Which of the following is a characteristic of proteins?

1 answer:

7 0

It's e because it's a long Chain of carbon and hydrogen. It helps the rate of the metabolism allowing to digest quicker in your small intestent.

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charle [14.2K]

Answer:

response to stimuli

Explanation:

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3 years ago

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Describe the formation for a meander

jeka57 [31]

A meander forms when moving water in a stream erodes the outer banks and widens its valley, and the inner part of the river has less energy and deposits silt. A stream of any volume may assume a meandering course, alternately eroding sediments from the outside of a bend and depositing them on the inside.

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3 years ago

The contemporary description of the membrane structure of a cell is known as the _____________. endosymbiont hypothesis fluid-mo

jeka57 [31]

The answer to this question is "fluid mosaic model". We are being asked the question above and the complete sentence is below:
The contemporary description of the membrane structure of a cell is commonly known as the FLUID MOSAIC MODEL.

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3 years ago

The probability of a ___________ channel being open is controlled by the membrane potential.

Anna11 [10]

Answer:

(b) Voltage gated

Explanation:

The cell membrane acts as a barrier that separates two aqueous media of different composition, the extracellular and the intracellular, regulating its composition. Most of the liposoluble drugs and solutes, when not ionized, directly cross the cell membrane through a passive diffusion process, which facilitates the passage of the medium where it is more concentrated to the one that is more diluted. The difference in concentration between the two media is called the concentration gradient, and diffusion will continue until this gradient is eliminated. According to Fick's law, the speed of this process will be much faster the higher the concentration gradient and the liposolubility of the molecule and the smaller its size.

More hydrophilic molecules, such as ions, are immiscible in membrane lipids and pass through specific specific transport mechanisms. In some cases, ions pass through hydrophilic pores called ion channels, and in others a favor of their concentration gradient is transported by binding to the transporter or transporter proteins. Both transport systems are passive and therefore do not consume energy. The great advantage is that the ion channels allow the flow of ions through a much higher speed than that of any other biological system. The flow of ions through each channel can be measured as an electric current, which is capable of producing rapid changes in membrane potential.

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3 years ago

Human activity, such as the burning of coal and oil, refining petroleum in factories has impacted which of the following

Zarrin [17]

Answer:

carbon cycle

Explanation:

Carbon is an essential element in the bodies of living organisms. It is also economically important to modern humans, in the form of fossil fuels.

Carbon dioxide—\text {CO}_2CO

start text, C, O, end text, start subscript, 2, end subscript—from the atmosphere is taken up by photosynthetic organisms and used to make organic molecules, which travel through food chains. In the end, the carbon atoms are released as \text {CO}_2CO

start text, C, O, end text, start subscript, 2, end subscript in respiration.

Slow geological processes, including the formation of sedimentary rock and fossil fuels, contribute to the carbon cycle over long timescales.

Some human activities, such as burning of fossil fuels and deforestation, increase atmospheric \text{CO}_2CO

start text, C, O, end text, start subscript, 2, end subscript and affect Earth's climate and oceans.

4 0

3 years ago

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