ATI TEAS Test -- Science Practice Questions Exam (Latest
Update) Questions and Verified Answers| 100% Correct|
Grade A+
C -- In systemic circulation, the left ventricle supplies oxygen-rich blood to the body, and the right atrium
receives oxygen-poor blood from the body. - answer-Which of the following statements accurately
describes systemic circulation?
A. Supplies oxygen-poor blood from the right ventricle to the lungs
B. Receives oxygen-rich blood from the lungs to the right atrium
C. Supplies oxygen-rich blood from the left ventricle to the body
D. Receives oxygen-poor blood from the body to the left atrium
A - answer-Which of the following is true of enzyme-catalyzed reactions?
A. The enzyme is not consumed in the reaction
B. The substrate is produced in the active site
C. The substrate remains unchanged during the reaction
D. The enzyme raises the activation energy of the reaction
B - answer-A student is assigned the task of measuring the weight of one tennis ball using a scale for
which the zero adjustment on the balance is not working. The student is given three balls and the can in
which they were packaged. Which of the following strategies will provide the best determination of the
correct weight?
A. Weigh each ball separately and average the results.
B. Weigh the empty can, weigh the can with a ball in it, and compute the difference between the two.
C. Weigh the three balls together and divide by three.
D. Weigh each ball separately, adjusting the beam weights from below first, and then from above. Then,
average the results.
,C -- Polarity means water molecules can form shells around both positively and negatively charged
particles. Therefore, water can solubilize ionic and covalent molecules with charge separation, making it
a universal solvent - answer-Which of the following properties of water explains its characterization as
the universal solvent?
A. Kinetic energy of liquid water molecules
B. High specific heat
C. Polarity of water molecules
D. High surface tension
D - answer-Which of the following statements best explains why RNA inside a cell is almost never found
as a single-stranded molecule?
A. Alleles for genes are found in pairs, so their RNAs also pair up.
B. RNA normally exists with its complementary strand in a double helix.
C. RNA and DNA form hybrid pairs for all transcribing parts of the chromosome.
D. Short stretches of complementary sequences can cause RNA to fold back on itself.
C - answer-Which of the following is the circler muscle that regulates the opening and closing of a body
aperture?
A. Fossa
B. Fascia
C. Sphincter
D. Valve
A -- The human body needs iodine, a naturally occurring element, to produce the thyroid hormones
thyroxine and triiodothyronine - answer-Which of the following hormones requires iodine for its
production?
A. Thyroid hormones
, B. Melatonin
C. Parathyroid hormone
D. Calcitonin
B -- The adaptive immune system contains B cells, which differentiate into plasma cells, which produce
antibodies against specific antigens - answer-Which of the following is a characteristic feature of the
adaptive immune system?
A. It uses phagocytes for the ingestion of foreign particles
B. It produces antibodies against a specific antigen in the body
C. It exerts the first response of the immune system against an infection
D. It is comprised of non-specific barriers against a pathogen
A -- Steroids are lipid-soluble. Therefore, they are able to diffuse across the hydrophobic cell membrane
- answer-Which of the following classes of chemical messengers is able to easily diffuse across the cell
membrane?
A. Steroids
B. Interleukins
C. Catecholamines
D. Histamines
B , C - answer-Which of the following statements are true regarding the lymphatic system? (SATA)
A. It is a closed circulatory system
B. The lymph flows from the interstitial spaces toward the heart
C. The lymph transports carbon dioxide to the lungs for expiration
D. The lymphatic systems helps the body to absorb lipids
E. The lymphatic system contains more red blood cells than white blood cells
Update) Questions and Verified Answers| 100% Correct|
Grade A+
C -- In systemic circulation, the left ventricle supplies oxygen-rich blood to the body, and the right atrium
receives oxygen-poor blood from the body. - answer-Which of the following statements accurately
describes systemic circulation?
A. Supplies oxygen-poor blood from the right ventricle to the lungs
B. Receives oxygen-rich blood from the lungs to the right atrium
C. Supplies oxygen-rich blood from the left ventricle to the body
D. Receives oxygen-poor blood from the body to the left atrium
A - answer-Which of the following is true of enzyme-catalyzed reactions?
A. The enzyme is not consumed in the reaction
B. The substrate is produced in the active site
C. The substrate remains unchanged during the reaction
D. The enzyme raises the activation energy of the reaction
B - answer-A student is assigned the task of measuring the weight of one tennis ball using a scale for
which the zero adjustment on the balance is not working. The student is given three balls and the can in
which they were packaged. Which of the following strategies will provide the best determination of the
correct weight?
A. Weigh each ball separately and average the results.
B. Weigh the empty can, weigh the can with a ball in it, and compute the difference between the two.
C. Weigh the three balls together and divide by three.
D. Weigh each ball separately, adjusting the beam weights from below first, and then from above. Then,
average the results.
,C -- Polarity means water molecules can form shells around both positively and negatively charged
particles. Therefore, water can solubilize ionic and covalent molecules with charge separation, making it
a universal solvent - answer-Which of the following properties of water explains its characterization as
the universal solvent?
A. Kinetic energy of liquid water molecules
B. High specific heat
C. Polarity of water molecules
D. High surface tension
D - answer-Which of the following statements best explains why RNA inside a cell is almost never found
as a single-stranded molecule?
A. Alleles for genes are found in pairs, so their RNAs also pair up.
B. RNA normally exists with its complementary strand in a double helix.
C. RNA and DNA form hybrid pairs for all transcribing parts of the chromosome.
D. Short stretches of complementary sequences can cause RNA to fold back on itself.
C - answer-Which of the following is the circler muscle that regulates the opening and closing of a body
aperture?
A. Fossa
B. Fascia
C. Sphincter
D. Valve
A -- The human body needs iodine, a naturally occurring element, to produce the thyroid hormones
thyroxine and triiodothyronine - answer-Which of the following hormones requires iodine for its
production?
A. Thyroid hormones
, B. Melatonin
C. Parathyroid hormone
D. Calcitonin
B -- The adaptive immune system contains B cells, which differentiate into plasma cells, which produce
antibodies against specific antigens - answer-Which of the following is a characteristic feature of the
adaptive immune system?
A. It uses phagocytes for the ingestion of foreign particles
B. It produces antibodies against a specific antigen in the body
C. It exerts the first response of the immune system against an infection
D. It is comprised of non-specific barriers against a pathogen
A -- Steroids are lipid-soluble. Therefore, they are able to diffuse across the hydrophobic cell membrane
- answer-Which of the following classes of chemical messengers is able to easily diffuse across the cell
membrane?
A. Steroids
B. Interleukins
C. Catecholamines
D. Histamines
B , C - answer-Which of the following statements are true regarding the lymphatic system? (SATA)
A. It is a closed circulatory system
B. The lymph flows from the interstitial spaces toward the heart
C. The lymph transports carbon dioxide to the lungs for expiration
D. The lymphatic systems helps the body to absorb lipids
E. The lymphatic system contains more red blood cells than white blood cells
