TEAS practice test (ATI) questions and
answers 2024\2025 A+ Grade
which of the following helps to prevent pathogens from invading the body?
a) histamines
b)mucus
c)t-cells
d)macrophages
- correct answer mucus, skin, secretion (first step).
A bacteria cell enters the body through a cut in the skin. Which of the following describes the immune
response that would occur next?
a) cytotoxic t-cells
b)helper t-cells are activated
c)histamines are released
d) antigens are released
- correct answer histamines (inflammatory response) are released
Which of the following types of cells produce antibodies?
a) T-cell
b)plasma-cells
c)memory cells
d)macrophages
- correct answer plasma-cells (The helper T cell induces
,the B cell to multiply rapidly into secretory cells called "plasma cells." These plasma cells will then
produce large amounts of an antibody that can bind the antigen.)
which of the following best describes the purpose of a vaccine?
A.)To produce extra inflammatory responses such as the release of histamines
B.)To practice passive immunity
C.)To produce antibodies in case of future infection
D.)To increase macrophage production
- correct answer to produce antibodies in case of future infection. (Vaccinations introduce antigens,
which are weakened or killed, to elicit an immune response.)
Which of the following parts of the male genitourinary system also transports sperm?
A. Ureter
B. Urethra
C. Uterus
D. Urinary bladder
- correct answer urethra (In males, the urethra passes through the penis and also carries sperm. Females
have a much shorter urethra)
Which of the following waste products from digestion does the kidney remove?
A. Nitrogen
B. Sodium chloride
C. Protein
D. Carbon
- correct answer nitrogen nitrogenous waste from protein digestion is toxic and must be removed
because it will form ammonia.
Which of the following best describes the outcome if the kidneys stopped functioning?
A. Blood would increase its carbon dioxide concentration.
B. Blood would fill with waste and the human body would not be able to maintain homeostasis.
C. The kidneys would fill with urine.
,D. The frequency in which a human excretes urine would increase.
- correct answer blood would fill with waste and the human body would not be able to maintain
homeostasis.
Which of the following structures is the functional unit of the kidney?
A. Renal capillaries
B. Glomerulus
C. Nephron
D. Cortex
- correct answer nephron (The functional unit of the kidney is the nephron.)
In two to three sentences, explain the purpose of blood pressure in the kidney.
- correct answer The pressure of the blood helps the glomerulus
filter out wastes and return vital nutrients through the renal vein to the blood. Nephrons are a system of
microscopic tubes that use
various pressure levels to remove wastes and reabsorb important molecules and water.
Which of the following lists the primary parts of the heart?
A. Blood cells
B. Muscle tissue split into two chambers
C. Muscle tissue split into four chambers
D. Four ventricles
- correct answer muscle tissue split into four chambers
Which of the following blood components is responsible for transporting oxygen?
A. Red blood cells
B. Plasma
C. Dissolved gases
D. Leukocytes
- correct answer Red blood cells ( RBC contain hemoglobin and transport oxygen from the lungs to the
rest of the body.)
, Which of the following chambers pumps blood toward the lungs?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
- correct answer RV. (The right ventricle pumps the blood toward the lungs, where it picks up oxygen
and loses carbon dioxide.)
Which of the following statements best describes the function of veins?
A. Veins carry deoxygenated blood.
B. Veins carry oxygenated blood.
C. Veins carry blood back to the heart.
D. Veins carry blood away from the heart.
- correct answer (C) Then, the oxygenated blood
returns to the heart through veins.
In two to three sentences, describe two chambers of the heart that have thicker walls. Why would
these chambers be thicker?
- correct answer right and left ventricles was thick-walled because they pump blood towards the whole
body which needs more energy then pumping blood into the heart itself.
Which of the following describes the function of the ribosome?
a. Protein synthesis
b. Energy production
c. Cell movement
d. Storage of molecules
- correct answer protein synthesis
Because muscle cells require large amounts of energy to function correctly, which organelles would
be prevalent in those types of cells?
a. Ribosomes
answers 2024\2025 A+ Grade
which of the following helps to prevent pathogens from invading the body?
a) histamines
b)mucus
c)t-cells
d)macrophages
- correct answer mucus, skin, secretion (first step).
