of 50
Muscles are attached to bone by which of these structures? - correct answer-
Tendons
– Complete Questions, Answers & Study
Guide
If the medulla of the brain in a human was damaged, which of these conditions
would most likely result - correct answer-difficulty breathing
Which of these processes is responsible for the recorded production of COy by
yeast cells from sugar solution? - correct answer-Anaerobic respiration
Which of these quantities is a vector quantity? - correct answer-Energy
Which of these quantities is most closely associated with an object's inertia? -
correct answer-mass
Which of these substances contains a nonpolar covalent bond? - correct answer-
O2
Which part of the human central nervous system controls voluntary movements?
- correct answer-cerebrum
, 25 of 50
Within a living cell, the oxygen (O2) from a mixture of O and carbon dioxide (CO2)
is used up. This creates a concentration gradient across the cell membrane,
drawing Oz across the membrane from the outside in, a process known as -
correct answer-Diffusion
A material that settles out of a reaction is termed a(n) - correct answer-emulsion
A quantity that has both magnitude and direction is called a(n) - correct answer-
vector
29 of 50
Cicero and Wozniak used young rats in their experiment instead of older rats
because young rats are - correct answer-Sensitive to alchohol
During exercise, a person's respiratory rate increases due to - correct answer-An
increase in CO2 concentration in the blood.
Enzymes that are involved in biochemical reactions are organic - correct answer-
catalysts
34 of 50
Muscles are attached to bone by which of these structures? - correct answer-
Tendons
