Science Review Quiz

What is the main organ of the respiratory system ?

• Diaphragm

• Lungs

• Nose

• Alveoli

Which organ is responsible for breaking down food first?

• Mouth

• Large intestine

• Small intestine

• Stomach

What is the role of red blood cells?

• To carry carbon dioxide to the body

• To transport waste to the body

• To carry oxygen to the body

• Create red pigment in blood

What system breaks down food for energy?

• Circulatory system

• Digestive system

• Respiratory system

• Skeletal system

What type of blood vessel caries blood away from the heart?

• Platelets

• aorta

• vena cava

• arteries

What gas do we inhale that our bodies need?

• Nitrogen

• Carbon Dioxide

• Oxygen

• Dioxygen

What is the main function of the digestive system?

• To break down food and absorb nutrients.

• To eat

• To breathe

• To break down water

Besides red blood cells, what other blood cells do we have?

• Blue blood cells

• Plasma

• Platelets

• White blood cells

Where does most nutrient absorption occur in the digestive system?

• stomach

• large intestine

• liver

• small intestine

Which system helps you breathe?

• Lungs

• respiratory

• ravioli

• diaphragm