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What percent of the mass of bone is a compound called hydroxyapatite?
Hydroxyapatite makes up about 65-70% of the mass of bone. It is a mineral compound primarily composed of calcium and phosphate that provides bone with its strength and hardness.
What are two minerals that make up most of the mass of bone?
We have to consider that the bone is a very dense, specialized form of connective tissue. Like reinforced concrete of building constructions, bone matrix is predominantly a mixture of tough fibers, such as, type I collagen fibrils, which resist pulling forces; and solid particles, e.g., calcium phosphate as hydroxyapatite crystals, which resist compression. Both volumes in the bone, collagen and calcium phosphate, are nearly equal.
What percent of bone tissue is replaced each year?
Osteoporosis is a skeletal disorder characterized by low bone mass, ... ofestrogen replacement therapy, from 3 percent to 7 percent per year, building to15 percent ... a decrease in the replacement of old bone with new bone tissue
Is mass percent the same as percent by mass?
Yes, mass percent and percent by mass are the same concept. Both terms refer to the percentage of a component in a mixture by mass.
What is peak bone mass?
Peak bone mass occurs at ~30 years of age. Afterwards, bone loss starts to outpace bone deposition.
Bernard's star has a mass of how many times the mass of sun?
15-17 percent of the mass of the Sun.15-17 percent of the mass of the Sun.15-17 percent of the mass of the Sun.15-17 percent of the mass of the Sun.
What is the medical term meaning abnormal reduction of bone mass?
Osteopenia is an abnormal reduction in bone mass.
Percent composition is expressed as a percent by?
Percent composition is usually expressed as a percent by mass, but in the case of gases and vapors, it is often expressed as a percent by volume.
What is the equation used to calculate percent by mass?
Percent by mass = (100) times (mass of the ingredient of interest) divided by (mass of the whole mixture)
How much should bone mass weigh?
Bone mass should typically make up 20% of your total body weight.
What is the mass percent of oxygen?
The mass percent of oxygen is approximately 21% in Earth's atmosphere.
How does increased osteoblast activity affect bone tissue?
increased bone mass
