Erythrocytes and Some Leukocytes

What are the functions of blood?

1) Transport of nutrients, O2, and CO2 2) Immune/Blood loss Protection 3) Regulation of pH, volume, and temperature

Blood _________ prevents the loss/exit of blood from the organism

clotting

Red blood cells have a ___________ ____ shape.

biconcave disc

What does the biconcave disc shape of blood enable?

1) flexibility to move easily through blood vessels 2) greater surface area, enhancing gas exchange

Red blood cells do not have any _________ or _______, but have a lot of the protein __________.

organelles, nuclei, hemoglobin

Blood hemoglobin is a large _______ composed of 4 subunits: 2 identical ____ subunits and 2 identical ____ subunits.

alpha, beta

Blood hemoglobin has a _________ structure.

quaternary

In the center of a heme group, an _____ is responsible for binding to oxygen, and the iron and oxygen form a bond called a __________ ________ bond.

iron, coordinate covalent

Each heme has an iron atom at its center, so each hemoglobin molecule can bind __ molecules of ______ to be completely saturated.

4, oxygen

Red blood cells and white blood cells come from ________ _________ (stem cells).

common progenitors

Red blood cells come from ______ stem cells.

myeloid

What white blood cells are also produced from myeloid stem cells?

1) Eosinophil 2) Basophil 3) Neutrophil 4) Monocyte)

Lymphocytes have their own stem cell called a __________ stem cell.

lymphoid

Immature red blood cells start with a ______ and then eject it once matured.

nucleus