Take This Biology Quiz To Learn More About Heart

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    Does the heart has valves?

    • Yes
    • No
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About This Quiz


We welcome you to take this biology quiz to learn more about the human heart. Our hearts keep our bodies moving and grooving throughout our daily lives, pumping blood to all of our vital organs and keeping them functioning. What do you know about the heart and how it works? Take the following biology-themed quiz, and we’ll find out together! Let's all learn and grow together. Don't forget to share the quiz with people who would appreciate it. All the very best!

Take This Biology Quiz To Learn More About Heart - Quiz

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  • 2. 

    Is smoking good for your heart?

    • Yes

    • No

    • It depends

    • None of the above

    Correct Answer
    A. No
    Explanation
    Smoking is not good for your heart because it increases the risk of heart disease. Smoking damages the blood vessels and reduces the amount of oxygen in the blood, leading to a higher chance of developing conditions such as high blood pressure, heart attacks, and strokes. Additionally, smoking also increases the risk of developing other cardiovascular diseases, such as peripheral artery disease. Therefore, it is clear that smoking is harmful to the heart and overall cardiovascular health.

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  • 3. 

    What does the heart normally do?

    • Filter your blood

    • Pumping your blood around

    • Nothing

    • Purifies the air inside the body

    Correct Answer
    A. Pumping your blood around
    Explanation
    The heart is responsible for pumping blood throughout the body. It acts as a muscular pump, continuously contracting and relaxing to push oxygen-rich blood to the organs and tissues, and to return oxygen-poor blood to the lungs for oxygenation. This process ensures that all cells in the body receive the necessary nutrients and oxygen for proper functioning.

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  • 4. 

    What is the task of white blood cells?

    • Fighting disease

    • Carrying oxygen

    • Nothing

    • Stimulates neuron formation

    Correct Answer
    A. Fighting disease
    Explanation
    White blood cells, also known as leukocytes, play a crucial role in the immune system. Their main task is to fight against disease-causing pathogens such as bacteria, viruses, and fungi. They do this by identifying and destroying these harmful invaders, thereby protecting the body from infections and diseases. White blood cells are responsible for recognizing foreign substances, producing antibodies, and coordinating immune responses to maintain the overall health and well-being of an individual.

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  • 5. 

    How can a heart attack occur?

    • Serious blood loss

    • The heart doesn´t have enough oxygen to operate

    • Heart valve complications

    • It happens due to high blood pressure

    Correct Answer
    A. The heart doesn´t have enough oxygen to operate
    Explanation
    A heart attack can occur when the heart doesn't have enough oxygen to operate. This can happen when there is a blockage in the coronary arteries, which supply oxygen-rich blood to the heart muscle. When the arteries are blocked, the heart muscle becomes deprived of oxygen and begins to die. This can result in chest pain, shortness of breath, and other symptoms associated with a heart attack.

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  • 6. 

    To what extent does the heart have chambers?

    • 1

    • 2

    • 4

    • 6

    Correct Answer
    A. 4
    Explanation
    The heart has four chambers. It consists of two atria and two ventricles. The atria receive blood from the body and lungs, while the ventricles pump blood to the rest of the body. This division of chambers allows for efficient blood circulation and prevents the mixing of oxygenated and deoxygenated blood.

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  • 7. 

    There are more white blood cells than red blood cells.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because there are actually more red blood cells than white blood cells in the human body. Red blood cells, also known as erythrocytes, are the most abundant type of blood cell and their main function is to transport oxygen to the body's tissues. White blood cells, also known as leukocytes, are less numerous and play a key role in the immune system, helping to fight off infections and diseases.

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  • 8. 

    Which substance carries the oxygen?

    • Haemoglobin

    • Plasma

    • Platelets

    • Hormones

    Correct Answer
    A. Haemoglobin
    Explanation
    Haemoglobin is a protein found in red blood cells that is responsible for carrying oxygen from the lungs to the rest of the body. It binds to oxygen in the lungs and releases it in tissues that need it. Plasma is the liquid component of blood, platelets are involved in blood clotting, and hormones are chemical messengers that regulate various bodily functions. However, none of these substances have the primary function of carrying oxygen like haemoglobin does.

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  • 9. 

    What makes the valves of the heart shut?

    • The same machanism that cause the haert to beat

    • The pressure of the blood

    • The nerve impulses causes the heart valves shut

    • None of the above

    Correct Answer
    A. The pressure of the blood
    Explanation
    The correct answer is the pressure of the blood. When the heart pumps blood, it creates pressure within the arteries. This pressure causes the valves in the heart to shut, preventing the backflow of blood and ensuring that it flows in the correct direction.

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  • 10. 

