AP Biology Lab 10: Physiology of the Circulatory System

Mr. Andersen introduces AP Biology Lab 10, focusing on the physiology of the circulatory system. The lab has two parts: measuring human blood pressure and observing how temperature affects the respiration rate of a goldfish. Blood pressure is measured using a sphygmomanometer and stethoscope, identifying systolic and diastolic pressures through Korotkoff sounds. The goldfish experiment involves changing water temperature and observing the operculum movements to determine respiration rate, highlighting the impact of temperature on ectotherms.

What are the two main parts of the AP Biology Lab 10?

• Measuring blood pressure and heart rate

• Measuring blood pressure and temperature effects on a goldfish

• Temperature effects on a goldfish and heart rate

• Temperature effects on a goldfish and blood sugar levels

Which device is used to measure blood pressure in this lab?

• Barometer

• Thermometer

• Sphygmomanometer

• Electrocardiogram

What are the Korotkoff sounds used to determine?

• Blood sugar levels

• Heart rate

• Systolic and diastolic blood pressure

• Respiration rate

How does the respiration rate of a goldfish change with temperature?

• It fluctuates randomly with temperature changes

• It increases as temperature decreases

• It decreases as temperature decreases

• It remains constant regardless of temperature

Why do goldfish respiration rates change with temperature?

• They are endotherms

• They are mammals

• They have a constant internal temperature

• They are ectotherms