Circulation & Immunity Crossword Puzzle

QUESTIONS LIST:

• pasteurization : process in which a liquid is heated to a temperature that kills most bacteria
• tissue : a group of similar cells that work together to do one job
• allergen : substance that causes an allergic reaction
• antigen : complex molecule that is foreign to your body
• capillary : blood vessel that connects arteries and veins
• active immunity : long-lasting immunity that results when the body makes its own antibodies in response to a specific antigen
• plasma : the liquid part of blood, which is made mostly of water
• hemoglobin : a molecule in red blood cells that carries oxygen and carbon dioxide
• enzyme : a type of protein that regulates chemical reactions in cells without being changed or used up itself
• infectious : disease caused by a virus, bacterium, fungus, or protest that is spread from one person to another
• artery : blood vessel that carries blood away from the heart
• vein : blood vessel that carries blood to the heart
• antibody : a protein made in response to a specific antigen that can attach to the antigen and cause it to be useless
• virus : a strand of hereditary material surrounded by a protein coating
• platelet : irregular shaped cell fragments that help clot blood
• lymph : fluid that has diffused into the lymphatic capillaries