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saw5 [17]
3 years ago
15

Describe DNA’s important genetic role in a few sentences below.

Biology
2 answers:
Westkost [7]3 years ago
7 0
Its what makes you well you dna comes form your parents 
Ber [7]3 years ago
3 0
There r 4 types of nytrogen bases adenine ,thymine, guanine, and cytosine
its role is making who u r as a living pearson
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When glucose is converted to ethanol by yeast (as in the production of beer) how much of the chemical energy that was originally
aniked [119]

Answer:

<h2>92%</h2>

Explanation:

When glucose is converted to ethanol by yeast, one mole of glucose is converted  into two moles of ethanol and two moles of carbon dioxide,  

and this process produce two moles of ATP.  

C6H12O6 → 2 C2H5OH + 2 CO2

When glucose is converted to ethanol by yeast (as in the production of beer) 92% of the chemical energy that was originally stored in glucose still remains in the end product, ethanol, that is produced.

6 0
3 years ago
The prolonged electrical depolarization of cardiac muscle cells that occurs during contraction is due primarily to the persisten
luda_lava [24]

Answer:

The prolonged electrical depolarization of cardiac muscle cells -that occurs during contraction- is due primarily to the persistent influx of calcium ion

Explanation:

The action potential of the heart muscle is longer with respect to skeletal muscle (around 300 milliseconds), and this is due to the activity of calcium (Ca⁺⁺ ) in the intracellular compartment.

The initial depolarization of cardiac muscle fiber depends on the entry of sodium (Na⁺) into the cell. However, for the action potential to occur and be maintained, Ca⁺⁺  must increase its cytoplasmic levels, which depends on:

  1. The increase in intracellular sodium induces the release of Ca⁺⁺ from the sarcoplasmic reticulum.
  2. Calcium entry from the extracellular space through the voltage dependent Ca⁺⁺ channels.
  3. The entry of extracellular Ca⁺⁺ causes the release of more Ca⁺⁺ ions by the sarcoplasmic reticulum, further increasing its intracellular concentration.

This is how the ion that guarantees the duration of the action potential of the cardiac muscle cell is the Ca⁺⁺.

Learn more:

Calcium, sodium and cardiac muscle cells brainly.com/question/4473795

4 0
3 years ago
All atoms of the same element contain the same number of
Luda [366]

Answer: The answer is B while neutrons and electrons are usually the same in a given atom protons are always consistent.

5 0
3 years ago
What do ethical theories attempt to do?
umka2103 [35]
There are two a and c just pick one
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Where is Saturn located within our solar system?
m_a_m_a [10]
Between Jupiter and Uranus
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