Circulatory System Quiz - ICSE Class 10 Biology
Free practice quiz: Circulatory System (ICSE Class 10 Biology). 48 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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Which of the following chambers of the heart receives deoxygenated blood from the entire body?
- Right atrium
- Left atrium
- Right ventricle
- Left ventricle
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Answer: A. Right atrium
The right atrium is the chamber of the heart that receives deoxygenated blood returning from the systemic circulation, via the superior and inferior vena cava.
What is the primary function of the vena cavae?
- To carry oxygenated blood to the heart
- To carry deoxygenated blood to the heart
- To carry oxygenated blood away from the heart
- To carry deoxygenated blood away from the heart
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Answer: B. To carry deoxygenated blood to the heart
The superior and inferior vena cava are the largest veins in the body and they collect deoxygenated blood from all parts of the body and return it to the right atrium of the heart.
What is the process by which substances are exchanged between blood and body tissues at the capillary level?
- Osmosis
- Active transport
- Diffusion and filtration
- Pinocytosis
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Answer: C. Diffusion and filtration
Exchange of gases (like oxygen and carbon dioxide), nutrients, and waste products occurs across the thin walls of capillaries primarily through diffusion and filtration, driven by pressure and concentration gradients.
The process of blood clotting is also known as:
- Vasodilation
- Vasoconstriction
- Hemostasis
- Perfusion
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Answer: C. Hemostasis
Hemostasis is the physiological process that stops bleeding at the site of an injury, involving platelet aggregation and the coagulation cascade to form a blood clot.
The term 'stroke volume' refers to:
- The total amount of blood pumped by the heart per minute
- The amount of blood pumped by the left ventricle with each beat
- The resistance to blood flow in the arteries
- The speed at which blood flows through the veins
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Answer: B. The amount of blood pumped by the left ventricle with each beat
Stroke volume is the volume of blood ejected from the left ventricle during one systolic contraction. Cardiac output is the product of stroke volume and heart rate.