Stage 8 Quiz #1: Respiration

Every living organism needs energy. They get their energy from glucose and other ____________________.

The energy is ____________________ from the nutrients by chemical reactions in cells, called ____________________ ____________________.

During these reactions, the glucose is combined with oxygen. Oxygen is transported to our cells by ____________.

These cells contain a red pigment called ____________________.

Oxygen enters the blood in the air sacs in the ____________________.

The oxygen moves from the air into the blood by ____________________.

Carbon dioxide moves in the opposite direction. This is called ____________________.

Red blood cells transport oxygen.

• true

• false

White blood cells serve as antibodies.

• true

• false

White blood cells protect againts pathogens.

• true

• false