A bacteria cell enters the body through a cut in the skin. Which of the following describes the immune
response that would occur next?
a) cytotoxic t-cells
b)helper t-cells are activated
c)histamines are released
d) antigens are released
- correct answer histamines (inflammatory response) are released
Which of the following types of cells produce antibodies?
a) T-cell
b)plasma-cells
c)memory cells
d)macrophages
- correct answer plasma-cells (The helper T cell induces
,the B cell to multiply rapidly into secretory cells called "plasma cells." These plasma cells will then
produce large amounts of an antibody that can bind the antigen.)
which of the following best describes the purpose of a vaccine?
A.)To produce extra inflammatory responses such as the release of histamines
B.)To practice passive immunity
C.)To produce antibodies in case of future infection
D.)To increase macrophage production
- correct answer to produce antibodies in case of future infection. (Vaccinations introduce antigens,
which are weakened or killed, to elicit an immune response.)
Which of the following parts of the male genitourinary system also transports sperm?
A. Ureter
B. Urethra
C. Uterus
D. Urinary bladder
- correct answer urethra (In males, the urethra passes through the penis and also carries sperm. Females
have a much shorter urethra)
Which of the following waste products from digestion does the kidney remove?
A. Nitrogen
B. Sodium chloride
C. Protein
D. Carbon
- correct answer nitrogen nitrogenous waste from protein digestion is toxic and must be removed
because it will form ammonia.
Which of the following best describes the outcome if the kidneys stopped functioning?
A. Blood would increase its carbon dioxide concentration.
B. Blood would fill with waste and the human body would not be able to maintain homeostasis.
C. The kidneys would fill with urine.
,D. The frequency in which a human excretes urine would increase.
- correct answer blood would fill with waste and the human body would not be able to maintain
homeostasis.
Which of the following structures is the functional unit of the kidney?
A. Renal capillaries
B. Glomerulus
C. Nephron
D. Cortex
- correct answer nephron (The functional unit of the kidney is the nephron.)
In two to three sentences, explain the purpose of blood pressure in the kidney.
- correct answer The pressure of the blood helps the glomerulus
filter out wastes and return vital nutrients through the renal vein to the blood. Nephrons are a system of
microscopic tubes that use
various pressure levels to remove wastes and reabsorb important molecules and water.
Which of the following lists the primary parts of the heart?
A. Blood cells
B. Muscle tissue split into two chambers
C. Muscle tissue split into four chambers
D. Four ventricles
- correct answer muscle tissue split into four chambers
Which of the following blood components is responsible for transporting oxygen?
A. Red blood cells
B. Plasma
C. Dissolved gases
D. Leukocytes
- correct answer Red blood cells ( RBC contain hemoglobin and transport oxygen from the lungs to the
rest of the body.)
, Which of the following chambers pumps blood toward the lungs?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
- correct answer RV. (The right ventricle pumps the blood toward the lungs, where it picks up oxygen
and loses carbon dioxide.)
Which of the following statements best describes the function of veins?
A. Veins carry deoxygenated blood.
B. Veins carry oxygenated blood.
C. Veins carry blood back to the heart.
D. Veins carry blood away from the heart.
- correct answer (C) Then, the oxygenated blood
returns to the heart through veins.
In two to three sentences, describe two chambers of the heart that have thicker walls. Why would
these chambers be thicker?
- correct answer right and left ventricles was thick-walled because they pump blood towards the whole
body which needs more energy then pumping blood into the heart itself.
Which of the following describes the function of the ribosome?
a. Protein synthesis
b. Energy production
c. Cell movement
d. Storage of molecules
- correct answer protein synthesis
Because muscle cells require large amounts of energy to function correctly, which organelles would
be prevalent in those types of cells?
a. Ribosomes
