Body Systems_Y8

What waste does the large intestine remove?

• Liquid waste (urine and water)

• Solid waste (faeces made of undigested food and bacteria)

• Gaseous waste (carbon dioxide and methane)

• Nutrient waste (excess vitamins and minerals)

What do red blood cells (RBCs) do?

• Carry oxygen to body cells and remove carbon dioxide.

• Transport nutrients to the brain.

• Fight infections and diseases.

• Regulate body temperature.

What does the liver do in digestion?

• Produces bile to break down fats.

• Absorbs nutrients from the intestines.

• Filters toxins from the blood.

• Stores glucose for energy.

What are alveoli?

• Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.

• Large blood vessels that carry oxygenated blood from the heart.

• Muscles that help in the expansion and contraction of the lungs.

• Cells that produce mucus in the respiratory tract.

What are the three types of blood vessels?

• Arteries, veins, and capillaries.

• Arteries, lymphatics, and veins.

• Veins, capillaries, and arteries.

• Arteries, veins, and aorta.

What are bronchioles?

• Small air sacs where gas exchange occurs.

• Smaller branches of the bronchi that carry air to the alveoli.

• Large tubes that transport air from the trachea to the lungs.

• Muscular structures that control airflow in the lungs.

What is the word equation for respiration?

• Oxygen + glucose → energy + carbon dioxide + water.

• Carbon dioxide + water → glucose + oxygen.

• Glucose + oxygen → energy + carbon monoxide + water.

• Oxygen + fat → energy + carbon dioxide + water.

What do veins do?

• Carry oxygenated blood away from the heart.

• Carry deoxygenated blood toward the heart.

• Transport nutrients to the body.

• Filter waste from the blood.

What do capillaries do?

• Transport blood away from the heart.

• Allow the exchange of oxygen, carbon dioxide, and nutrients with cells.

• Store blood for later use.

• Regulate blood pressure.

What is a bolus?

• A type of digestive enzyme.

• A small ball of chewed food formed in the mouth.

• A muscle contraction in the stomach.

• A type of food preservative.