PAX SCIENCE NLN LATEST EXAM
UPDATE QUESTIONS AND CORRECT
ANSWERS
A person blows his breath into a straw that is placed in limewater. The
limewater becomes cloudy because the person's breath contains
A.) carbon dioxide.
B.) hydrogen.
C.) oxygen.
D.) nitrogen.
answer: carbon dioxide.
,A circuit contains three 3-ohm (W) resistors in series. What is the
equivalent resistance of this combination?
answer: 9W
An example of an adaptation to prevent water loss in plants is
answer: waxy epidermis
At room temperature, which of these substances exists as diatomic
molecules?
answer: oxygen
Compounds with the same type and number of atoms and the same
chemical bonds but different spatial arrangements of these bonds and
atoms are called
answer: structural isomers.
The calorie and the kilocalorie are units of
answer: energy
The force of gravity on an object is that object's
answer: weight
The light sensitive cells of the eye are called rods and cones. Which of these
layers of the eye are they found in?
answer: retina
The meiotic division of cells leads to the production of cells that
answer: contain half the usual number of chromosomes.
The most probable area of study that would show the prevalence of mental
illness in mid-Manhattan is that of
answer: epidemiology
The normal boiling temperature for water is 100° when measured on which
of these scales?
answer: celsius
,What is the pH of a solution whose H+ ion concentration is 1 x 10-2 mole
per liter?
answer: 2
When a column of air is vibrating at the same rate as a tuning fork, the
process is referred to as
answer: resonance
When a population is in Hardy-Weinberg equilibrium, which of these
conditions must be present?
answer: The population is isolated from other populations.
When three resistors of 10.0 ohms each are placed in series, the total
resistance is
answer: 30.0 ohms
Which of these changes occurs in the kidneys when a person becomes
dehydrated?
answer: The filtration rate of water remains constant and the reabsorption of
water increases.
Which of these could be stopped by a sheet of paper?
answer: Alpha particle
Which of these is an example of a simple machine?
answer: lever, pulley, inclined plane
Which of these organisms might be found in contaminated well water?
answer: Giardia
Which of these processes occurs at a neuromuscular junction?
answer: Impulse transmission.
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5
joules of heat energy. The final temperatures of X and Y are 15°C and
20°C, respectively. Compared to X, Y must have a lower
answer: specific heat
, A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a
slide containing a large number of swimming paramecium. Under this
condition, which of these behaviors of the paramecia will be observed?
answer: They will eventually all swim away from the ammonium hydroxide.
A physician measures the pulse and blood pressure (BP) of all patients on a
routine basis. Which of these measurements show the normal BP values for
a resting adult patient?
answer: 120/.80 mmHg
Which of these processes is responsible for the recorded production of CO2
by yeast cells from sugar solution?
answer: anaerobic respiration
A physician measures the pulse and blood pressure (BP) of all patients on a
routine basis. Which of these measurements show the normal BP values for
a resting adult patient?
A.) 125/95 mm Hg
B.) 120/80 mm Hg
C.) 100/80 mm Hg
D.) 72/120 mm Hg
answer: 120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her
throat. An immediate remedy is to
A.) have her bend forward and tell her to cough.
B.) insert a finger or a blunt object toward the back of the mouth.
C.) apply quick, hard pressures successively to her abdomen, just beneath
her diaphragm.
D.) phone "emergency" for help.
UPDATE QUESTIONS AND CORRECT
ANSWERS
A person blows his breath into a straw that is placed in limewater. The
limewater becomes cloudy because the person's breath contains
A.) carbon dioxide.
B.) hydrogen.
C.) oxygen.
D.) nitrogen.
answer: carbon dioxide.
,A circuit contains three 3-ohm (W) resistors in series. What is the
equivalent resistance of this combination?
answer: 9W
An example of an adaptation to prevent water loss in plants is
answer: waxy epidermis
At room temperature, which of these substances exists as diatomic
molecules?
answer: oxygen
Compounds with the same type and number of atoms and the same
chemical bonds but different spatial arrangements of these bonds and
atoms are called
answer: structural isomers.
The calorie and the kilocalorie are units of
answer: energy
The force of gravity on an object is that object's
answer: weight
The light sensitive cells of the eye are called rods and cones. Which of these
layers of the eye are they found in?
answer: retina
The meiotic division of cells leads to the production of cells that
answer: contain half the usual number of chromosomes.
The most probable area of study that would show the prevalence of mental
illness in mid-Manhattan is that of
answer: epidemiology
The normal boiling temperature for water is 100° when measured on which
of these scales?
answer: celsius
,What is the pH of a solution whose H+ ion concentration is 1 x 10-2 mole
per liter?
answer: 2
When a column of air is vibrating at the same rate as a tuning fork, the
process is referred to as
answer: resonance
When a population is in Hardy-Weinberg equilibrium, which of these
conditions must be present?
answer: The population is isolated from other populations.
When three resistors of 10.0 ohms each are placed in series, the total
resistance is
answer: 30.0 ohms
Which of these changes occurs in the kidneys when a person becomes
dehydrated?
answer: The filtration rate of water remains constant and the reabsorption of
water increases.
Which of these could be stopped by a sheet of paper?
answer: Alpha particle
Which of these is an example of a simple machine?
answer: lever, pulley, inclined plane
Which of these organisms might be found in contaminated well water?
answer: Giardia
Which of these processes occurs at a neuromuscular junction?
answer: Impulse transmission.
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5
joules of heat energy. The final temperatures of X and Y are 15°C and
20°C, respectively. Compared to X, Y must have a lower
answer: specific heat
, A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a
slide containing a large number of swimming paramecium. Under this
condition, which of these behaviors of the paramecia will be observed?
answer: They will eventually all swim away from the ammonium hydroxide.
A physician measures the pulse and blood pressure (BP) of all patients on a
routine basis. Which of these measurements show the normal BP values for
a resting adult patient?
answer: 120/.80 mmHg
Which of these processes is responsible for the recorded production of CO2
by yeast cells from sugar solution?
answer: anaerobic respiration
A physician measures the pulse and blood pressure (BP) of all patients on a
routine basis. Which of these measurements show the normal BP values for
a resting adult patient?
A.) 125/95 mm Hg
B.) 120/80 mm Hg
C.) 100/80 mm Hg
D.) 72/120 mm Hg
answer: 120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her
throat. An immediate remedy is to
A.) have her bend forward and tell her to cough.
B.) insert a finger or a blunt object toward the back of the mouth.
C.) apply quick, hard pressures successively to her abdomen, just beneath
her diaphragm.
D.) phone "emergency" for help.
