Osmosis In Marine Sea Cells
A marine sea star was mistakenly placed in freshwater. A few hours later, you find the sea star is dead. What is the most likely explanation for its death? Osmosis and its role within molecules. Osmosis is a process during which water moves from a lower concentrated region to a highly concentrated region through a partially permeable membrane. When there is a difference in osmolarity between two solutions, water will flow from hypoosomic solution to hypersoomic solution by osmosis. It is a passive process where energy is not required. If the cytoplasm is in a hypotonic solution, water molecules will enter the cell. The high uptake of water by the cell will cause it to swell and eventually burst. However, if the cell is found in a hypertonic …show more content…
Sea star can adjust its osmotic pressure in its environment as they both have the same concentration of salt. The concentration of freshwater is higher than in the sea star. Freshwater is hypotonic to the sea star cells where dissolved salts are present. During osmosis, water molecules will enter the cells of the sea star thus increasing the osmotic pressure. This will lead to cell function disruption where essential organs are dehydrated and are unable to metabolize. Therefore, the sea star is considered as a poor osmoregulator as it cannot adapt to different level of salinity. Osmosis is important to regulate water equilibrium allowing nutrients to be absorbed and wastes to be removed from …show more content…
Osmoregulators are able to control the movement of solutes whether it is internal or external. Osmoconformers do not have this ability and are isosmotic with their surroundings. Marine stars are stenohaline, animals who cannot withstand changes in the external osmolarity. So if a sea star has a sudden influx of water, the cells within will shrink or shrivel causing their organelles and cell membranes to be damaged and eventually die. Osmoconformers are not able to regulate solutes in their body in different concentration because of the permeability of their bodies and the absence of organs such as kidneys that allow them to produce urine in multiple solute
Sci201 Unit 1
391 Words | 2 PagesWith oxygen depletion and reduced transparency, many Haplochromis fish species have become
Hastings Point Lab Report
1610 Words | 7 PagesThis adaptation is to retain moisture using a special structure – the operculum – which can be sealed when the snail is not eating to retain moisture within the shell. This is used especially between the high tides, as water only reaches this high zone at these times. Another factor associated with the supralittoral zone is harsh wind conditions, which was observed at Hastings Point where the temperature indicated a 12% increase in average temperature between the littoral and supralittoral zones. The black nerites adapted behaviourally to survive these conditions. To do this,
Sea Stars Research Paper
1087 Words | 5 PagesTheir suctions help them survive extreme changes in environment like crashing waves or tidal waves. Their digestive system allows them to eat many different types of prey or smaller animals. The ambulacral grooves help to open shells enabling sea stars to digest
The Importance Of Eukaryotic Plasma Membrane
1280 Words | 6 PagesThis can occur through vesicles that are formed by throttling the plasma membrane and then penetrating into the cell (endocytosis), or they merge with it to free their contents (exocytosis) outside. There are three types of endocytosis known: • phagocytosis - very common among unicellular protists, who use it to feed themselves; in the human body, some types of white blood cells incorporate cells and foreign substances into phagocytosis. • pinocytosis - a constant activity of pinocytosis is carried out by the endothelium, the tissue that covers the blood capillaries and which allows the cells of the surrounding tissues to withdraw fluids from the blood. • Receptor-mediated endocytosis - a quick and efficient method for withdrawing substances that can be found in the environment even at low concentrations.
The Ordovician Period
1166 Words | 5 PagesAn example of a straight-shelled cephalopod is the orthoceras; this creature lived in the largest open end of its shell. The orthoceras could rise and fall in the ocean water like a submarine. The tube in the center of the animal was called the siphuncle. When the siphuncle was filled with air, its body floated upward. A burst of air out the back of the siphuncle would push the animal forward.”
Eutrophication Of Muskrats In Lakes
61 Words | 1 PagesMatthew Blanch Mr.DeJong Science 11,7,2017 Eutrophication The eutrophication of these muskrats in lakes is when fertilizer goes into the lakes and because light reflects off the lake no sunlight hits the seaweed and the seaweed dies then the nitrogen from the seaweed goes up onto the surface of the water and turns it into a messy green slob. Killing the muskrats.
Essay On The Effect Of Temperature On Osmosis
1159 Words | 5 PagesExploration Title: Effect of Temperature on rate of Osmosis Submitted By: Abdulkarim Kamal Date Submitted: October 19th 2015 Subject: Biology HL Teacher: Mr. Nick Aim: This is an investigation to determine the relation between temperature of a solution (sucrose) and the rate of osmosis Scientific Context: Osmosis is defined a passive transport process in which a fluid diffuses across a semi-permeable membrane, from an area of high solute concentration to an area of low solute concentration and vice-versa. There are various factors that could potentially influence the rate of osmosis; these factors include volume, concentration, and temperature. If all external factors that may interfere with rate of osmosis are controlled, the results will show equal amounts of fluid on both sides of the barrier (membrane); this is known as an “isotonic” state.
