Using an example from your chosen biome, list the potential biotic and abiotic factors for each level below.

As a molecule moves through the plasma membrane it passes through a hydrophobic layer of phospholipid tails then a hydrophilic l

Firdavs [7]

Answer:

"As a molecule moves through the plasma membrane it passes through a hydrophilic layer of phospholipid heads then a hydrophobic layer of phospholipid tails and then another hydrophilic layer of phospholipid heads".

Explanation:

Biological membranes are formed by two lipidic layers, proteins, and glucans.

Lipids characterize for being amphipathic molecules, which means that they have both a hydrophilic portion and a hydrophobic portion at the same time. These molecules have a lipidic head that corresponds to a negatively charged phosphate group, which is the polar and hydrophilic portion. They also have two lipidic tails that correspond to the hydrocarbon chains -the apolar and hydrophobic portion- of the fatty acids that esterify glycerol.

Membrane lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane.

Through this lipidic bilayer, some molecules can move from one side of the cell to the other, which happens because of concentration differences. When this occurs, molecules must pass through the hydrophilic layer of phospholipid heads then through the hydrophobic layer of phospholipid tails and then again through another hydrophilic layer of phospholipid heads.

3 0

3 years ago

From the position shown on the map toward which landmass is the hurricane most likely traveling

iris [78.8K]

Where is the map? And what map?

5 0

3 years ago

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Which of the following statements is true regarding a recessive trait that is carried on the X chromosome

icang [17]

Answer:

please present the options given so we can better be of assistance

Explanation:

please give the options so we can better be of assistance.

7 0

1 year ago

A ______ Membrane allows some, molecules to cross

krok68 [10]

Answer:

Cell theory

Explanation:

Also known as the cell membrane.

8 0

3 years ago

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The ____________ is the amount of air remaining in the lungs after a forced expiration. The volume of air exchanged during norma

gavmur [86]

The residual air is the amount of air remaining in the lungs after a forced expiration. The volume of air exchanged during normal breathing is called the tidal volume. After a normal inspiration, the amount of air that can then be inspired forcefully is called the inspiratory reserve volume. The total lung capacity minus the residual volume equals the vital capacity. The vital capacity minus the expiratory reserve volume equals the inspiratory capacity. The effects of obstructive disorders, such as asthma or emphysema, may be determined by measuring rapid exhalation with a spirometer.

The lungs are the main organs of the respiratory system. These lungs are also the site of exchange of gases. The air is inspired through the nostrils and this air then reaches the lungs, where the oxygen from air is trapped in the alveoli. This oxygen then diffuses into the bloodstream through capillaries, which is then sent to the heart. From the heart this oxygenated blood travels to different parts of the body. There are several different units of measurement that are used for the measurement of inspired and expired air and their volume.

Learn more about breathing here-

brainly.com/question/3945277

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8 0

2 years ago