In addition to blood, the circulatory system moves lymph, which is a clear fluid that helps rid the body of unwanted material. The heart, blood, and blood vessels make up the cardiovascular component of the circulatory system.It includes the pulmonary circulation, a loop through the lungs where blood is oxygenated.he pulmonary circulatory system sends oxygen-depleted blood away from the heart through the pulmonary artery to the lungs and returns oxygenated blood to the heart through the pulmonary veins, according to the Mayo Clinic.
You won't believe these 10 facts about people. Euchromatin is a substance composed of DNA and protein molecules that makes up the bulk of material within a mammalian cell nucleus.It is one particular type of chromatin that is distinguished from heterochromatin both by its function and location.ou won't believe these 10 facts about people. Euchromatin is a substance composed of DNA and protein molecules that makes up the bulk of material within a mammalian cell nucleus.
Chromatin. The nucleus contains the chromosomes of the cell. Each chromosome consists of a single molecule of DNA complexed with an equal mass of proteins. Collectively, the DNA of the nucleus with its associated proteins is called chromatin.Most of the protein consists of multiple copies of 5 kinds of histones.These are basic proteins, bristling with positively charged arginine and lysine residues.ach chromosome consists of a single molecule of DNA complexed with an equal mass of proteins. Collectively, the DNA of the nucleus with its associated proteins is called chromatin. Most of the protein consists of multiple copies of 5 kinds of histones.