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3 years ago

Why is the ability of the cell membrane to be "picky" important?

Biology

1 answer:

Yuliya22 [10]3 years ago

5 0

Answer:

Hi there!

Your answer is:

It is very important for the cell membrane to be semi-permeable because the ability to pick and choose what comes in and out of the cell keeps the cell safe! The membrane can choose to block out nasty germs and can also choose to get rid of internal waste.

An example of when this is important is in this scenario:

Let's say the cells are in a really salty solution. Naturally, salt will want to pull the water out of the cell. If the membrane wasn't semi permeable, the water would listen to the salt and leave the cell. This would cause cell death. BECAUSE the membrane is semi permeable, they can choose not to give the salt any water, keeping them alive

Hope this helps

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According to the theory of plate tectonics, which is one feature that plates carry?

Phoenix [80]

Answer:

seafloor

Explanation:

A plate, often described as a lithospheric plate, with seafloor, continents and mountains on top of it.
The earth is divided into three layers based on their chemical composition. Undoubtedly, there is a component called the lithosphere.
The lithosphere consists of a crust and a portion of a solid upper mantle.
Below the lithosphere is the asthenosphere.
There are two types of crusts: the continental crust and the oceanic crust.
Where there is a seabed there is a sea crust.
Mountains are also found in oceanic and continental crusts.
The intercontinental layer corresponds to the continents.

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3 years ago

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How many different codons can code for the amino acid tryptophan (Trp)?

Minchanka [31]

The chart very nicely lays out the amino acid each codon corresponds to. You're looking for "trp" in the chart, which only appears once, beside the UGG codon. Therefore, only one codon codes for tryptophan.

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2 years ago

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A manager wanted to test whether the amount of noise in a clothing factory affected how

Vitek1552 [10]

Answer:

When seeking to determine the number of shirts made by employees subjected to noise with and without the use of headphones, the independent variable is the amount of noise.

Explanation:

During an investigation, the independent variable may be subject to change, in order to observe the effect it will have on the dependent variable.

In the case presented, the amount of noise to which employees are exposed represents the independent variable, which is modified by the use of headphones that block all or part of the noise.

The productivity —expressed in the number of shirts made— can be expected to be higher for employees not exposed to noise.

Other options do not apply because:

The number of shirts made by the employee. Dependent variable .
The type of music the employees listen to while they work or the amount of training employees need. These are not the variables studied.

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2 years ago

What happens during evaporation? water falls from the atmosphere to the ground water vapor changes into a liquid and forms cloud

motikmotik

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Zolol [24]

Answer:

No help is received in 30 minutes. A person with A type of Blood safely received type O Blood No.

Explanation:

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2 years ago