1. During diffusion, when the concentration of molecules on both sides of the membrane is the same, the molecules will C) continue to move across the membrane in both directions.
2. An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes A) water to move into the cell.
3. A) During active transport, a material may be moved from an area of low concentration to an area of high concentration.
Further Explanation:
1. Diffusion is the movement of solutes from an area of high concentration to an area of low concentration until equilibrium is reached. At equilibrium, when there is no concentration gradient (i.e. the concentrations on both sides are equal), the molecules move in both directions, thereby ensuring the the concentration in both sides are maintained.
A) move across the membrane to the outside of the cell is FALSE because the concentration of molecules inside and outside the cell is the same, therefore, equilibrium will be disturbed if molecules move outward.
B) stop moving across the membrane is FALSE because equilibrium is not a static state but a dynamic state. Solutes are constantly moving in both directions to maintain the balance in concentration.
D) move across membrane to the inside of the cell is FALSE because there is no concentration gradient, therefore, movement will be on both directions to maintain equilibrium.
2. Osmosis is the movement of water from an area of high water potential (high solvent concentration, low solute concentration) to an area of low water potential (low solvent concentration, high solute concentration). Since fresh water has lower solute concentration than the inside of the cell, the cell will have low water potential while outside it has high water potential.
B) water to move out of the cell is FALSE because the direction of movement of water has to be from high water potential to low water potential. High water potential is outside the cell so water moves from the outside to inside of the cell causing it to burst.
C) solutes move into the cell is FALSE because osmosis involves the movement of water not solutes.
D) solutes move out of the cell is FALSE because osmosis involves the movement of water due to a difference in water potential.
3. Active transport is the movement of solutes from an area of low concentration to high concentration. Since this is going against the concentration gradient, energy is needed to cause the movement.
Passive transport is the movement of solute across a concentration gradient. No energy is needed for this as it is a spontaneous occurrence.
B) During passive transport, energy is used to move material against a concentration gradient is FALSE because energy is not required during passive transport.
C) During active transport, water is pumped across a membrane to equalize the concentration of salts on both sides is FALSE because solutes are moved across a membrane not water during active transport. Movement of water is called osmosis.
D) During passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize is FALSE. Osmosis is a specific type of passive transport of water, not of salts.
Learn More
Keywords: Osmosis, Active Transport, Diffusion
1. During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will continue to move across the membrane in both directions.
2. An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes water to move into the cell.
3. The statement “During active transport, a material may be moved from an area of low concentration to an area of high concentration” is true.
Further Explanation:
Diffusion is the process of movement of molecules from a high concentration to low concentration under influence of concentration gradient. The process is not energy driven as it does not directly involve the involvement of molecules such as ATP and GTP.
In biological systems the process of diffusion is a very dynamic process it happens at every instance of time. Every cell for it to function properly has to undergo diffusion that involves movement of chemical components across the cell wall. If there is a situation in which the concentration on both the side of the membrane is identical the molecules will keep on moving across the membrane without changing the concentration.
Osmosis is the process of movement of molecules across the semi-permeable membrane from area of high concentration to area of low concentration. An animal cell has high concentration of salts and other components while fresh water is free from it. When such a cell is introduced in fresh water, the water gushes into the cell. This gushing in excess results in the bursting of the cell.
A cell can undergo two types of transport one being active and other passive. Active transport is the phenomenon wherein a molecule is transported against the concentration gradient. This transport requires energy that is ATP. While on the other hand passive transport is a phenomenon which involves movement of solute with the concentration gradient thus they do not require energy molecules.
Learn more:
1. Learn more about long term energy storage brainly.com/question/523624
2. Learn more about the reason of phospholipids to form lipid bilayer in water brainly.com/question/751529
3. Learn more about effects of alcohol on brain brainly.com/question/2034996
Answer Details:
Grade: High School
Subject: Biology
Chapter: Cells and osmosis
Keywords:
Diffusion, osmosis, active transport, passive transport, concentration gradient, ATP, GTP, semi-permeable membrane, high concentration, low concentration, animal cell, osmotic pressure.
Answer:
Russian hamsters, (and hamsters in general) are very complicated animals despite what other people say. A lot of people think that hamsters are good beginner pets for kids, but they really are not. Hamsters require a lot of square footage, specifically 300 ft.² for your type of hamster. And they require lots of enrichment. If you have not done research, I would recommend researching on how hamsters can thrive before you get one. I would also recommend the creator Victoria Reachel on YT, because she is a hamster expert, and her videos have a lot of useful information in them. Such as, what do you feed a hamster, how to give a hamster enrichment, and which things are bad for hamsters. I wish you the best of luck on your hamster journey!
Explanation:
Russian dwarf hamsters should be kept in an environment with ample space, proper diet, and regular interaction. Their cage requires adequate bedding and toys. Temperature should be moderate and constant.
Russian dwarf hamsters should be kept in an adequate-sized cage, which offers space for them to move and play. The cage should include hamster-safe toys and have plenty of bedding for burrowing. It's essential to maintain a moderate temperature, as extreme heat or cold can be harmful.
Their diet should consist of fruits, vegetables, and commercial hamster food. Fresh water should always be available. It's also important to handle them carefully and regularly to keep them sociable and comfortable with human contact.
#SPJ11
B)Recognizes and respects her grandmothers social position
C) understands why her mother and her grandmother frequently argue
D) wishes she was receiving the gifts her grandmother was giving to others
The conclusion should be Option B)Recognizes and respects her grandmothers social position
The narrator should recognize and respects her grandmother's social position. Her grandmother enjoys the esteem so that she receives at the time when she goes to the baths. This is due to this because of her grandmother felt that she has no power at home.
learn more about the social here: brainly.com/question/12881643?referrer=searchResults
9/27/18
Desertification is when an environment becomes drier, like a desert.The Dry climate causes plant life to decrease, which causes pray life to decrease, which causes predators life to decrease. This significant change is vary harmful to the environment. This can happen to any environment. Deserts expand when this happens to deserts.
Answer:
Very
Explanation:
If we did not have liquid water we would die lol
Answer:
true
Explanation: