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Please make the answer easy to understand. Thank you.

2006-11-09 18:08:47 · 3 answers · asked by Anonymous in Science & Mathematics Biology

3 answers

The ratio between the surface area and volume of cells and organisms has an enormous impact on their biology. For example, many aquatic microorganisms have increased surface area to increase their drag in the water. This reduces their rate of sink and allows them to remain near the surface with less energy expenditure.

An increased surface area to volume ratio also means increased exposure to the environment. The many tentacles of jellyfish and anemones are the result of increased surface area for the acquisition of food. Greater surface area allows more of the surrounding water to be sifted for food.

Individual organs in animals are often based on the principle of greater surface area. The lung is an organ with numerous internal branchings that increase the surface area through which oxygen is passed into the blood and carbon dioxide is released from the blood. The intestine has a finely wrinkled internal surface, increasing the area through which nutrients are absorbed by the body. This is done to increase the surface area in which diffusion of oxygen and carbon dioxide in the lungs and diffusion of nutrients in villi of the small intestine can occur.

Cells can get around having a low surface area to volume ratio by being long and thin (nerve cells) or convoluted (villi)

Increased surface area can also lead to biological problems. More contact with the environment through the surface of a cell or an organ (relative to its volume) increases loss of water and dissolved substances. High surface area to volume ratios also present problems of temperature control in unfavorable environments.

2006-11-09 21:07:06 · answer #1 · answered by SP!DEY ! 2 · 0 0

interior of which degree of the cellular cycle is DNA copied? B. S 2. Which area of the cellular cycle takes the longest quantity of time? B. hollow a million 3. Which cellular style divides on the utmost fee? A. abdomen lining cellular. Muscle cells and purple blood cells do no longer divide. Bone cells divide fairly slowly. 4. What limits how super a cellular can strengthen? D. The ratio of its floor area to its quantity 5. which sort of cellular undergoes mitosis least frequently? C. A neuron (they do no longer divide in adults) 6. What term describes a shape that protects the ends of a chromosome? A. Telomere 7. What term describes a loose employer of DNA and proteins? B. Chromatin 8. How is DNA prepared interior the cellular? B. Wrapped around histones at time-honored durations 9. In what area of mitosis do chromosomes substitute into linked to spindle fibers? C. Metaphase 10. How does the variety of chromosomes interior the daughter cells study with the variety of chromosomes interior the unique cellular? A. Daughter cells have an identical sort of chromosomes through fact the unique cellular.

2016-12-10 06:19:05 · answer #2 · answered by cheng 4 · 0 0

The volume of a cell determines how much food and energy it needs. The surface area has to be large so that the cell can take in and out enough energy.

Oh ya and no copying my answer!!

2006-11-09 18:13:05 · answer #3 · answered by christi 2 · 0 0

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