A 100 Ml Sample of Water Is ?Ltered Through a Sterile

question 80

Multiple Choice

A 100 ml sample of water is ?ltered through a sterile membrane, and the membrane is transferred to a plate of m-Endo agar. Following overnight incubation at 37°C, 57 green metallic colonies appear. The coliform count is _______.

• A) 0.57 per 100 ml
• B) 57 per 100 ml
• C) 5700 per 100 ml
• D) too numerous to count

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Definitions:

Right Ventricle

The lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it to the lungs for oxygenation.

Metarterioles

Small blood vessels that function as intermediaries between arterioles and capillaries, controlling blood flow into capillary beds with precapillary sphincters.

Capillary

The smallest blood vessels in the body, which connect arteries and veins, facilitating the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and surrounding tissues.

Inferior Vena Cava

A large vein that carries deoxygenated blood from the lower and middle parts of the body to the right atrium of the heart.