One of the roles of iron in the human body is to:
A) promote the breakdown of older bones.
B) provide structural rigidity to proteins.
C) transport oxygen and carbon dioxide in the blood.
D) help in the elimination of water.
Q. 2_____ is an intestinal protein that regulates the amount of zinc released into the blood.
A) Insulin
B) Ceruloplasmin
C) Metallothionine
D) Myoglobin
Q. 3Which of the following is true of phosphorus?
A) Phosphorus is readily absorbed in the large intestine.
B) The primary role of phosphorus in the body is as a component of muscle fibers.
C) Phosphorus is involved in hundreds of metabolic reactions, for which it activates molecules.
D) The bioavailability of phosphorus from plant-based foods is higher than that of animal-based foods.
Q. 4Which of the following is a trace mineral?
A) Selenium
B) Calcium
C) Phosphorus
D) Magnesium
Q. 5Linda is conducting a research study on osteoporosis, and she wants her study to create awareness among those most affected by the disease. In this scenario, her target group would most likely be:
A) women with high levels of estrogen.
B) people who are teetotalers.
C) men who do regular physical activity.
D) people who are old.
Q. 6Ryan, an 8-year-old boy, has the habit of swallowing toothpaste. As a result, his teeth have become discolored. It can be said that Ryan's teeth condition is caused by:
A) inadequate sodium intake.
B) fluoride deficiency.
C) excessive fluoride intake.
D) high bone density.
Q. 7Excess manganese is:
A) expelled in the breath.
B) excreted in the feces.
C) stored in the liver.
D) incorporated into ferritin.
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