Blood proteins play an important part in a. blood clotting, b. immunity, c. maintenance of blood volume, d. all of the above.

Video transcript

Hey, everyone. Let's take a look at this question together, which blood component serves as a medium for transporting various substances throughout the body, including nutrients, hormones, waste products and dissolved gasses. Is it answer choice? A plasma answer choice. B erythrocytes, answer choice C red blood cells or answer choice D platelets. Let's work this problem out together to try to figure out which of the following answer. Choices is the correct answer. So looking at our answer choices and recalling which blood component is involved in any form of transportation, we note that we can eliminate answer choice D platelets since we note that platelets are involved in blood plotting as well as coagulation. Since the platelets aggregate at an injury site to form a plug and help prevent excessive bleeding. And they are not involved in the transportation of various substances. And we know that erythrocytes or red blood cells which are involved in transportation are involved in the transportation of oxygen from the lungs to body tissues and organs and not the transportation of various substances, including nutrients, hormones, waste products, and dissolved gasses. So answer choice B and C are incorrect. Leaving us with the only remaining answer choice which is answer choice A plasma. The correct answer since we note that plasma, which is that liquid component of blood is the medium for transporting these various substances throughout the body. So answer choice A is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.