Dive Synthesis
783 Words | 4 PagesThese were all verified in this experiment and thus the reflex occurred. This reflex is important in tetrapods, especially marine mammals, so that oxygen can be used in the muscles for longer periods of time as the organism is underwater. If oxygen is kept in the muscle tissue, the organism can cope with vasoconstriction as the dive reflex occurs. As stated above, this reflex occurs when two autonomic reflex pathways are
R Glaucus Aquatic Research Paper
488 Words | 2 PagesNotes: M They are Pelagic, this means that they inhabit the upper layers of the sea. It has an air bubble inside of its stomach so as a result, they float on the surface of the ocean. They float upside down by using the surface tension of the water to stay up.
Diffusion And Osmosis Lab Report
819 Words | 4 PagesDiffusion and Osmosis Lab Report By: Jettica Williams BIOL 1107 Lab September 21, 2016 Prepared for Mrs. Fulford Lab Course Page Break The cell membrane act as a roadblock for cells. The cell membrane has a very hectic job. It restricts the access to what comes in and what goes out. The bond the membrane shares with others is the idea of accountability.
Marine Biologist Research Paper
736 Words | 3 PagesLizeth Felix-Guzman AVID August 9, 2014 Marine Biologist A marine biologist refers to anyone who studies or works with animals or plants that live in salt water from the tiniest microbes and plankton to the largest whales, and every species in between. Marine biologist also works towards discovering all the unknown plants and animals that live in the depths of the sea. Marine biologist study life in the oceans, they study the process of how marine organisms develop and relate to each other and how they adapt to their environment and interact with it (Marine).Studying this is essential in order for them to be preserved. Usually marine biologists have more specific job titles such as an ichthyologist, cetologist, marine mammal trainer,
Hypotonic Solution To Replace The Cells By Osmosis
181 Words | 1 PagesHypotonic is a solution with a lower salt concentration than what the body’s normal cells contain this then allows water to flow into the cells by osmosis. One reason to use a hypotonic solution on a patient is to replace cellular fluid, which is to hydrate the patient that may be dehydrated (Farrell & Dempsey, 2014, p 147). Hypertonic can be a saline solution which has a higher salt concentration then the normal body cells so this then encourages water out of the cell by osmosis. This solution would be used on patients that are suffering from oedema (Farrell & Dempsey, 2014, p 147).
Habitable Zone Research Paper
938 Words | 4 PagesThe planet will be in the best position from the star for the planet to make the water to remains consistent in liquid form. F, G, K, or M star are the most start the being searched for life-bearing planet. O, B, and mostly A star’s plant does not able to develop a complex life style due to the stars short lifetime. In the image below, the blue region is the location of the
Eutrophication In Rivers
1558 Words | 7 PagesNow that these plants have grown so large, they block the sunlight. The underwater plants are deprived of sunlight so they start to die. Bacteria starts to decompose these plants. The bacteria consumes all of the residual oxygen. Once these underwater plants have died, they leave the fish and other aquatic life without shelter, food and oxygen.
Bioluminescence In Biology
1039 Words | 5 PagesAs humans, our world would be thrown into chaos if suddenly there were no light. However, deep at the bottom of the world’s oceans many organisms are surviving in the complete absence of light. From 200 metres below the surface of the sea, photosynthesis can no longer occur, as not enough sunlight can penetrate the water. From 1000 metres below the surface exists the “twilight zone” where the only wavelength of light that can penetrate through the vast amount of water is blue light (Yancy, 2011). This absence of light leads to multiple challenges for organisms living in the deep sea, such as obtaining food, escaping prey and finding mates.
More about Osmosis In Marine Sea Cells
Sci201 Unit 1
391 Words | 2 PagesHastings Point Lab Report
1610 Words | 7 PagesSea Stars Research Paper
1087 Words | 5 PagesThe Importance Of Eukaryotic Plasma Membrane
1280 Words | 6 PagesThe Ordovician Period
1166 Words | 5 PagesEutrophication Of Muskrats In Lakes
61 Words | 1 PagesEssay On The Effect Of Temperature On Osmosis
1159 Words | 5 PagesDive Synthesis
783 Words | 4 PagesR Glaucus Aquatic Research Paper
488 Words | 2 PagesDiffusion And Osmosis Lab Report
819 Words | 4 PagesMarine Biologist Research Paper
736 Words | 3 PagesHypotonic Solution To Replace The Cells By Osmosis
181 Words | 1 PagesHabitable Zone Research Paper
938 Words | 4 PagesEutrophication In Rivers
1558 Words | 7 PagesBioluminescence In Biology
1039 Words | 5 Pages