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tresset_1 [31]
4 years ago
7

WILL BE MARKED BRAINLIEST AND PLUS 12 POINTS

Biology
1 answer:
Levart [38]4 years ago
5 0

Answer:

b

Explanation:

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photosynthesis

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3 years ago
6. Cell membranes are primarily composed of a double layer of phospholipids. Why are phospholipids particularly
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Answer:

B i hope this help

Explanation:

The cell membrane consists primarily of a thin layer of phospholipids which spontaneously arrange so that the hydrophobic "tail" regions are shielded from the surrounding polar fluid, causing the more hydrophilic "head" regions to associate with the cytosolic and extracellular faces of the resulting bilayer. This forms a continuous, spherical lipid bilayer approximately 7 nm thick, barely discernible with a transmission electron microscope.

The arrangement of hydrophilic and hydrophobic heads of the lipid bilayer prevent polar solutes (e.g. amino acids, nucleic acids, carbohydrates, proteins, and ions) from diffusing across the membrane, but generally allows for the passive diffusion of hydrophobic molecules. This affords the cell the ability to control the movement of these substances via transmembrane protein complexes such as pores and gates.

8 0
4 years ago
consider the following sentences. indicate whether each sentence has a truth value and whether each sentence is a statement. wha
oksano4ka [1.4K]

Answer:  This means that this sentence is a statement

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