Homeostasis and Osmosis Quiz 2

A red blood cell is placed in pure water that is higher in concentration than the cell. What happens next?

• The cell shrinks

• The cell stays the same

• The cell swells and may burst

• The water leaves the cell

Tags

NGSS.HS-LS1-3

A student runs a mile in PE class. How does their body maintain homeostasis through negative feedback?

• The lungs shrink

• The heart rate slows

• The body stops sweating

• Breathing and sweating increase to cool and oxygenate the body

Tags

NGSS.HS-LS1-3

Which of the following is an example of negative feedback in the body?

• Blood clotting

• Childbirth contractions

• Regulation of blood glucose levels

• Fever

Tags

NGSS.HS-LS1-3

What happens to a plant cell in a hypertonic solution?

• It becomes turgid

• It shrivels up

• It bursts

• It remains unchanged

How does positive feedback differ from negative feedback?

• Positive feedback decreases the response

• Positive feedback amplifies the response

• Positive feedback maintains equilibrium

• Positive feedback has no effect

Tags

NGSS.HS-LS1-3

What is the result of placing a cell in an isotonic solution?

• The cell shrinks

• The cell swells

• The cell remains the same size

• The cell bursts

Tags

NGSS.HS-LS1-3

What role does sweating play in maintaining homeostasis during exercise?

• Increases body temperature

• Decreases heart rate

• Cools the body

• Increases blood pressure

Tags

NGSS.HS-LS1-3

If someone were get a cut and is bleeding what would we want the body to perform to be a positive feedback response?

• We want the plateletes in our blood to increase in flow to clot

• We want our blood to stop flowing so fast

• We want our heart to beat the same speed

• We want to slow our breathing down

Tags

NGSS.HS-LS1-3