Lernkarten
vitamins are classified as
organic and inorganic
fat-soluble and water-soluble
essential and non-essential
elements and compounds
vitamin D is called the sunshine vtamin because
it is available in orange juice
exposure to sunlight converts a a precursor to vitamin D
it can be destroyed by exposure to sunlight
all of the above
vitamin E functions as
a coenzyme
an antioxidant
a hormone
a peroxide
a deficiency of vitamin A can lead to the disease called
xerophthalmia
osteomalacia
scurvy
pellagra
a high intake of vitamin E can
inhibit vitamin K metabolism
lead to lead poisoning
inhibit copper absorption
cause baldness
a vitamin synthesised by bacteria in the intestine is
vitamin A
vitamin D
vitamin E
vitamin K
Bowed legs, an enlarged and mishapen head and enarged knee joints in children are all symptoms of
rickets
xerophthalmia
osteoporosis
vitamin D toxicity
Thiamin, riboflavin and niacin are calle the "energy" vitamins because they
can be broken down to provide energy
are coenzmyes needed for release of energy from carbohydrates, fats, and proteins
are ingredients in energy drinks such as Powerade
are needed in large amounts by competitive athletes
A defient intake of _________ has been shown to increase the ris kof having a baby with a neural tube defect suc has spina bifida
vitamin A
vitamin C
vitamin E
folic acid
Vitamin C is necessary for the production of
stomach acid
collagen
hormones
clotting factors
Dietary ham iron is derived from
elemental iron in food
animal flesh
breakfast cereals
vegetables
Chloride is
a component of hydrochloric acid
an intracellular fluid iron
a positively charged ion
converted to chlorine in the intestinal tract
Minerlas involved in fluid balance are
calcium and magesium
copper and iron
calcium and phosphorus
sodium and potassium
In a situation where there is an insufficient intake of dietary iodine, the thyroid-stimulation hormone promotes the enlargemnet of the thyroid gland. This condition is called
graves disease
a goitre
hyperparathyroidism
congenital hypothyriodism (cretinism)
99% of the calcium in the body is found in
intracellular fluid
bones and teeth
nerve cells
the liver
At the end of long bones, inside the spinal vertebrae and inside flat bones of the pelvis, is a spongy type of bone known as _____ bone.
osteoclastic
osteoblastic
trabecular
compact
Which compartement contains the greatest amount of body fluid?
intracellular
extracellular
they contain the same amount
The primary function of sodium is to maintain
bone mineral content
haemoglobin concentration
immune function
fluid distribution
Hypertension is defined as a blood pressure greater than
110/60
120/65
140/90
190/80
Which of the following individuals are most likely to develop osteoporosis?
premenopausal women athlets
women taking oestrogen replacemnet therapy
slender, inactive women who smoke
women who eat a lot of high-fat dairy products
