Nutrition: Concepts and Controversies
13th Edition
ISBN: 9781133603184
Author: Frances Sizer, Ellie Whitney
Publisher: Cengage Learning
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Chapter 6, Problem 2SC
Summary Introduction
Introduction:
Proteins are complex macromolecules composed of amino acids. They play a crucial role in several biological processes and are required for the proper development and function of the human body’s tissues and organs.
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Which of the following statements is INCORRECT about how the components of hemoglobin are recycled?
a. Iron ions are either stored in a phagocytic cell or circulate in the blood, bound to transferrin (a plasma protein).
b. Each heme is stripped of its iron and converted to bilirubin, then excreted in bile.
c. The alpha and beta chains are released into the bloodstream for use by other cells.
d. Hemoglobin can be recycled only if phagocytized by macrophages.
Match the following with its function:
v plasma protein that creates osmotic pressure that prevents fluids from leaking
out of blood vessels (prevents edema)
albumin
A.
fibrinogen
В.
plasma protein that helps cause blood clotting
c. platelets
Formed element that causes blood clotting.
white blood cells
D.
Formed element important in the immune system.
red blood cells
Е.
formed element that carries oxygen
hemoglobin
F.
protein that binds to oxygen
>
>
Which of the following is the metabolic conversion of bilirubin in the small intestine
a. Macrophages
b. Urobilinogen
c. Hemoglobin
d. Neutrophils
Chapter 6 Solutions
Nutrition: Concepts and Controversies
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