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3 years ago

true or false: All substances can pass freely between the intracellular and extracellular fluids through a phospholipid bilayer.

Biology

2 answers:

Musya8 [376]3 years ago

7 0

Answer:

False

Explanation:

IF this were true this would jeopardize internal environment of our cells, similar to how not every key opens a key lock, not every molecule has the "key" to enter the intracellular and extracellular fluids through a phospholipid bilayer. Usually small hydrophobic ("water-hating") can pass through the intracellular and extracellular fluids through a phospholipid bilayer.

Komok [63]3 years ago

6 0

Answer:

False

Explanation:

IF this were true this would jeopardize internal environment of our cells, similar to how not every key opens a key lock, not every molecule has the "key" to enter the intracellular and extracellular fluids through a phospholipid bilayer. Usually small hydrophobic ("water-hating") can pass through the intracellular and extracellular fluids through a phospholipid bilayer.

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How many CO2 molecules are produced when three glucose molecules undergo cellular respiration? Explan

Svetlanka [38]

Answer:

<u>18 molecules of </u> $CO_{2}$ <u />

Explanation:

In heterotrophic nutrition, organisms ingest or absorb food made by autotrophs to obtain energy. Planta and other photosynthesizing organisms make sugars via photosynthesis, in a form of (partly) light-dependent biosynthesis.

In mitochondria, they break down sugars through aerobic respiration. For the sugar glucose, this results in the production of carbon dioxide and water along with energy in the form of ATP or adenosine triphosphate.

C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP

glucose+ oxygen → carbon dioxide+ water+ energy

For 3 molecules of glucose, multiply the number of reactants and products...

(C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP ) x 3

Thus...

3 C6H12O6+ 18 O2 → 18 CO2 + 18 H2O + ≅114 ATP

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3 years ago

How is human dna prepared for use in gene transfer?

lilavasa [31]

By cells ,tissues and other cell organelles involved

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4 years ago

To introduce a particular piece of DNA into an animal cell, such as that of a mouse, you would find more probable success with w

Lesechka [4]

The correct answer is option B, that is, electroporation succeeded by recombination.

A usual method of presenting exogenous nucleic acids into cells is known as electroporation. In this, an electric voltage potential is used through a biological membrane, ultimately resulting in the formation of conducting hydrophilic pores. The process of electroporation is utilized for transporting or transfecting nucleic acids generally DNA within the cells, to make them articulate genes that would modify the genetic mechanism.

The transfected DNA can get recombined or incorporated into the host genome or can remain in its own composition. Thus, the process of electroporation straightforwardly permits more recombination to take place.

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4 years ago

Which phrase describes S Waves??

Papessa [141]

S waves can only move along the surface of the planet like ripples on water.

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4 years ago

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Write a paragraph explaining how adhesion cohesion and capillary action all enable water to go from the roots to the top of the

poizon [28]

Adhesion, cohesion and capillary action enable water to go from the roots to the top of the tree due to its specific property.

<h3>How adhesion cohesion and capillary action move water to the top?</h3>

Capillary action helps to bring water to the upper parts from the roots but to a small distance due to strong gravity. In order to get water up to all the branches and leaves, the forces of adhesion and cohesion work together in the plant's xylem to move water to the upper body.

So we can conclude that adhesion, cohesion and capillary action enable water to go from the roots to the top of the tree due to its specific property.

Learn more about adhesion here: brainly.com/question/1214644

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2 years ago

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