Unit Test: Homeostasis

What triggers the increase in heart rate during exercise, and how does this impact the delivery of oxygen to muscles?

• • Decrease in body temperature

• Increase in demand for oxygen

• Decrease in blood pressure

• • Increase in muscle mass

Tags

NGSS.HS-LS1-3

How does the removal of metabolic waste, such as carbon dioxide, relate to the changes in heart rate during physical activity?

• Increased heart rate decreases waste removal

• Increased heart rate helps in removing waste products

• Decreased heart rate increases waste buildup

• Heart rate has no impact on waste removal

Tags

NGSS.HS-LS1-3

Explain how the body returns to homeostasis after exercise, including the changes in heart rate.

• Heart rate remains elevated indefinitely

• Heart rate decreases back to resting levels

• Heart rate increases further after exercise

• Heart rate fluctuates unpredictably

Tags

NGSS.HS-LS1-3

Why is maintaining homeostasis important for overall health and functioning of the human body?

• It allows the body to change rapidly

• It ensures stable internal conditions

• It prevents any physical activity

• It allows for unlimited energy production

Tags

NGSS.HS-LS1-3

If Daphnia are exposed to a sudden drop in temperature to 10 °C after being acclimated to 30 °C, what is the expected change in heart rate?

• Heart rate will decrease

• Heart rate will increase

• Heart rate will remain the same

• Heart rate will fluctuate

Tags

NGSS.HS-LS1-3

Based on the data collected, how does an increase in temperature affect the heart rate of Daphnia?

• No change in heart rate

• • Heart rate decreases

• • Heart rate increases

• • Heart rate fluctuates randomly

Tags

NGSS.HS-LS1-3

What is a limitation of the investigation shown in the data table?

• The temperature range is too narrow

• External factors such as light and noise may impact heart rate measurements

• The observation time is too long

• The heart rate of Daphnia is not affected by temperature

A student measures his pulse rate while he is watching television and records it. Next, he walks to a friend’s house nearby and when he arrives, measures and records his pulse rate again. He and his friend then decide to run to the mall a few blocks away. On arriving at the mall, the student measures and records his pulse rate once again. Finally, after sitting and talking for a half hour, the student measures and records his pulse rate for the last time.

Which graph below best illustrates the expected changes in his pulse rate according to the activities described above?

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Tags

NGSS.HS-LS1-3

What type of transport does not require energy or a protein and moves molecules from high to low concentration?

• Active Transport

• Passive transport

• Facilitated Diffusion

• Endocytosis

The diffusion of water is called

• Active transport

• Facillitated diffusion

• Osmosis

• Exocytosis