Question

1. a patient comes to the hospital complaining of feeling unwell. the doctor runs several tests to check the function of six major body systems. the results were then compared to its normal functioning range. this is shown in the chart below.

test performed	patient result	normal range
nutrients absorbed (%)	91	85 - 95
waste removed from blood (mg/l)	17	15 - 20
reaction time to a light signal (ms)	298	200 - 300
muscle strength (kg of force)	45	40 - 50
blood pressure (mmhg)	116/76	110 - 120 / 70 - 80

based on the data, which body system is most likely not functioning correctly?
a. the digestive system, because nutrient absorption is slightly above the normal range.
b. the respiratory system, because oxygen levels in the blood are below the normal range
c. the excretory system, because it is not able to remove enough waste from the blood.
d. the circulatory system, because blood pressure is only slightly above the normal range

1. the liver helps break down proteins into urea. which system is the liver part of, and how does it connect to the excretory system?

a. digestive system; produces waste that kidneys filter
b. circulatory system; pumps waste directly to bladder
c. nervous system; sends signals to bladder muscles
d. muscular system; moves urine through ureters

1. leukemia is a cancer that damages the bone marrow. which of the following best describes how the body would be impacted by this disease?

a. the skeletal system may remain structurally intact, but healthy blood cells cannot be produced.
b. the digestive system would have limited nutrient absorption and delivery, leading to cell fatigue.
c. the nervous system may be impaired due to reduced oxygen to neurons, slowing signals to the heart and
d. all of the above

1. during a sprint, alexs muscles work intensely to push him forward. as he runs, his breathing rate, his heart beats faster, and he sweats to stay cool. which of the following best explains how multiple body systems are interacting during his sprint?

a. his muscular system contracts to move his legs, his respiratory system brings in more oxygen, and his circulatory system delivers that oxygen to the muscles.
b. his digestive system speeds up to provide energy while his urinary system filters extra fluids.
c. his nervous system slows down signals to his muscles, while his circulatory system removes carbon dioxide from the muscles.
d. his skeletal system produces more red blood cells on demand, and his respiratory system removes carbon dioxide more slowly.

Explanation:

Question 10

• Analyze each option:
• Option A: Nutrient absorption (digestive system) is 91%, normal range 85 - 95, so it's within range, not the issue.
• Option B: Oxygen in blood (respiratory system) is 88 mL/L, normal 95 - 100, below range. This matches a respiratory system issue.
• Option C: Waste removed (excretory) is 17 mg/L, normal 15 - 20, within range.
• Option D: Blood pressure (circulatory) is 116/76, normal 110 - 120/70 - 80, slightly above but not the main issue.

• The liver is part of the digestive system (breaks down nutrients including proteins). It produces urea (waste) which is filtered by the kidneys (excretory system).
• Option A: Correct, digestive system produces waste (urea) filtered by kidneys.
• Option B: Circulatory system doesn't pump waste to bladder directly.
• Option C: Nervous system doesn't send signals for this; it's about waste processing.
• Option D: Muscular system isn't involved in urea production/urine movement.

• Bone marrow (in skeletal system) produces blood cells. Leukemia damages bone marrow, so:
• Option A: Skeletal structure may stay, but blood cell production is impaired. Correct.
• Option B: Limited blood cells affect nutrient delivery (circulatory) to digestive system, limiting absorption. Correct.
• Option C: Reduced oxygen (from bad blood cells) impairs nervous system neurons. Correct.
• Option D: All of the above, as A, B, C are correct.

Answer:

B. The respiratory system, because oxygen levels in the blood are below the normal range

Question 11