Exploring Gas Exchange in the Respiratory System

What triggers the feeling of anxiety during a presentation?

• Imagining worst-case scenarios

• Audience's expectations

• Technical issues with the presentation

• Forgetting the content

What is the primary role of carbon dioxide in the blood?

• Producing energy

• Transporting oxygen

• Maintaining homeostasis

• Increasing blood temperature

Tags

NGSS.HS-LS1-3

How does hemoglobin's affinity for oxygen change?

• Decreases with physical activity

• Varies depending on the body's needs

• Increases with altitude

• It remains constant

What does the partial pressure of a gas indicate?

• Its color

• Its concentration in a mixture

• Its weight

• Its temperature

Why is it harder to breathe at higher altitudes?

• Increased humidity

• Decreased air quality

• Lower partial pressure of oxygen

• Higher temperature

What effect does CO2 have on hemoglobin's affinity for oxygen?

• Increases it

• No effect

• Decreases it

• Makes it variable

Tags

NGSS.HS-LS1-3

Why does the body's response to stress not always match the actual situation?

• Because of an overactive imagination

• Due to a lack of oxygen

• The body prepares for fight or flight even when unnecessary

• Miscommunication between cells and tissues

Tags

NGSS.HS-LS1-3

What is the result of hyperventilating on blood pH?

• It decreases

• It remains the same

• It increases

• It fluctuates rapidly

Tags

NGSS.HS-LS1-3

How does breathing into a paper bag help during hyperventilation?

• It distracts from anxiety

• It increases CO2 levels in the blood

• It calms the person down

• It increases oxygen intake

What is homeostasis?

• A state of panic

• A breathing technique

• A type of respiratory disease

• The body's equilibrium state

Tags

NGSS.HS-LS1-3