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Osmosis is the movement of a solvent, such as water, across a semi permeable membrane. Such membranes have small holes that allow some materials to flow from one side to the other. Tonicity is the ability of a solution to cause a cell to gain or lose water. There are three types of tonicity, Isotonic, Hypertonic, and Hypotonic Solutions. Isotonic Solutions are where the solute concentration is the same as that inside the cell. There is no net movement of water across the plasma membrane Hypertonic Solutions are where the solute concentration is greater than that in the cell and the cell loses water. Hypotonic Solutions are solute concentration is less than that inside the cell and the cell gains water. The title correlates because these plants where deep in the sea. They were located with hardly any sunlight so photosynthesis was not possible. With that out of question they had to feed through osmosis, absorbing nutries through their semi permeable membrane or "eating".
A) Osmosis is the diffusion of high concentrstion of water to low concentration of water. There are three types of tonicity: hypotonic, isotonic, and hypertonic. A hypotonic solution is exposure to an excess amount of water causing cells to enlarge and burst. An isotonic soulution is neutral casuing the cell to neither lose or gain, allowing it to remain stable. A hypertonic soulution causes cells to lose water causing cell shrinkage.
B) Scientists from Virginia Tech have found that the oldest complex life forms from about 540 million years ago, were most likely fed by osmosis. Laflamme stated, " The repeated branching system in rangeomorphs was essential to allow for a high surface-area to volume ratio necessary for proper osmosis-based feeding." "Today, only microscopic bacteria find it efficient to us only osmosis to feed, although some animals, such as sponges and corals, use osmosis as a supplementary food source. But in the Ediacaran period, 635 to 541 million years ago, with nutrient-rich oceans, "a diffusion-based feeding strategy was more feasible," Laflamme said." The title correlates bacause the evidence found by researchers indicates that these plants were eating by osmosis.
Osmosis is the diffusion of water across a seletively permeable membrane. It diffuses across the membrane, going from a high concentration to a low concentration. Toncity is the ability of a solution to cause cells to either lose or gain water. the 3 types of toncity are Isotonic: a neutral solution, the cell neither loses nor gains water, Hypertonic: the cell loses water, and Hypotnic: the cell gains water. In the article, it mentions that an underwater "ferns" were able to survive at the bottom of the ocean for millions of years, with little to no sunlight. They believe that they're able to survive because they obsorbed the nurtients from the ones that have died off. They related this to how some cells consume cells that have died off.
osmosis is the movement of a solvent such as water, across a semi-premeable membrane. Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. there are three types of tonicity. the first type of tonicity is Isotonic which means there is no movement of water in or out of the cell, because it is in equilibrium. The second type of tonicity is Hypertonic whic means there is a higher concetration of solute outside of the cell and causes a flow of water from inside to outside; the cell will shrink.The third type of tonicity is Hypotonic which is the higher concentration of solute within the cell and so water moves from out to in, causing it to swell up.(tutorvista.com) "the fern-shaped rangeomorphs and the air mattress-shaped erniettomorphs. These macroscopic organisms, typically several inches in size, absorbed nutrients through their outer membrane, much like modern microscopic bacteria"
Osmosis is the movement of a solvent such as water, across a semi-permeable membrane. Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. There are three types of Tonicity, Isotonic, Hypertonic, and Hypotonic. Isotonic is when the same amount of water is coming in and out of the cell. Its a equal amount. Hypertonic is when the cell looses most of its water. Causing the cell to shrivel up. Hypotonic is basically the opposite of that its most of the water is coming in the cell. Causing the cell to swell or explode from too much water. The title correlates because these fern plants where deep in the sea. They were located with hardly any sunlight so photosynthesis was not possible. With that out of the question they had to feed through osmosis, absorbing nutries through their semi permeable membrane or "eating".
Logan Campbell-Smith
ReplyDelete1A
Osmosis is the movement of a solvent, such as water, across a semi permeable membrane. Such membranes have small holes that allow some materials to flow from one side to the other.
Tonicity is the ability of a solution to cause a cell to gain or lose water. There are three types of tonicity, Isotonic, Hypertonic, and Hypotonic Solutions.
Isotonic Solutions are where the solute concentration is the same as that inside the cell. There is no net movement of water across the plasma membrane
Hypertonic Solutions are where the solute concentration is greater than that in the cell and the cell loses water.
Hypotonic Solutions are solute concentration is less than that inside the cell and the cell gains water.
The title correlates because these plants where deep in the sea. They were located with hardly any sunlight so photosynthesis was not possible. With that out of question they had to feed through osmosis, absorbing nutries through their semi permeable membrane or "eating".
A) Osmosis is the diffusion of high concentrstion of water to low concentration of water. There are three types of tonicity: hypotonic, isotonic, and hypertonic. A hypotonic solution is exposure to an excess amount of water causing cells to enlarge and burst. An isotonic soulution is neutral casuing the cell to neither lose or gain, allowing it to remain stable. A hypertonic soulution causes cells to lose water causing cell shrinkage.
ReplyDeleteB) Scientists from Virginia Tech have found that the oldest complex life forms from about 540 million years ago, were most likely fed by osmosis. Laflamme stated, " The repeated branching system in rangeomorphs was essential to allow for a high surface-area to volume ratio necessary for proper osmosis-based feeding." "Today, only microscopic bacteria find it efficient to us only osmosis to feed, although some animals, such as sponges and corals, use osmosis as a supplementary food source. But in the Ediacaran period, 635 to 541 million years ago, with nutrient-rich oceans, "a diffusion-based feeding strategy was more feasible," Laflamme said." The title correlates bacause the evidence found by researchers indicates that these plants were eating by osmosis.
Osmosis is the diffusion of water across a seletively permeable membrane. It diffuses across the membrane, going from a high concentration to a low concentration. Toncity is the ability of a solution to cause cells to either lose or gain water. the 3 types of toncity are Isotonic: a neutral solution, the cell neither loses nor gains water, Hypertonic: the cell loses water, and Hypotnic: the cell gains water.
ReplyDeleteIn the article, it mentions that an underwater "ferns" were able to survive at the bottom of the ocean for millions of years, with little to no sunlight. They believe that they're able to survive because they obsorbed the nurtients from the ones that have died off. They related this to how some cells consume cells that have died off.
osmosis is the movement of a solvent such as water, across a semi-premeable membrane. Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. there are three types of tonicity. the first type of tonicity is Isotonic which means there is no movement of water in or out of the cell, because it is in equilibrium. The second type of tonicity is
ReplyDeleteHypertonic whic means there is a higher concetration of solute outside of the cell and causes a flow of water from inside to outside; the cell will shrink.The third type of tonicity is Hypotonic which is the higher concentration of solute within the cell and so water moves from out to in, causing it to swell up.(tutorvista.com)
"the fern-shaped rangeomorphs and the air mattress-shaped erniettomorphs. These macroscopic organisms, typically several inches in size, absorbed nutrients through their outer membrane, much like modern microscopic bacteria"
Osmosis is the movement of a solvent such as water, across a semi-permeable membrane. Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. There are three types of Tonicity, Isotonic, Hypertonic, and Hypotonic.
ReplyDeleteIsotonic is when the same amount of water is coming in and out of the cell. Its a equal amount. Hypertonic is when the cell looses most of its water. Causing the cell to shrivel up. Hypotonic is basically the opposite of that its most of the water is coming in the cell. Causing the cell to swell or explode from too much water. The title correlates because these fern plants where deep in the sea. They were located with hardly any sunlight so photosynthesis was not possible. With that out of the question they had to feed through osmosis, absorbing nutries through their semi permeable membrane or "eating".
-Timishia Harvey