A person with cardiovascular disease is at risk of a heart attack. A blood clot may form in one of the arteries that supplies blood to the heart muscle. If the blood clot blocks the artery, blood will be unable to reach some of the cells in the heart. These cells will die due to a lack of oxygen.
Scientists aim to develop a treatment that uses stem cells to replace the cells damaged during a heart attack.
Which of the following statements about cardiovascular disease and possible stem cell treatment after a heart attack is/are correct?
1 Cardiovascular disease is a communicable disease that is caused by the interaction of many factors.
2 Embryonic stem cells could be used for this treatment because they can differentiate into muscle cells in the heart.
3 The treatment to replace damaged cells in the heart with stem cells could increase the risk of cancer developing.

Answer:

1) G

1 – wrong. Cardiovascular disease is a non-communicable disease. It cannot spread from one person to another by interaction. It is also non-pathogenic, meaning that it is not caused by viruses or bacteria or any other microorganism. This is just simple knowledge.
2 – correct. Embryonic stem cells can differentiate into any type of body cell, including cardiomyocytes (heart muscle cells)
3- correct. Stem cells undergo a lot of division (mitosis) and multiply rapidly. This can lead to cancer if the divisions are not controlled as cancer is a disease in which cells grow
uncontrollably.
G is the answer.