Feedback loops

What is the point of a feedback loop?

• To provide the body with more energy

• To provide the body with more food

• To make sure the conditions in the body are always changing

• To make sure the conditions in the body remain stable

Tags

NGSS.HS-LS1-3

A feedback loop best fits which characteristic of life?

• Cells

• Organization

• Homeostasis

• Adaptation

Tags

NGSS.HS-LS1-3

In this body temperature feedback loop, predict what would happen if cooling mechanisms were NOT activated?

• The body would not warm up.

• The body would not cool down.

• Your body would get colder and colder.

• Your body would release lots of heat.

Tags

NGSS.HS-LS1-3

According to the feedback loop, what does high blood sugar promote?

• Insulin Release

• Glucagon Release

• Insulin Uptake

• Glycogen Uptake

Tags

NGSS.HS-LS1-3

What happens if stretch receptors are activated in the uterus?

• Oxytocin will cause uterine muscles to relax

• Contractions will get weaker

• The baby will be born later than normal

• The brain will signal for the release of oxytocin

Tags

NGSS.HS-LS1-3

If the anterior pituitary does not release TSH, what will happen?

• Thyroid follicles will not release T3 and T4

• The hypothalamus will release TRH

Tags

NGSS.HS-LS1-3

What is the difference between what will happen if their is too much Glucose or too little Glucose? SELECT ALL THAT APPLY

• With too much Glucose, Insulin is released. With too little Glucose, Glucagon is released.

• With too much Glucose, the pancreas produces insulin. With too little Glucose, the pancreas produces glucagon.

• With too much Glucose, Glucagon is released. With too little Glucose, Insulin is released.

• There is no difference.

Tags

NGSS.HS-LS1-3

Failure to maintain homeostasis could result in:

• lack of internal balance
• eventual death
• difficulty carrying on metabolism 
• all three

Tags

NGSS.HS-LS1-3

The two types of feedback systems that help organisms maintain homeostasis are:

• positive and negative 
• receptor and effector
• static and dynamic
• minor and major

Tags

NGSS.HS-LS1-3

Maintaining body temperature is an example of a:

• negative feedback loop
• positive feedback loop

Tags

NGSS.HS-LS1-3