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NLN NEX SCIENCE ENTRANCE EXAM
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NLN NEX SCIENCE ENTRANCE EXAM WITH QUESTIONS ANS CORRECT ANSWERS RECENT UPDATES.
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NLN NEX SCIENCE ENTRANCE EXAMFOR MORE INFORMATION EMAIL:
In the diagram, the area labeled 2 is part of which layer of the eye?
Fibrous tunic
Sensory tunic
Reticular tunic
Vascular tunic
After playing a strenous tennis match, a player experiences increased heart rate, rapid
breathing, and dilated pupils. Which branch of the nervous system is responsible for these
responses?
Autonomic nervous system
Central nervous system
Sympathetic nervous system
Parasympathetic nervous system
Amnesia in humans is the loss of memory. Which of these parts of the brain has been
affected when someone is suffering from amnesia cuased by head trauma?
Medulla oblongata
Spinal Cord
Cerebellum
Cerebral Cortex
If a person cannot stand on tiptoes, which muscles may be too weak?
Rectus femoris and vastus medialis
Pectoralis major and subclavius
Gastronemius and soleus
Biceps femoris and semimembranosus
Is where most of the cell's chemical reactions take place
All living cells contain cytoplasm, which is important b/c it...
Carries hereditary traits
,Produces protein
Is where most of the cell's chemical reactions take place
Controls what moves in and out of the cell
Most vertebrates have cone cells in their eyes, which distinguish colors in daylight. The
rods are more sensitive to light, but do not distinguish colors. If a mamal is nocturnal, it has
likely evolved to have...
As many cones as there are rods to capture the colors at dusk/dawn
An absence of cones since nocturnal mammals only need rods to see black/white at night
Fewer cones and a greater concentration of rods to collect the minimal light for night
vision.
More cones than rods to enable them to see the muted colors at night.
Whithin a living cell, the oxygen from a mixture of oxygen and carbon dioxide is used up.
This creates a concentration gradient across the cell membrane that draws in oxygen
across the cell membrane from the outside to the inside of the cell. This process is known
by which of these terms?
Diffusion
Active transport
Osmosis
Cellular respiration
As part of the human immune response, which of these cells are responsible for producing
antibodies?
Macrophages
Suppressor cells
Helper cells
Lymphocytes
When a person nods their head yes/no, which joint allows for that movement?
Coxal join
Atlanto-occipital joint
Temporomandibular joint
Glenohumeral joint
What structure within the area labeled as B contains the sensory receptors for dynamic
equilibrium?
Macula sacculi
Spiral organ
Crista ampullaris
Macula utriculi
, If a person has a lateral curvature of the spine, which anatomical structure is affected?
Thoracic cage
Pelvic girdle
Vertebral column
Pectoral girdle
Charles Darwin's theory of evolution suggests that the reason for the various differences
between species is a result of..
The use or disuse of body structures
Exposure to mutagenic agents
Natural selection
Acquired characteristics
Which of these structures carries sperm cells from the testes to the lower part of the
abdomen?
Urethra
Seminiferous tubules
Vas deferens
Epididymis
(the region of the curve where pH changes little with each addition of a compound such as
NaOH is the buffer region, a buffer resists changes in pH. The excess acid region is relevant
to a titration of a weak base - strong acid titration.)
The titration curve shows a weak acid - strong base. What does the region in Box B
represent?
Equivalence point
Excess acid region
Buffer region
Excess base region
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