    The heart is connected to all organs.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The heart is connected to all organs through a network of blood vessels called the circulatory system. This system allows the heart to pump oxygenated blood to all organs and tissues in the body, delivering nutrients and removing waste products. Without this connection, organs would not receive the necessary oxygen and nutrients to function properly. Therefore, the statement "The heart is connected to all organs" is true.

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  • 11. 

    An Agina is the first sign of starting heart disease. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    An angina is a common symptom of coronary artery disease, which is a type of heart disease. It occurs when there is a reduced blood flow to the heart muscle, usually due to a blockage in the coronary arteries. Angina is often described as chest pain or discomfort, and it can be a warning sign that there is an underlying heart problem. Therefore, it is correct to say that angina is the first sign of starting heart disease.

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  • 12. 

    Which side of the heart contains the oxygen rich blood?

    • Left side

    • Right side

    Correct Answer
    A. Left side
    Explanation
    The left side of the heart contains oxygen-rich blood because it receives the blood from the lungs, where it gets oxygenated. This oxygenated blood is then pumped out to the rest of the body to supply oxygen to the tissues and organs. The right side of the heart, on the other hand, receives deoxygenated blood from the body and pumps it to the lungs for oxygenation.

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  • 13. 

    Which side of the heart is stronger (more muscle)?

    • Left side

    • Right side

    • Same

    • It's not applicable

    Correct Answer
    A. Left side
    Explanation
    The left side of the heart is stronger because it is responsible for pumping oxygenated blood to the entire body. It has thicker and more muscular walls compared to the right side, which only pumps deoxygenated blood to the lungs. The left side needs to generate enough force to circulate blood throughout the body, making it stronger than the right side.

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  • 14. 

    Which medical device can stimulate the beating of the heart?

    • Defibrillator

    • Pacemaker

    • Battery

    • Sphygmomanometer

    Correct Answer
    A. Pacemaker
    Explanation
    A pacemaker is a medical device that can stimulate the beating of the heart. It is a small device that is implanted in the chest or abdomen and uses electrical pulses to regulate the heart's rhythm. Pacemakers are commonly used to treat conditions such as bradycardia, where the heart beats too slowly. By sending electrical signals to the heart, the pacemaker can help maintain a normal heart rate and ensure that the heart beats in a regular and coordinated manner.

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  • 15. 

    What is the normal range of human heart rate?

    • 60-90

    • 80-100

    • 40-90

    • 120 - 150

    Correct Answer
    A. 60-90
    Explanation
    The normal range of human heart rate is typically between 60 and 90 beats per minute. This range is considered normal for adults at rest and can vary slightly depending on factors such as age, fitness level, and overall health. Heart rates below or above this range may indicate underlying health conditions or physical exertion.

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  • 16. 

    How many times does a heart beats in a year assuming that the average heart rate is 80 beats per minute?

    • 10 million times

    • 24 million times

    • 38 million times

    • 42 million times

    Correct Answer
    A. 42 million times
    Explanation
    Assuming the average heart rate is 80 beats per minute, we can calculate the number of beats in a year by multiplying the beats per minute by the number of minutes in an hour (60), the number of hours in a day (24), and the number of days in a year (365). Therefore, the correct answer is 42 million times.

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  • 17. 

    Does the heart produces electricity?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The heart does indeed produce electricity. It generates electrical impulses that control the rhythm and pumping action of the heart. These impulses are generated by specialized cells called pacemaker cells, located in the sinoatrial (SA) node. The electrical signals produced by the heart can be measured using an electrocardiogram (ECG) and are essential for the proper functioning of the heart.

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  • 18. 

    The heart rate for the athletes is?

    • Less than normal human's heart rate

    • The same as the normal human's heart rate

    • Higher than normal human's heart rate

    • None of the above

    Correct Answer
    A. Less than normal human's heart rate
    Explanation
    The correct answer is "Less than normal human's heart rate." Athletes generally have lower resting heart rates compared to the average person. Regular exercise and physical training can result in a stronger and more efficient heart, allowing it to pump more blood with each beat. This leads to a lower resting heart rate as the heart does not need to work as hard to supply oxygen to the body. Therefore, athletes typically have a lower heart rate than the average person.

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  • 19. 

    A heart is an  ______. It ______ the blood around. A stroke happens when there is a ________ in the blood vessels of the brain Fill the question in like This/way/here

    Correct Answer
    Organ/pumps/blood clot
    Explanation
    A heart is an organ that pumps the blood around. A stroke happens when there is a blood clot in the blood vessels of the brain.

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  • Current Version
  • Apr 23, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 20, 2011
    Quiz Created by
    Patrickjuh
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