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3 years ago

Which of these is not a potential use for stem cell therapy?

Chemistry

1 answer:

tensa zangetsu [6.8K]3 years ago

4 0

Answer:

The correct answer is option D) "all of these are potential uses".

Explanation:

Stem cell therapy is a promising technology based on stem cells capacity of dividing in practically any cell type in the body. Stem cell therapy can help cure Alzheimer's disease, since it could potentially replace the neuron cells that are lost in this disease. This therapy can help with bone marrow transplants, by synthesizing bone marrow in vitro instead of looking for donors. Stem cell therapy can also help to test new medications, since the tests often require to prove new drugs toxicity, and stem cells can be used for this purpose.

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What is the moment for the left hand side of this balance?

aleksklad [387]

Answer:

Explanation:

6 (weights) x 3 (distance) = moment

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3 years ago

Chemical formula of tetraphosphurus octasulfide

Firlakuza [10]

Answer:

Explanation: Does any of this look right? To be honest I just looked it up.

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4 years ago

10. A small gold nugget has volume of 0.87 cm3. What is its mass if the density of gold is 19.3 g/cm3?

bulgar [2K]

Answer:

16.791 grams

Explanation:

The density formula is:

$d=\frac{m}{v}$

Rearrange the formula for m, the mass. Multiply both sides of the equation by v.

$d*v=\frac{m}{v}*v$

$d*v=m$

The mass of the gold nugget can be found by multiplying the density and volume. The density is 19.3 grams per cubic centimeter and the volume is 0.87 cubic centimeters.

$d= 19.3 g/cm^3\\v-0.87 cm^3$

Substitute the values into the formula.

$m=d*v$

$m= 19.3 g/cm^3*0.87 cm^3$

Multiply. Note that the cubic centimeters, or cm³ will cancel each other out.

$m=19.3 g*0.87$

$m=16.791 g$

The mass of the gold nugget is 16.791 grams.

8 0

3 years ago

Classify each amino acid according to whether its side chain is predominantly protonated or deprotonated at a pHpH of 7.40.7.40.

Zepler [3.9K]

Answer: His and Lys are deprotonated but Asp will be protonated.

Explanation:

As the pH is given as 7.4 and pK of His is given as 6.00. There will occur a positive charge on His when it's pH < pK therefore, it is neutral at the given pH.

As the pK value of Lys is 10.53 that is greater than the pH of 7.40. Therefore, charge on Lys is positive.

As the pK value of Asp is 3.65 which is less than the pH value of 7.40. Hence, Asp has a negative charge.

Therefore, we can conclude that His and Lys are deprotonated but Asp will be protonated.

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4 years ago

Which of the following is not something that should be considered when creating a debt payment plan?

Svetach [21]

Answer:

a. In general, the larger the debt, the longer you should plan to take to pay it off.

When paying off debt consider the interest rates. C., and D. are just facts.

4 0

3 years ago

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