QUIZ CIRCULATORY SYSTEM

An athlete experiences an increased heart rate while running in a mountainous area. What affects the circulatory system in this condition?

• Low oxygen levels in the environment

• Increased body temperature

• Decreased arterial blood pressure

• Reduced blood viscosity

Tags

NGSS.HS-LS1-3

If the left ventricle of the heart malfunctions, how does it affect other organ systems?

• Reduced oxygen supply to body tissues

• Increased carbon dioxide levels in the lungs

• Decreased enzymatic activity in digestion

• Increased hemoglobin production in the blood

Tags

NGSS.HS-LS1-3

If a person suffers from iron deficiency, what happens to the oxygen transport capacity in their blood? Explain logically.

• Oxygen transport capacity increases
  

• Oxygen transport capacity decreases due to reduced hemoglobin
  

• No change, as iron doesn’t affect hemoglobin
  

• Hemoglobin compensates for the lack of iron

If a person has high blood pressure, how does it affect the heart's workload?

• The heart works harder to pump against vascular resistance

• Blood pressure does not affect the heart

• The heart pumps weaker to adjust the pressure

• Blood flow remains constant as blood vessels adapt

Tags

NGSS.HS-LS1-3

What is the relationship between increased blood viscosity and cardiovascular disease risk, based on Poiseuille's Law?

• Higher viscosity speeds up blood flow

• Higher viscosity increases blood pressure, raising cardiovascular risk

• Viscosity doesn’t affect blood pressure

• Higher viscosity reduces pressure on vessel walls

Why does blood flow faster in narrow vessels, yet blood pressure remains high in these areas? Use Bernoulli's principle.

• High speed reduces pressure

• Fast flow doesn’t affect blood pressure

• High pressure is needed to maintain flow in narrow areas

• Blood pressure decreases because vessels widen afterward

What happens if a person’s blood pH drops significantly (acidosis)? How does it affect hemoglobin function?

• Hemoglobin becomes more effective at binding oxygen

• Hemoglobin loses its ability to bind oxygen effectively

• No changes occur in hemoglobin function

• Hemoglobin destroys oxygen molecules

When someone hyperventilates (breathes too quickly), what happens to carbon dioxide levels in the blood, and how does the body respond?

• CO₂ levels increase; the body slows down breathing

• CO₂ levels decrease; the body slows down breathing

• CO₂ levels remain constant; hemoglobin production increases

• CO₂ levels decrease; heart rate increases

Tags

NGSS.HS-LS1-3

A patient experiences a blockage in a major artery. Analyze its impact based on biology, physics, and chemistry perspectives.

• Biology: More oxygen supply to tissues; Physics: Slower blood flow; Chemistry: Increased oxygen levels

• Biology: Increased hemoglobin; Physics: Decreased blood pressure; Chemistry: Stable blood pH

• Biology: Normal blood flow; Physics: Constant pressure; Chemistry: No changes in chemical reactions

• Biology: Disrupted oxygen delivery; Physics: Increased blood pressure; Chemistry: Acidosis due to CO₂ build up

Tags

NGSS.HS-LS1-3

If someone loses a significant amount of blood in an accident, what should be done to restore normal body function, and why?

• Administer replacement fluids to increase viscosity

• Provide supplemental oxygen to improve blood saturation

• Perform a blood transfusion to restore red blood cells and hemoglobin

• Lower body temperature to slow blood flow

Tags

NGSS.HS-LS1-3