Question

1. although plasma is ______ percent water, it also transports

a. 20%, lymphocytes, bone particles
b. 50%, oxygen, carbon dioxide
c. 90%, nutrients, wastes
d. 70%, cells, proteins

Explanation:

Plasma, the liquid part of blood, is about 90% water. It transports nutrients (like glucose, amino acids) and wastes (like urea). Option a is incorrect as plasma isn't 20% water and doesn't transport bone particles. Option b is wrong since plasma is not 50% water, and oxygen/carbon dioxide are mainly transported by red blood cells. Option d is incorrect as plasma is not 70% water and doesn't transport cells (cells are in plasma but not transported by it in that sense, and proteins are part of plasma but the water percentage is wrong).

Answer:

c. 90%, nutrients, wastes