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Mariana [72]
3 years ago
7

Write a short paragraph describing the role of all four types of lipids: fats, phospholipids, waxes, and steroids.

Biology
1 answer:
Ray Of Light [21]3 years ago
8 0
Fats <span>store energy, provide insulation and protect our vital organs. Phospholipids are an essential component of the cell membrane and play a key role</span> in controlling the entry and exit of molecules and ions. Waxes are produced by many organisms as a protective layer against the outside environment, and can be used for example providing waterproofing to bird feathers. Steroids have various functions for maintaining homeostasis within organisms.<span> </span>
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Transport of a substance from the lumen (cavity) of an organ into one side of a cell and out the other side of the cell into the
Feliz [49]

Transport of a substance from the lumen (cavity) of an organ into one side of a cell and out the other side of the cell into the extracellular fluid is called <u>transcellular transport</u>.

The two routes of transport of substances across the epithelium of the gut are by transcellular method and paracellular method.

Transcellular transport refers to the transport of solutes across a epithelial cell layer through the cells.  The best example is the movement of glucose from the intestinal lumen to the extracellular fluid by the epithelial cells. The epithelial cells use the active transport to generate the transcellular transport. Active transport refers to the transport of substances from a region of its lower concentration to a region of its higher concentration against the concentration gradient using cellular energy.

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3 years ago
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3 years ago
Behavioral science includes the fields of psychology, marketing, accounting, and geology. True or False True False
DanielleElmas [232]
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3 years ago
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Dennis_Churaev [7]

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Draw the indicated parts of a karyotype of a child born with Down syndrome and respond to
loris [4]

The karyotype of a child born with Down syndrome includes a trisomy in chromosome number 21. The rest of the karyotype remains normal.

<h3>What is a karyotype?</h3>

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In humans, somatic cells are diploids, thereby karyotypes will be formed by two sets of homo-logous chromosomes.

Down syndrome is caused by the presence of an additional chromosome number 21, and therefore the karyotype will exhibit three (trisomy) 21 chromosomes.

Learn more about karyotypes here:

brainly.com/question/1327739

6 0
2 years ago
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