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Amiraneli [1.4K]
3 years ago
15

Which is visible to the naked Which is visible to the naked eye? A. atoms B. chemical bonds C. attractive forces D. substances t

hat atoms make up
Biology
1 answer:
damaskus [11]3 years ago
5 0
D. Substances that atoms make up
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Why is there more creatine kinase in dmd muscles compared to average muscles
Nastasia [14]

Answer:

Explanation:

Almost everyone with a neuromuscular disorder has had, or will have, a creatine kinase test. But what exactly is creatine kinase (CK), and why are its levels measured in neuromuscular diseases?

CK, also known as phosphocreatine kinase, or CPK, is a type of protein called an enzyme. It catalyzes, or "encourages," a biochemical reaction to occur. The normal function of CK in our cells is to add a phosphate group to creatine, turning it into the high-energy molecule phosphocreatine. Phosphocreatine is burned as a quick source of energy by our cells.

However, the normal function of CK isn't as relevant, in this case, as what happens to CK when muscle is damaged. During the process of muscle degeneration, muscle cells break open and their contents find their way into the bloodstream. Because most of the CK in the body normally exists in muscle, a rise in the amount of CK in the blood indicates that muscle damage has occurred, or is occurring.

To measure CK levels, a blood sample is taken and separated into fractions that contain cells and a fraction that doesn't — the serum. The amount of CK in the serum is reported in units (U) of enzyme activity per liter (L) of serum. In a healthy adult, the serum CK level varies with a number of factors (gender, race and activity), but normal range is 22 to 198 U/L (units per liter).

Higher amounts of serum CK can indicate muscle damage due to chronic disease or acute muscle injury. For this reason, if you're scheduled to have blood drawn for a CK test to diagnose a potential muscle disorder, you should limit your exercise to normal activities before the test.

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3 years ago
bio 102 The atmospheric ozone layer has been __________since the banning of CFCs (chlorofluorocarbons), but a recent report sugg
sergiy2304 [10]

Answer:

protected; increase

Explanation:

Ozone is composed of trioxygen which is highly reactive gas compared to dioxygen. Ozone layer is present in stratosphere and troposphere and protect the humans from ultraviolet radiations but it may be toxic if inhaled. Ozone can be broken down into molecular oxygen by chlorine and bromine atoms.

A hole was discovered in ozone layer in 1982 and scientist believed that it could be dangerous for human health. The compounds involved in depletion of ozone are mainly Chlorofluorocarbons (CFS) and (HFCS). Then a global agreement was signed in 1987 which leads to prohibition of use of all chemicals that are involved in depletion of ozone layer. The problem of ozone depletion is solved by the agreement and ozone hole started to recover it from 2000.

But recent reports showed that the alternative chemicals used to protect the depletion of ozone layer began to trap the heat inside the earth like greenhouse effect. Now scientists are in search of chemical that can prevent both ozone depletion as well as global warming.

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3 years ago
Differentiate between fraud and abuse, making sure to provide an example of each. does one occur more frequently in the medical
Stolb23 [73]

 I think it would be hard to get this one right


3 0
3 years ago
When researchers create __________, they are destroying a piece of the brain. A. Holes B. Currents C. Images D. Lesions Please s
Ira Lisetskai [31]
When researchers create lesions, they are destroying a piece of the brain.

8 0
2 years ago
In pea plants, green peas is a dominant trait and yellow pea pods is recessive. A plant with green pods is crossed with a plant
klio [65]

Answer:

The genotype of each parent plant is 1:2:1

Explanation:

I don't say you have to mark my ans as brainliest but my friend don't forget to thank me if it has really helped you....

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