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TEAS 7 SCIENCE PRACTICE QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED GRADED A++
Terms in this set (195)
lysosome
Which organelle functions similarly to a Explanation: The lysosome functions similarly to a city's sanitation department
city's sanitation department? because it is responsible for breaking down waste materials, unwanted
substances, and cellular debris. Lysosomes contain enzymes that digest these
materials, similar to how a sanitation department removes waste from a city.
What is the primary role of the nucleolus drafting ribosomal RNA and assembling ribosomal proteins
within the cell?
as the cell's FedEx hub because it processes, packages, and ships proteins
How is the Golgi Apparatus best and lipids to their proper destinations within or outside the cell. Similar to how a
described? FedEx hub sorts and sends packages to different locations, the Golgi apparatus
modifies and directs the movement of cellular products.
Which organelle is responsible for ribosomes
decoding messenger RNA's blueprint and
assembling needed proteins?
What function does the mitochondria generating energy (ATP)
serve within a cell?
What is the primary role of the rough crafting proteins
endoplasmic reticulum?
What is the main function of To control the one-way flow of blood.
atrioventricular valves in the heart?
Which of the following is NOT D. They prevent backflow of blood
a characteristic of arteries?
A. They are resilient and flexible. ***Veins prevent backflow of blood, not arteries.
B. They accommodate high-
pressure blood.
C. They facilitate the diffusion of
oxygen and nutrients.
D.They prevent backflow of blood.
What is the role of plasma in the blood? It accommodates proteins, electrolytes, and cells.
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What is the function of the systemic It carries oxygen-rich blood to the body tissues.
circuit in the body's circulation?
What happens during the systole phase The heart squeezes, shuttling blood around.
of the cardiac cycle?
Which statement is NOT correct about D.
blood pressure? When the heart beats faster (or "revs up"), the blood pressure typically increases
A. It dictates the force of blood within the because the heart is pumping blood more frequently, which can cause more
body's tubes. pressure within the arteries. So, blood pressure generally increases when the
B.Its numerical reading reflects heart rate rises, not decreases.
the heart's push.
C. It increases when the heart slows its
dance.
D.It decreases when the heart revs up its
dance moves.
What is the function of white blood cells They generate antibodies and activate immune responses.
in the blood?
What might be a possible cause of Constricted tubes due to sticky substances.
hypertension, or high blood pressure?
What analogy is used to help remember Arteries are like superheroes strong and flexible; veins are like the humble
the difference between arteries and sidekicks with check-valve gadgets.
veins?
What happens in the small intestine The small intestine absorbs all types of nutrients from the chyme
during the digestion process?
Which cells in the stomach produce Chief cells
pepsin and gastric lipase to break down
protiens and fats?
What does the pancreatic bicarbonate do Helps neutralize the acidity of chyme
in the digestive system?
Which hormone is responsible for Leptin
generating satisfaction and
signaling satiety?
What role does hydrochloric acid It transforms pepsinogen into pepsin and fights harmful bacteria
(HCl) play in the stomach?
The absorption of nutrients in the small Brush border enzymes that complete the digestion of proteins, carbs, and fats.
intestine is facilitated by:
How is glucose managed in the body? Insulin aids cells in storing excess glucose as glycogen
Which hormone slows down the Somatostatin slows down digestion
secretory stomach cells?
What is the function of cholecystokinin Signals the gallbladder, pancreas, and stomach to produce bile and enzymes to
(CCK) in digestion? help in digestion
What is the function of mucus in the Protects the stomach walls from gastric enzymes and acids
stomach?
What specific role does the stomach It churns and mixes the food with gastric juice to break down food into smaller
perform in the process of digestion? particles.
What is the primary function of the large Absorption of water, salts, and vitamin K.
intestine in the digestive process?
What is the function of salivary amylase They start the breakdown process of carbohydrates and fats in the mouth.
and salivary lipase in the process of
digestion?
Which hormone signals to the brain that Ghrelin
it's time to eat?
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