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dem82 [27]
2 years ago
12

Which of the following does NOT limit cell size?

Biology
2 answers:
Minchanka [31]2 years ago
8 0

Answer:

<em>A</em><em>.</em>

<em>The correct answer would be A. ratio of surface area to volume .The cells are mostly spherical in shape.The surface area of the sphere = 4πr²The volume of the sphere = (4πr³)/3Thus, the increase in size would increase the volume (r³) more as compared to the increase in surface area (r²).The ratio of surface area to volume would decrease due to which the diffusion rate would not be efficient enough to distribute the essential elements throughout the volume of the cell.</em>

Explanation:

<em>R</em><em>a</em><em>t</em><em>i</em><em>o</em><em> </em><em>o</em><em>f</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>s</em><em>u</em><em>r</em><em>f</em><em>a</em><em>c</em><em>e</em><em> </em><em>a</em><em>r</em><em>e</em><em>a</em><em> </em><em>t</em><em>o</em><em> </em>volume.

max2010maxim [7]2 years ago
5 0

Answer:

A

Explanation:

The answer options (factors) that are capable of limiting a cell size include the following:

A. ratio of surface area to volume.

B. rate of moving materials across the cell's membrane.

C. efficiency of using the information in a cell's DNA.

A cell can be defined as the fundamental (basic) functional, structural and smallest unit of life, which is mainly found in all living organisms.

Some of the factors that limit the size of a living cell include the following:

The ratio of surface area to volume: this is always required to be small, so as to allow sufficient materials such as food, move through the cell membrane quickly for the cell's survival.

The rate of moving materials across the cell's membrane: the survival of a cell is highly dependent on the rate at which necessary materials move across it's cell membrane.

The efficiency of using the information in a cell's DNA: a small sized cell has higher efficiency in the use of information that are stored in its deoxyribonucleic acid (DNA).

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7 0
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A "mystery molecule" was isolated in a laboratory and scientists found that the molecule readily crossed artificial membranes. W
Arlecino [84]

<u>Answer</u>:       D. calcium chloride

<em>Calcium chloride molecules can be ruled out as the mystery molecule</em>

<u>Explanation:</u>

<em>Artificial membranes are also called as the synthetic membranes.</em> It is created synthetically for the <em>special separation purpose in the laboratory. </em>

It is used to separate large molecules like <em>solid particles and big biological molecules like protein, DNA. </em>

They are produced from organic materials. <em>Calcium chloride contains the chloride ion and calcium ion,</em> as the chloride ion easily passes the artificial membrane so we can term <em>calcium chloride as the mystery membrane that passes the artificial membrane easily.</em>

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