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navik [9.2K]
3 years ago
10

What two macromolecules make up the plasma membrane?

Biology
1 answer:
adoni [48]3 years ago
8 0

Answer:

proteins and lipids/phospholipid

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A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.

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When will chloroplasts be aligned with their flat surfaces parallel to the walls in mesophyll cells? When will they be perpendic
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Answer:

Flat surface parallel to mesophyll walls  position

Chloroplast assumed this position  in condition <u>of low  light intensities or optimum light intensities</u>   for the reception of maximum amount of incident light. necessary for photosynthesis

Perpendicular to the incident light position.

During condition of <u>extreme high light intensit</u>ies chloroplast  aligned in this position to avoid the loss of electrons from the chlorophyll from absorption of photons; (PHOTOXODATION.)  

Basically photooxdation is a wasteful process which destroys the plants.

Explanation:

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