WorksheetsChapter 9- Nutrients Essential to Healthy Tissues
Total questions: 10
Worksheet time: 5mins
Which of the following statements about iron is true?
Iron picks up oxygen in the lungs, binds it to cytochromes in red blood cells, and exchanges it for carbon dioxide in the liver
About two-thirds of the body's iron is found in hemoglobin, the oxygen-carrying compound in red blood cells
Heme iron is available only from animal-based foods, and non-heme iron is available only from plant-based foods
The primary cause of iron toxicity is overconsumption of red meat
Abnormally small red blood cells are characteristic of
iron-deficiency anemia
sickle cell anemia
pernicious anemia
megaloblastic anemia
The micronutrient mist closely associated with blood clotting is
folate
vitamin K
vitamin B6
vitamin B12
Which of the following is a function of vitamin C?
Helps regulate blood calcium levels
Acts as a coenzyme in the synthesis of ascorbic acid
Acts as a coenzyme in the synthesis of procoagulant proteins
Is essential for the synthesis of collagen
Which of the following statements about trabecular bone is true?
It accounts for about 80% of the skeleton
It is also called compact bone
It has a faster turnover rate than cortical bone
It is not subject to remodeling
Calcium is necessary for several body functions, including
demineralization of bone, nerve impulse transmission, and immune responses
structure of collagen and cartilage, nerve impulse transmission, and muscle contraction
structure of bone, nerve, and muscle tissue; immune responses; and muscle contraction
structure of bone, nerve impulse transmission, muscle contraction, and blood clotting
Which of the following is a function of vitamin D and parathyroid hormone (PTH)?
They regulate the absorption of calcium and phosphorus from the small intestine
They regulate the liver's reabsorption of calcium
They stimulate the release of thyroid hormones from the thyroid gland
They stimulate the activity of osteoclasts when blood calcium levels become excessively high
Which of the following individuals is most likely to require vitamin D supplements?
a dark-skinned child is living and playing outdoors in Hawaii
a fair-skinned construction worker living in Florida
a fair-skinned retired teacher living in a nursing home in Ohio
none of the above individuals is likely to require vitamin D supplements
Copper deficiency can result in accumulation of iron in the body.
True
False
Our body can absorb vitamin D from sunlight.
True
False
