Semester review

The basic unit of structure and function for the body.

• cell

• atom

• organelle

• nucleus

When your body needs additional energy, like when you run, things happen in your body systems to give you the additional food and oxygen you need in your cells.

Which of the following is happening to send more energy to cells when you are running?

I. Your skeletal system gets stronger.

II. Your digestive system breaks down food faster.

III. Your heart pumps blood with more force.

IV. Your lungs work harder and faster.

• II and IV

• I and III

• III and IV

• I and II

A group of similar cells that perform the same function.

• tissue

• organelle

• mass

• tendon

Which is the correct order for levels of organization from simple to complex?

• cell, organ , tissue, organ system, organism

• organism, organ system, tissue, cell, organ

• cell, tissue, organ, organ system, organism

• organ, tissue, cell, organism, organ system

You are riding a bike and need more energy, what is an example of you response of your body to restore it back to normal

• Breath faster to reduce CO2

• eating an apple

• drinking water

• increase salt waste

Which of the following would be an EXTERNAL stimulus?

• You are hungry 

• You are thirsty

• It is raining 

• You have a sinus infection

Which of the following is a response to an INTERNAL stimulus?

• Smelling cookies as they bake and then eating the warm cookies from the oven

• Watching a television commercial about chips and then snacking on a bag of chips

• Having hunger pains and then eating a sandwich

• Seeing a cake on the kitchen table and then sneaking a slice of it

Organs are more complex than?

• organ, organ system

• cell, tissue

• organisims

• organ system

organs are less complex than

• cell, tissue

• tissue

• organ system, organisim

• cell

Which organelle belongs in plant cells only?

• Cell Membrane

• Mitochondrion

• Chloroplast

• Nucleus