PAX SCIENCE NLN EXAMS COMPREHENSIVE
STUDY GUIDE 2026
◉ A person who was in an auto accident has formed a blood clot at
the site of the injury. One event that can lead to formation of a blood
clot is that: Answer: ruptured platelets release thromboplastin
◉ 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
◉ In ecological succession, the first living thing to colonize a
hitherto barren area is called a: Answer: pioneer organism
◉ Unicellular organisms that have a nucleus and can swim with the
aid of cilia are examples of: Answer: protozoans
◉ Which of these conditions is associated with smoking? Answer:
emphysema
◉ Which of these quantities is most closely associated with an
object's inertia? Answer: Mass
,◉ Which of these sequences of anatomic organization, from the
simplest level to the most complex, is the correct sequence? Answer:
From tissue, organ, organ system to organism
◉ Which part of the cell structure controls the passage of materials
into and out of the cell? Answer: Plasma membrane
◉ While working in the chemistry laboratory, a student spills dilute
hydrochloric acid on her hand. What is the first action this student
should take? Answer: Flush her hand with large quantities of water
◉ Within a living cell, the oxygen (O2) from a mixture of O2 and
carbon dioxide (CO2) is used up. This creates a concentration
gradient across the cell membrane, drawing O2 across the
membrane from the outside in, a process known as Answer:
Diffusion
◉ You cut your finger rather deeply while slicing an apple. Which of
these actions should you take first? Answer: Wash the wound
continuously with cold running water
◉ 30 students in a class carefully measure the length and width of
20 peanut shells. They also count the number and note the size of
the peanuts inside. This information is recorded on various graphs
showing the numbers of nuts and the different sizes. The collected
, evidence of the peanuts gives the students an idea of the extent of:
Answer: variation within a species
◉ A *tincture* is a solution in which: Answer: alcohol is the solvent
◉ All the glucose filtered from the blood in the glomerulus into the
Bowman's capsule of the kidney nephron is returned to the tissue
fluid while passing along the proximal tubule. This rapid return is
effected by the process of: Answer: active transport
◉ If the night temperature drops 50 degrees, the roadrunner's
internal energy-conservation permits a lowering of body
temperature to: Answer: 94°F
◉ 1 kilogram (kg) of solid X at 10C and 1 kg of solid Y 10C each
absorb 5 joules of heat energy. The final temperatures on X and Y is
15C and 20C, respectively. Compared to X, Y must have a lower:F
Answer: specific heat
◉ 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 below her
diaphragm
STUDY GUIDE 2026
◉ A person who was in an auto accident has formed a blood clot at
the site of the injury. One event that can lead to formation of a blood
clot is that: Answer: ruptured platelets release thromboplastin
◉ 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
◉ In ecological succession, the first living thing to colonize a
hitherto barren area is called a: Answer: pioneer organism
◉ Unicellular organisms that have a nucleus and can swim with the
aid of cilia are examples of: Answer: protozoans
◉ Which of these conditions is associated with smoking? Answer:
emphysema
◉ Which of these quantities is most closely associated with an
object's inertia? Answer: Mass
,◉ Which of these sequences of anatomic organization, from the
simplest level to the most complex, is the correct sequence? Answer:
From tissue, organ, organ system to organism
◉ Which part of the cell structure controls the passage of materials
into and out of the cell? Answer: Plasma membrane
◉ While working in the chemistry laboratory, a student spills dilute
hydrochloric acid on her hand. What is the first action this student
should take? Answer: Flush her hand with large quantities of water
◉ Within a living cell, the oxygen (O2) from a mixture of O2 and
carbon dioxide (CO2) is used up. This creates a concentration
gradient across the cell membrane, drawing O2 across the
membrane from the outside in, a process known as Answer:
Diffusion
◉ You cut your finger rather deeply while slicing an apple. Which of
these actions should you take first? Answer: Wash the wound
continuously with cold running water
◉ 30 students in a class carefully measure the length and width of
20 peanut shells. They also count the number and note the size of
the peanuts inside. This information is recorded on various graphs
showing the numbers of nuts and the different sizes. The collected
, evidence of the peanuts gives the students an idea of the extent of:
Answer: variation within a species
◉ A *tincture* is a solution in which: Answer: alcohol is the solvent
◉ All the glucose filtered from the blood in the glomerulus into the
Bowman's capsule of the kidney nephron is returned to the tissue
fluid while passing along the proximal tubule. This rapid return is
effected by the process of: Answer: active transport
◉ If the night temperature drops 50 degrees, the roadrunner's
internal energy-conservation permits a lowering of body
temperature to: Answer: 94°F
◉ 1 kilogram (kg) of solid X at 10C and 1 kg of solid Y 10C each
absorb 5 joules of heat energy. The final temperatures on X and Y is
15C and 20C, respectively. Compared to X, Y must have a lower:F
Answer: specific heat
◉ 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 below her
diaphragm
