Unit 4: Feedback & Homeostasis Review

Oxygen and carbon dioxide gas are able to diffuse across a membrane if they are moving from...

• High concentration to low concentration
• Low concentration to high concentration
• equal concentration to equal concentration
• Gases cannot diffuse across membranes

Transport across a membrane will require the use of ATP when it is moving from...

• High concentration to low concentration
• Low concentration to high concentration
• equal concentration to equal concentration
• Gases cannot diffuse across membranes

What part of the cell is responsible for maintaining homeostasis of the inside of the cell?

• The mitochondria
• The chloroplast
• The cell membrane
• The nucleus

What is a semipermeable membrane?

• A membrane that doesn't let anything in or out
• A membrane that lets everything in and out 
• A membrane that only lets specific things in and out

What is an example of something that cannot passively diffuse across a membrane?

• oxygen gas
• glucose
• carbon dioxide

Cells can bring in glucose using...

• Active transport
• Passive transport

What is the regulation of a living thing's internal environment called?

• photosynthesis
• lactic acid fermentation
• homeostasis
• cellular respiration

What do we call the process through which our bodies maintain homeostasis?

• feedback
• photosynthesis
• cellular respiration
• alcoholic fermentation

What do we call a change that our bodies can sense and respond to?

• Stimulus
• Effector
• Response
• Photosynthesis

What do we call the part of the body that responds the the stimulus?

• Stimulus
• Effector
• Response
• Photosynthesis