What is the function of glycoproteins found on the Extracellular Matrix (ECM) of animal cells? A.
Transport of large polar molecules through the membrane

B.
support

C.
receptors specialized in cell to cell recognition

D.
Enzymatic reactions

C

Explanation:

There are many different unique kinds, so they are ideal ID-tag-like molecules.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

yes? sounds right, but you didn’t ask a question.