Question

What are the 2 major organelles in blood? Is it myoglobin and something else?

Answer 1

Blood is liquid connective tissue. It consists of plasma-- the liquid part and corpuscles-- the cells.
Organelles are present within a cell.

Explanation:

Blood do not have myoglobin. Myoglobin is a muscle protein.

Blood consists of plasma the liquid part of blood.
The corpuscles of blood are the cells.
Red blood cells are called erythrocytes . These are more in number, loaded with oxygen carrying pigment protein haemoglobin; hence blood is red in color. Erythrocyte loses its nucleus during maturation.
White blood cells are leucocytes which can travel independently by producing pseudopodia .
Platelets are also present in blood which are cell fragments, without any nuclei.