7th Grade M3 Less Sets 1 & 2

Select all that apply in order to be considered a living thing:

• it must reproduce

• breathes oxygen

• reacts to stimuli (movement)

• has a metabolism (turns food into energy)

• it grows

Capillaries are the smallest blood vessels. What passes through them?

• villi

• glucose

• pepsin

• oxygen

• carbon dioxide

What part of your blood carries oxygen

• Red blood cells

• White blood cells

• Platelets

• Plasma

What part of your blood carries food molecules and water?

• Red blood cells

• White blood cells

• Platelets

• Plasma

Tags

NGSS.MS-LS1-7

We breathe in 21% oxygen but exhale only 17%. What happens to the 4% seems to disappear?

• It's stored in the lungs.

• It's eliminated by the digestive system.

• It escapes through our skin.

• Cells use it to make energy.

Tags

NGSS.MS-LS1-2

How does oxygen get into your bloodstream?

• The trachea transports it the heart and is pumped out.

• It is picked up by the cells in your nose.

• It diffuses from the alveoli.

• It diffuses from the villi.

What is the function of the digestive system?

• carry oxygen and glucose to the cells

• break down food we eat into molecules that can be used by our cells

• carry carbon dioxide waste out of our body

• turn the food we eat into energy

What are the main functions of the circulatory system?

• transport oxygen and glucose to the cells

• break down food we eat into molecules that can be used by our cells

• deliver carbon dioxide to the lungs

• turn the food we eat into energy

What do cells need to make energy?

• carbon dioxide

• glucose

• calcium

• oxygen

Tags

NGSS.MS-LS1-6

Select examples of diffusion

• when you chew food

• glucose moving from villi to capillaries

• oxygen moving from alveoli to bloodstream

• when a plant takes in water