QUIZ # 1

SURNAME

FIRST NAME

GRADE AND SECTION

1. The heart is a muscular organ that pumps blood throughout the body.Untitled Question

• TRUE
• FALSE

2. Arteries carry oxygen-poor blood away from the heart, while veins carry oxygen-rich blood back to the heart.

• TRUE
• FALSE

3. The circulatory system is responsible for transporting nutrients, oxygen, and waste products to and from cells.

• FALSE
• TRUE

4. Red blood cells contain hemoglobin, which is essential for transporting oxygen in the bloodstream

• FALSE
• TRUE

5. The circulatory system plays no role in regulating body temperature.

• TURE
• FALSE

1.What is the primary function of red blood cells in the circulatory system?

• A) To transport oxygen from the lungs to the tissues
• B) To fight infections in the body
• C) To regulate blood pressure
• D) To produce hormones

2. Which component of the circulatory system is primarily responsible for the exchange of gases between the blood and tissues?

• A) Artery
• B) Viens
• C) Capillaries
• D) Heart