Amino acid is to protein as simple sugar is to cellulose.
Amino acids form proteins, the same way simple sugar forms cellulose.
Lipids form fats, it doesn't go the other way round. DNA forms DNA strands, not RNA.
<u>Answer</u>:
<em>Sodium potassium pump works by following several steps.
</em>
<u>Explanation</u>:
<em>1. Carrier protein binds three molecules of Na+
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<em>2. ATP is split, phosphate bonds to carrier.
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<em>3. Carrier protein changes shape, and deposits Na on the outside of the cell.
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<em>4. Carrier binds two molecules of K
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<em>5. Phosphate is released.
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<em>6. Potassium is released inside the cell
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Sodium -potassium pump is essential to maintain the concentration of sodium and potassium outside and inside the cell respectively.
It is the function of sodium potassium pump to transport sodium out of the cell and potassium inside of the cell against a concentration gradient.
<em>Thus it is an active transport mechanism.
</em>
The correct answer is B.
Formation of an embryo begins when the sperm cell meets an egg. When they meet, a zygote is first formed. A zygote is a single diploid cell created when two haploid cells merge.
The zygote begins to divide , and when this division starts, the zygote turns into an embryo. So an embryo is an organism that is at the early stages of development and which is not able to survive on its own.
The term embryo is used only to refer to eukaryotes or organisms that are multi cellular.
The answer is: An organism is born with an adaptation. Therefore, the answer is an organism is born with it (B).
