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Step2247 [10]
3 years ago
6

If a 30% sucrose solution is separated from a 40% sucrose solution by a membrane impermeable to sucrose, in which direction will

net movement of water occur?
Biology
1 answer:
Tom [10]3 years ago
7 0

Answer: from 30% sucrose solution to the 40% sucrose solution

Explanation:

From the definition of osmosis is the movement of water molecules through a selectively permeable membrane from a region of lower solute into a region of higher solute concentration, until the solute concentrations on the two sides is equal.

Therefore the net movement of water molecules will move from 30% sucrose solution to the 40% sucrose solution until the concentration of sucrose on both sides of the impermeable membrane is equal 35% each.

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How do the leaves help trees survive in their respective biomes?
inna [77]

Answer: Leaves have different shape and different function based on the biome in which they live.

Explanation: Different biome have different trees and the structure of leaves are different.

The tundra biome have leaves designed in such as way that it does not allows the snow to stay on the leaves for a longer duration of time.

The desert biome have leaves designed in such a way that it does not allows water loss.

The rainforest biome has leaves designed in such a way that it does not retains water on the leaves for a longer time.

 

7 0
3 years ago
A protein containing several proline residues is:
vovangra [49]

Answer:

The correct answer is b. likely to be found in beta turns.

Explanation:

Proline is the amino acid which is unique from other amino acids as the side chain of proline is connected which gives it a cyclic structure. Beta turns are the secondary structure found in proteins that helps in the changing of direction of polypeptide chain in the protein.

The amino -acid proline is commonly found in beta turns because the unique cyclic structure of proline suits the beta-turn organization. Glycine is another amino acid that is abundant in beta turn because of its small size.

Therefore the correct answer is b. likely to be found in beta turns.

6 0
3 years ago
Explain the principles of classical conditioning by describing Pavlov's classic experiment with dogs.
saveliy_v [14]

Answer:

Is the correlation among stimulus (one natural and another from the environment).

Explanation:

Ivan Pavlov, worked with dogs. He was testing a learning path in the area of conduct ism.

1.- First he tried a bell (this is the environment stimulus) to feed dogs (salivation is the natural stimulus).

2.- By passing the time, the reinforcement of the environmental stimulus make that the dogs start salivation just by the sound of the bell, does not matter if they have food or not.

3.- In this way he probed that learning  is based in following and repeating some conducts.

5 0
3 years ago
About 74% of earth's surface is covered by
sertanlavr [38]
Water! It is the source of all life.
3 0
3 years ago
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What are some features that were or are associated with the emptying of lakes formed during glacial times?
xxMikexx [17]
Some of the features that are associated with the emptying of lakes formed during glacial time include the following:
The Bonneville salt flats of Utah, the channelled scabland, the enormous potholes carved into bedrocks and enourmous ripples hundred of feet high. All these are product of flowing ice and melted water. They are usually found in glaciated areas.<span />
3 0
4 years ago
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