ATI TEAS Science Questions and answers review. 100% accurate. Rated A+
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ATI
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Which of the following illustrates a negative feedback mechanism that occurs in the
human body?
a)the release of insulin from the pancreas in response to an increase in blood sugar
levels
b) the release of glucagon from the pancreas in response to an increase in blood- sugar
levels
c) the rel...
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TEAS Science Questions and answers
review. 100% accurate. Rated A+
Which of the following illustrates a negative feedback mechanism that occurs in the
human body?
a)the release of insulin from the pancreas in response to an increase in blood sugar
levels
b) the release of glucagon from the pancreas in response to an increase in blood- sugar
levels
c) the release of oxytocin resulting in uterine contractions as childbirth is underway
d) chemical reactions that result in coagulation due to fibrin being released - a) the
release of insulin from the pancreas in response to an increase in blood - sugar levels
Pancreatic cells have an abundance of _______ to meet the protein production
demands of the cell
a) collagen
b)vinculin
c)keratin
d) elastin - c) keratin
Anxiety about an upcoming final exam causes a student to experience an increase in
blood pressure, dilation of the pupils, and a dry mouth. Which of the following nervous
system responses is responsible for these physical symptoms?
A. Voluntary
B. Sympathetic
C. Limbic
D. Cognitive - b) sympathetic
Which of the following results from the release of the neurotransmitter dopamine into
the nerve synapse?
a) the presynaptic neuron fires an action potential
,b) Dopamine binds to receptor proteins on the membrane of the postsynaptic cell
c)Dopamine enters the cytoplasm of the postsynaptic cell
d) dopamine cause the postsynaptic nerve cell to contract - b) dopamine binds to
receptor proteins on the membrane of the postsynaptic cell
Which of the following describes the function of the ribosome in a living cell?
a) production of ATP molecules from energy in nutrient molecules
b) Disposal and recycling of damaged or unneeded cell parts
c) Use of genetic information to build specific protein molecules
d) regulation of molecules entering and leaving the cell - c) use of genetic information to
build specific protein molecules
if an intensive property in independent of the amount of the material being measured,
which of the following is an example of intensive property?
a)Length
b)mass
c)volume
d) density - c) Density
Which of the following statements correctly matches a body system with its function?
a) the digestive system facilitates absorption of substances into the bloodstream
b) the respiratory system transports oxygenated blood throughout the lungs and body
c) The excitatory system prevents harmful substances from entering the body
d) The endocrine system transports hormones from place to place within the body - a)
the digestive system facilitates absorption of substance into the blood stream
235
U . ---> . X + 4HE
92 . 2
which of the following is "x" in the reaction above?
a) 239 Pu
94
b) 231 Pu
94
c) 231 Th
90 - c) 231 Th
90
What is the role of the urethra?
,a) to transport urine out of the body
b) to transport the egg to the uterus
c) to connect the kidneys to the bladder
d) to connect the uterus to the outside of the body - a) to transport urine out of the body
Which of the following is the form of energy contained in nutrient molecules and in
ATP's high-energy bonds?
a) mechanical energy
b)potential energy
c)kinetic energy
d)radiation energy - b) potential energy
A researcher decides to repeat an experiment and reassess results first established in
the 1930's about why plants grow toward light. Which of the following is the best reason
for conduction this experiment?
a)plant behavior could have modified due to evolutionary processes since the
experiments were first done
b)new breeds of plants discovered since the 1930's have not yet been shown to have to
same light responses
c)shifts in average temperatures produced by global warming may affect plants in ways
that are not yet understood
d)equipment and methods developed since the 1930's may produce better data and
provide mechanistic detail. - d) equipment and methods developed since the 1930's
may produce better developed data and provide mechanistic detail
Which of the following glands produces melatonin, the hormones that regulates sleep?
a) thyroid
b)hypothalamus
c)pituitary
d) pineal - d) pineal
Which of the following explains why damage to the spleen reduces the production of
granulocytes?
a)damage to the spleen reduces the production of granulocytes
b) damage to the spleen causes massive blood loss
c) damage to the spleen results in loss of clotting ability
d) damage to the spleen results in decreased red blood cell production and maturation -
b) damage to the spleen causes massive blood loss
When an enzyme is degraded into its monomeric structural units, the monomers will be
Which of the following enzymes breaks down complex carbohydrates?
a) amylase
b) pepsin
c)lactase
d)lipase - a) amylase
Which of the following is the purpose of using a control groups in an investigation?
a) to establish a standard for data comparison
b)to provide the correct answer to an investigation
c) to determine the dependent variables
d) to function as a third variable group - a) to establish a standard for data comparison
Which of the following contains the testes?
a) epididymis
b) Mesentery
b)prostate
d) scrotum - d) scrotum
Which of the following glands is exclusively found in males?
a) adrenal
b)parathyroid
c)Cowper's
d) pituitary - c) Cowper's
Which of the following conditions is related to an abnormality in the function of red blood
cells?
a) arrhythmia
b) Anemia
c) hypertension
d) leukemia - b) anemia
Which of the following processes explains why an individual that has suffered a broken
bone and is immobilized for an extended period of time experiences bone mass loss?
a) demineralization
b)muscle atrophy
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