Unit 1 & 2 Review

How does the body maintain homeostasis when it is cold outside? SELECT ALL THAT APPLY.

• The body begins to shiver.

• Vasocontriction.

• The body begins to sweat.

How do the digestive system and the circulatory system work together?

• They help regulate body temperature.

• They absorb nutrients and remove waste from the body.

• They help the body with transporting materials across the cell membrane.

• Only the digestive sytem moves substances throughout the body.

How do fish regulate the amount of salt or water in their body?

• Osmosis

• Active Transport

• Endocytosis

• Exocytosis

Looking at the graph above, what does an enzyme do?

• It increases the activation energy.

• It decreases the number of products produced.

• It increases the number of reactants needed.

• It speeds up the reaction by reducing the energy needed to run the reaction.

Which of the following are represented by the picture above? SELECT ALL THAT APPLY.

• Hypotonic

• Isotonic

• Hypertonic

• Active transport

How does the cell regulate what goes into it and out of it?

• Cell membrane

• Mitochondria

• Nucleus

• DNA

What happens when enzymes are heated to a high temperature?

• The enzymes die.
• The shapes of the enzyme are altered or denatured
• The enzymes' amino acid sequence changes.
• The enzymes remain the same

Protects the body, regulates body temperature

• Integumentary

• Nervous

• Skeletal

• Muscular

Carries oxygen and nutrients to all parts of the body.

• Integumentary

• Nervous

• Circulatory

• Respiratory

Allows movement in the body

• Integumentary

• Nervous

• Skeletal

• Muscular