Homeostasis

Which of the following is not regulated by homeostasis?

• body temperature

• blood sugar

• blood pH

• body movements

Homeostasis is the maintenance of

• huge fluctuations in the internal environment

• huge fluctuations in the external environment

• a relatively stable internal environment

• a relatively stable external environment

Organisms that use the process of homeostasis include:

• mammals only

• animals only

• plants and animals

• all living things

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter cells, lowering blood sugar levels.

This is an example of a...

• Positive Feedback Loop

• Negative Feedback Loop 
• Positive Response Loop

• Negative Response Loop

What is the name of the simple sugar that is found in blood and used for energy production?

• glucose

• magnesium

• sodium

• glucagon

What detects a change and sends a message to the control centre?

• effector

• control center

• receptor

• stimulus

The organ responsible for producing insulin is...

• Liver

• Heart

• Pancreas

• Gallbladder

High blood sugar would be considered...

• a response

• an effector

• a control centre

• a stimulus

What is the best definition for a receptor?

• Sensors that detect changes in the body

• Sensors that carry signals to the hypothalamus

• Sensors that receive messages and initiates the body's responses

• Sensors located in the skin