List 2 proteins that transport oxygen in the body and describe which mineral is essential for these proteins to function.
What will be an ideal response?
Iron is an essential part of 2 proteins, hemoglobin and myoglobin, that are involved in the transport and metabolism of oxygen. Hemoglobin, which is found in erythrocytes (red blood cells), is composed of 4 iron-containing heme compounds that each bind 1 molecule of oxygen (Fig. 15-3). As a component of hemoglobin, iron carries oxygen in the blood from the lungs to all tissues of the body. It also transports carbon dioxide back to the lungs for expiration. Because the body produces approximately 200 billion erythrocytes each day, much of the body's iron is contained in hemoglobin. If the oxygen-carrying capacity of erythrocytes declines, the kidneys produce the hormone erythropoietin, which stimulates the bone marrow to produce more red blood cells (Fig. 15-4). This, in turn, increases the body's need for iron to support hemoglobin production.
Iron has a similar oxygen-carrying role in myoglobin, a protein in muscle cells.
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A) interstitial fluid B) intracellular fluid C) intravascular fluid D) ionic fluid
Describe the two major pathways for metabolism of alcohol in the liver. How does the liver adapt when forced to metabolize high quantities of alcohol on a daily basis?
What will be an ideal response?
Human taste panels are required to evaluate products using various types of established scientific objective tests
Indicate whether the statement is true or false
The consumption of individual amino acids ________.
A. may lead to an increase in appetite B. is recommended as safe by the FDA C. may lead to a cardiopulmonary disorder known as eosinophilia-myalgia syndrome D. may interfere with the absorption of other essential amino acids