Human and plants Transportation

How many chambers does the heart have?

• Three—two atria and one ventricle.

• Four—two atria (upper) and two ventricles (lower).

• Five—three atria and two ventricles.

• Two—one atrium and one ventricle.

Instrument used to measure blood pressure.

• Sphygmomanometer

• Thermometer

• Stethoscope

• Oximeter

What is lymph?

• A type of blood cell responsible for oxygen transport.

• Tissue fluid that carries fats, nutrients, and white blood cells; part of immune defense.

• A hormone that regulates metabolism.

• A type of muscle tissue found in the heart.

Name two roles of transpiration.

• Cooling the plant and pulling water upward.

• Providing nutrients to the soil and enhancing photosynthesis.

• Reducing water loss and increasing soil moisture.

• Regulating temperature and promoting root growth.

Trace deoxygenated blood’s path through the heart.

• Body → vena cavae → right atrium → right ventricle → pulmonary artery → lungs.

• Body → pulmonary veins → left atrium → left ventricle → aorta → body.

• Body → right atrium → left atrium → left ventricle → aorta → body.

• Body → vena cavae → left atrium → right ventricle → pulmonary artery → lungs.

What is pulmonary circulation?

• Right ventricle → lungs → left atrium.

• Left ventricle → body → right atrium.

• Right atrium → lungs → left ventricle.

• Left atrium → body → right ventricle.

Why is mixing of blood avoided in mammals?

• To keep oxygenated and deoxygenated blood separate, ensuring efficient oxygen delivery.

• To prevent blood clotting and ensure smooth circulation.

• To maintain a constant body temperature during physical activity.

• To allow for the mixing of nutrients and waste products in the bloodstream.

Where is the human heart located?

• In the center of the chest, above the lungs.

• Slightly to the left side of the chest, between the lungs.

• On the right side of the chest, near the shoulder.

• In the abdomen, below the diaphragm.

What is double circulation?

• A single loop of blood circulation through the heart and body.

• Two separate loops—pulmonary (heart↔lungs) and systemic (heart↔body).

• A continuous flow of blood without any separation.

• A type of circulation that only occurs in aquatic animals.

Name the three types of blood vessels.

• Arteries, veins, and capillaries.

• Arteries, lymphatics, and veins.

• Veins, capillaries, and arteries.

• Capillaries, arteries, and lymphatics.