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4 years ago

Which would least likely be able to cross the phospholipid bilayer of the cell membrane answers?

Biology

1 answer:

ruslelena [56]4 years ago

6 0

Answer;

-Large polar molecule are list likely to cross the phospholipid bilayer.

Explanation;

-A large polar molecule would be the least likely to passively diffuse through a plasma membrane without the help of a transport protein. Both its size and the hydrophobic interior of the membrane would restrict it.

-Only small uncharged molecules can diffuse freely through phospholipid bilayers. Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes.

-Ions and large polar molecules cannot pass through the lipid bilayer. But more specifically, whether a molecule can pass through the membrane depends on its size and its electrical nature.

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Isabella was horrified when her newborn son Matteo became cyanotic immediately after he was born. He was whisked away; when the

Tems11 [23]

Answer:

A new born baby can turn blue when there is not enough oxygen rich blood in his body

Explanation:

TGV - Transposition of the great arteries is a defective heart condition that occurs from birth. The two great arteries are the aorta and pulmonary artery. The aorta carries oxygen-rich blood from the heart to the rest of the body while the pulmonary artery carries oxygen deficient blood from the body to the lungs

Normally the aorta which is supposed to be connected to the left ventricle and supply oxygen rich blood from the heart to the rest of the body is transposed. Meaning that it is instead connected to the right ventricle and carries oxygen-deficient blood to the body.

Conversely in TGV situation, the pulmonary artery is connected to the left ventricle (instead of the right ventricle) and carries oxygen rich (instead of oxygen-deficient) blood to the lungs.

The result is that the new born baby body has oxygen deficient blood and hence begins to burn blue (cyanotic)

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3 years ago

Undifferentiated cells in a tissue that can become specialized cells of that tissue, but not of other tissues, are __________ ce

lara31 [8.8K]

The answer is stem cells, they consist of classes of cells that are undifferentiated and are able to be classified them into types like specialized cells. They consist of having two main sources that will help them develop and mature, these main sources are called the embryonic stem cell and the adult stem cell.

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3 years ago

Is a modular growth strategy better for capturing concentrated resources or widespread (dilute) resources? Briefly explain your

GalinKa [24]

Answer:

The modular type of strategic techniques are highly modular in their working and can be very useful for capturing concentrated resources or widespread (dilute) resources. The modular design in a capturing technique enhances the chances of better resource capturing whether it is concentrated or diluted.

The modular design works like it has several hands, that can perform all of their work by own greatly decreasing time required for capturing.

8 0

3 years ago

Two hawk species are present in the same ecosystem. Hawk A feeds on mice and squirrels, both of which feed on seeds and nuts. Th

guapka [62]

Answer:

Hawk B species help other populations survive by keeping snake predation low.

Complete question and Explanation:

Due to technical problems, you will find the complete question and the explanation in the attached files.

Download pdf

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3 years ago

Different steps of the oxidative decarboxylation of pyruvate by the pyruvate dehydrogenase pdh complex are given. Place these fi

zhannawk [14.2K]

Different steps of the oxidative decarboxylation of pyruvate by the pyruvate dehydrogenase pdh complex are given by placing them in the order as followed.

<h3>What is Oxidative decarboxylation?</h3>

The Oxidative decarboxylation reactions are oxidation reactions wherein a carboxylate institution is removed, forming carbon dioxide. They regularly arise in organic systems: there are numerous examples withinside the citric acid cycle. This sort of response probable began out early on the starting place of life.

Pyruvate reacts with TPP and is decarboxylated, forming hydroxyethyl-TPP.
The lipoamide arm movements to the energetic E underline three in which the decreased lipoamide is oxidized through FAD, forming the energetic lipoamide and triangle down ADH2 .
ADH_ is reoxidized to FAD, lowering NAD to NADH.every so often known as thiamine.
The acetyl lipoamide arm of E_ movements to the energetic of E_ , in which the acetyl institution is transferred to CoA forming acetyl-CoA and the decreased shape of lipoamide.