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Vesna [10]
2 years ago
9

What do cells have in common

Biology
2 answers:
svet-max [94.6K]2 years ago
4 0

Answer:

All cells have these four parts in common: a plasma membrane, cytoplasm, ribosomes, and DNA.

Explanation:

valkas [14]2 years ago
3 0

<em>Answer:</em>

<em>All cells share four common components:  </em>

<em>a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment</em>

<em>  cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found</em>

<em> DNA, the genetic material of the cell</em>

<em>ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.</em>

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If a small droplet of ordinary fat molecules is suspended in water, the fat molecules form a "ball of spaghetti" with no particu
kolbaska11 [484]

Answer:

Option 1, a charged end and a noncharged end

Explanation:

Complete question

If a small droplet of ordinary fat is suspended in water, the fat molecules form a "ball of spaghetti" with no particular orientation. But if a droplet of phospholipid molecules is put in water, all the molecules point outward, toward the water. Phospholipids are forced into this orientation because phospholipids have _____

  1.  a charged end and a noncharged end
  2.  three fatty acid molecules, all pointing in different directions
  3.  two fatty acid molecules pointing in different directions
  4.  both a saturated fatty acid and an unsaturated fatty acid
  5.  two charged ends

Solution

The structure of phospholipids consists of the following groups and molecules –  

a) A glycerol molecule  

b) Fatty acids (2 in numbers) – It is hydrophobic as it is uncharged and non polar in nature

c) Phosphate group (with alcohol) – It is hydrophilic as it is negatively charged and polar in nature.  

When the phospholipids are placed in  water, the molecule rearranges itself in a way that the hydrophobic head face inside and the hydrophilic head face outside thereby forming micelles.

Hence, option 1 is correct

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