Which gases are carried by red blood cells. check all that apply

The correct answer would be oxygen and carbon dioxide.

The main function of Red Blood Cells (RBCs) or erythrocytes is to transport oxygen from the lungs to all cells of the body. In addition, it transports carbon dioxide from cells to the lungs from where it is exhaled out.

RBCs contain iron containing biomolecule termed as hemoglobin. It can bind to oxygen as well as carbon dioxide in a reversible manner. It depends upon the partial pressure of the gases in a cell.

For example, at the alveolar site, the partial pressure of oxygen is high which increases the efficiency of hemoglobin towards oxygen. Oxygen then binds with hemoglobin in a reversible manner to form oxyhemoglobin.

At the cellular site, the partial pressure of carbon dioxide is higher as compared to that of oxygen. Consequently, oxygen is released and hemoglobin binds with carbon dioxide to form carbamino-hemoglobin.

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

ans.

in united states (us), the first leading cause of death for both women and men is heart diseases that leads to more than half of the deaths. heart diseases develop due to narrow arteries, buildup of plaque in blood capillaries that arises difficulties in blood flow.

the second leading cause of deaths in us is cancer that affects individuals of all ages. it develops due to uncontrolled growth and spread of tumor cells, which results in death if the not controlled or treated.

the third leading cause of deaths in us is copd or chronic obstructive pulmonary disease. it includes difficulty in breathing, chest infections, and persistent cough. smocking is a leading cause of copd and around 80% of copd deaths occur due to smoking.

thus, the correct answer is 'option). cancer, copd, and heart disease.'