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Nat2105 [25]
3 years ago
5

Which one of the following phrases best describes the human karyotype?

Biology
1 answer:
nikitadnepr [17]3 years ago
4 0
One sex pair chromosomes and 22 pairs of autosomes 
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Organic compounds ALL contain the element carbon. Which organic compound, used for stored chemical energy, contains
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The correct option is <u>B. Lipids</u>

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Lipids can be described as molecules which dissolve in non-polar solvents and cannot dissolve in water. The biological function of a lipid molecule is to store energy as well as to structure the shape of cell membranes. Lipids are also used in a cell for signalling.

Lipids are made up of carbon, hydrogen and oxygen. Some lipids might have phosphorus in them like the phospholipids which make up the cell membrane.

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In facilitated diffusion, do molecules move down their concentration gradient? Explain.
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In facilitated diffusion, substances move into or out of cells down their concentration gradient through protein channels in the cell membrane. Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient.
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Cell division

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4.) This means that height in a rat is controlled by many different genes.

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