ATI TEAS – SCIENCE PROTOCORED
EXAM 2025 | PRACTICE WITH 300
QUESTIONS AND VERIFIED
CORRECT ANSWERS | GRADED A+ |
PROFESSOR VERIFIED
What does bicarbonate from the pancreas do?
- ANS -Bicarbonate neutralizes the stomach acid entering the duodenum. It also
triggers the release of pancreatic enzymes to further aid chemical digestion in the
small intestine.
What does cholecystokinin (CCK) do?
- ANS -It is released from the duodenum and initiates bile release from the gall
bladder, decreases motility and acid production by the stomach.
Where does absorption of nutrients occur in the small intestine?
- ANS -Absorption of nutrients occurs through the villi
,What do the villi and microvilli do?
- ANS -They increase the surface are in the small intestine to increase the area
from which absorption can take place.
what does each villus contain?
- ANS -arterioles and lymphatic cessils through which absorption occurs.
Where does most of the water get absorbed?
- ANS -The small intestine absorbs about 80% of the water.
What does the large intestine do with the remaining water and how does it do it?
- ANS -The large intestine resorbs water through osmosis along with ions
reclaimed from feces.
What occurs in the colon?
- ANS -Additional absorption of water, affecting water and electrolyte balance and
the storage and formation of feces.
What are the two types of immunity?
- ANS -There is innate and adaptive immunity
What is innate immunity?
- ANS -Innate immunity provides a nonspecific type of defense that is the same
every time
,What is the first line of defense for innate immunity?
- ANS -The first line of defense includes physical and chemical barriers, such as
skin, mucous membranes and digestive enzymes.
What is the second line of defense of nonspecific defenses?
- ANS -The second line of defense includes fever, inflammation, phagocytosis,
natural killer cells, interferons, chemotaxis and release of cytokines
What are the four cardinal signs of inflammation?
- ANS -The four cardinal signs are redness, heat, swelling and pan.
What is phagocytosis?
- ANS -Phagocytosis is engulfing of pathogens by white blood cells.
What do natural killer cells produce, what are they, and what do they target?
- ANS -NK cells produce PERFORINS, which are pore-forming proteins, that
target cancer and virus cells.
What do perforins cause cells to do?
- ANS -lyce or rupture
What are interferons?
- ANS -Interferons are the body's response to a viral infection.
, What do interferons do?
- ANS -Interferons prevent replication of the virus after 7 to 10 days, and activate
macrophages and NK cells
What is chemotaxis?
- ANS -IT is the method by which the leukocytes respond to damaged body tissues.
How do the leukocytes respond to damaged body tissues?
- ANS -Chemotaxis
What are cytokines?
- ANS -chemical messengeres released by damaged tissues.
What are the two functions of epithelial tissue?
- ANS -It can provide covering or produce secretions.
What does epithelial tissue depend on in order to get food and oxygen? Why?
- ANS -Epithelial tissue depends on the diffusion from nearby capillaries for food
and oxygen because it does not have a blood supply.
Where is simple epithelium found in the body?
- ANS -Simple epithelium is found in places where absorption, secretion, and
filtration occur.
EXAM 2025 | PRACTICE WITH 300
QUESTIONS AND VERIFIED
CORRECT ANSWERS | GRADED A+ |
PROFESSOR VERIFIED
What does bicarbonate from the pancreas do?
- ANS -Bicarbonate neutralizes the stomach acid entering the duodenum. It also
triggers the release of pancreatic enzymes to further aid chemical digestion in the
small intestine.
What does cholecystokinin (CCK) do?
- ANS -It is released from the duodenum and initiates bile release from the gall
bladder, decreases motility and acid production by the stomach.
Where does absorption of nutrients occur in the small intestine?
- ANS -Absorption of nutrients occurs through the villi
,What do the villi and microvilli do?
- ANS -They increase the surface are in the small intestine to increase the area
from which absorption can take place.
what does each villus contain?
- ANS -arterioles and lymphatic cessils through which absorption occurs.
Where does most of the water get absorbed?
- ANS -The small intestine absorbs about 80% of the water.
What does the large intestine do with the remaining water and how does it do it?
- ANS -The large intestine resorbs water through osmosis along with ions
reclaimed from feces.
What occurs in the colon?
- ANS -Additional absorption of water, affecting water and electrolyte balance and
the storage and formation of feces.
What are the two types of immunity?
- ANS -There is innate and adaptive immunity
What is innate immunity?
- ANS -Innate immunity provides a nonspecific type of defense that is the same
every time
,What is the first line of defense for innate immunity?
- ANS -The first line of defense includes physical and chemical barriers, such as
skin, mucous membranes and digestive enzymes.
What is the second line of defense of nonspecific defenses?
- ANS -The second line of defense includes fever, inflammation, phagocytosis,
natural killer cells, interferons, chemotaxis and release of cytokines
What are the four cardinal signs of inflammation?
- ANS -The four cardinal signs are redness, heat, swelling and pan.
What is phagocytosis?
- ANS -Phagocytosis is engulfing of pathogens by white blood cells.
What do natural killer cells produce, what are they, and what do they target?
- ANS -NK cells produce PERFORINS, which are pore-forming proteins, that
target cancer and virus cells.
What do perforins cause cells to do?
- ANS -lyce or rupture
What are interferons?
- ANS -Interferons are the body's response to a viral infection.
, What do interferons do?
- ANS -Interferons prevent replication of the virus after 7 to 10 days, and activate
macrophages and NK cells
What is chemotaxis?
- ANS -IT is the method by which the leukocytes respond to damaged body tissues.
How do the leukocytes respond to damaged body tissues?
- ANS -Chemotaxis
What are cytokines?
- ANS -chemical messengeres released by damaged tissues.
What are the two functions of epithelial tissue?
- ANS -It can provide covering or produce secretions.
What does epithelial tissue depend on in order to get food and oxygen? Why?
- ANS -Epithelial tissue depends on the diffusion from nearby capillaries for food
and oxygen because it does not have a blood supply.
Where is simple epithelium found in the body?
- ANS -Simple epithelium is found in places where absorption, secretion, and
filtration occur.
