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TEAS Science/151 Questions and Answers/100% Accurate
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TEAS Science/151 Questions andAnswers/100% Accurate
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) nuclei
b)mitochondria
c)lysosomes
d) rough endoplasmic reticulum - -d) rough endoplasmic reticulum
-Nails are made of a protein called ____
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
a)monosaccharides
b)fatty acids
c)nucleotides
d)amino acids - -d) amino acids
-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
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