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3 years ago

When a plant is placed in pure distilled water its cell will

Biology

2 answers:

cestrela7 [59]3 years ago

5 0

Answer:

The correct answer will be-cell become swollen and turgid

Explanation:

The distilled water is the water produced by the distillation process which removes the impurities and makes it a less solute containing water. The distilled water is thus hypotonic in nature with a low amount of solute and a high amount of water.

When a plant cell is placed in the hypotonic solution since the interior of the cell contains a high amount of solute then distilled water results in the inward movement of water and cause the swelling of the plant cell and cell as result becomes turgid.

Thus, the cell becomes swollen and turgid is the correct answer.

Karo-lina-s [1.5K]3 years ago

4 0

"When the plant cell is placed in a hypotonic solution , it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell is said to have become "turgid" i.e. swollen and hard. The pressure inside the cell rises until this internal pressure is equal to the pressure outside. "

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What climate region in North America is influenced by the prevailing westerlies?

Hitman42 [59]

Answer:

Marine West Coast

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2 years ago

¿Cual de los siguientes solutos que pueden estar presentes en el liquido extracelular es transportado de acuerdo al modelo de me

kolezko [41]

Complete question:

¿Cual de los siguientes solutos que pueden estar presentes en el liquido extracelular es transportado de acuerdo al modelo de mecanismo propuesto en la ilustracion?

A) Etanol.

B) Calcio.

C) Glucosa.

D) Estrógeno.

E) Oxígeno.

Nota: La ilustración se encuentra como un archivo adjunto.

Answer:

Ión Calcio y Estrógeno son transportados por proteinas canal a traves de la membrana.

Explanation:

Durante el paso de sustancias al interior o exterior de la celula ocurren dos tipos de transportes. Transporte activo y pasivo. El primero requiere de energia ya que se produce en contra de un gradiente electroquímico. El segundo, por otra parte, no requiere de energía ya que sucede a favor del gradiente electroquimico.

El transporte activo es mediado por proteinas transportadoras que actúan como bombas transportadoras.

El transporte pasivo puede ocurrir por

difusión simple a traves de la bicapa lipídica (sin ningunaproteina que medie su paso),
difusión facilitada a traves de proteinas canales (estas proteinas tienen forma de poro hidrofílico y permiten el paso de sustancias de un lado al otro de la membrana celular sin sufrir modificaciones. Permiten el pasaje de iones actuando como canales ionicos y de hormonas o neurotransmisores),
o difusión facilitada a través de proteinas transportadoras o carriers (estas proteinas son altamente selectivas y sufren un cambio temporal en su conformación al hacer pasar una sustancia de un lado al otro de la membrana plasmatica).

La ilustración adjuntada muestra un ejemplo de proteina de canal facilitando el transporte de distintas sustancias.

A) Etanol. Transporte pasivo. Difusión simple a traves de la bicapa lipídica.

B) Ion Calcio, Ca²⁺. Transporte pasivo. Difusión facilitada a traves de proteina canal.

C) Glucosa. Transporte pasivo. Difusión facilitada a traves de proteina transportadora o carrier.

D) Estrógeno. Transporte pasivo. Difusión facilitada a traves de proteina canal.

E) Oxígeno. Transporte pasivo. Difusión simple a traves de la bicapa lipídica.

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2 years ago

Explain how the elbow joint of a human and a cow is similar, but not identical in structure

son4ous [18]

Both are warm blooded creatures. So you have humerus above and ulna beneath, which partake in the elbow joint. Both the dairy animals and human have pivot sort of joint with two insurance tendons to bolster the joint. The main distinction is that you have 180-degree pivot of humerus in human and not so on account of a dairy animals.

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3 years ago

Write a 600 word report discussing nuclear reactors. The report should include a description of the way a reactor works and the

barxatty [35]

Answer:

Explanation:

A nuclear reactor is an installation capable of initiating, maintaining and controlling the chain fission reactions that take place in the reactor core, consisting of the fuel, coolant, control elements, structural materials and moderator in the case of nuclear thermal reactors.

The core is the part of the reactor where the nuclear chain reaction is produced and maintained.

Components of the core:

The fuel of a nuclear reactor is fissionable material.

Control rod beams provide a rapid means of controlling the nuclear reaction, allowing rapid changes in reactor power and eventual shutdown in case of emergency.

The neutrons produced in fission have a high energy in the form of velocity. Their speed should be reduced to increase the probability of other atoms fissioning and not to stop the chain reaction. This is achieved by elastic collisions of the neutrons with the nuclei of the moderator.

Most of the energy released by fission is in the form of heat. To be able to use this, a refrigerant must pass through the interior of the reactor that absorbs and transports this heat.

In a nuclear chain reaction, a certain number of neutrons tend to escape from the region where it is produced. This neutron leakage can be minimized by the existence of a reflecting medium, thus increasing the efficiency of the reactor.

When the reactor is in operation, a large amount of radiation is generated. Protection is needed to isolate the installation workers from radiation caused by fission products. Therefore, a biological shield is placed around the reactor to intercept these emissions.

A breeder reactor is a nuclear reactor that generates more fissile material in the fuel than it consumes. Considered highly attractive because of their superior fuel economy: a normal reactor consumes less than 1% of the natural uranium that starts the fuel cycle, while a 'breeder' can burn it almost completely. It also generates less waste for the same amounts of energy. Breeders can be designed to use thorium, which is more abundant than uranium. Currently, there is renewed interest in both breeder designs due to the increased price of natural uranium.

All commercial reactors breed fuel, but they have low (though still significant) breeding ratios when compared to machines that are traditionally considered breeders. In recent years, the commercial energy industry has been emphasizing high burn fuels, which last longer in the core of the reactor.

Reproduction of fissile fuel is a common feature in reactors, but commercial reactors are not optimized for this feature which is referred to as improved burning. Up to one-third of all electricity produced in the current U.S. reactor inventory comes from reproducible fuel, and the industry is working hard to increase that percentage over time.

The advantages are:

Generates a large amount of electricity

No production of greenhouse gases

Dependence on oil is reduced

Less damage to the environment

A major disadvantage is the difficult management of the nuclear waste generated.

Nuclear power plants have a limited lifetime. The investment for the construction of a nuclear plant is very high.

4 0

3 years ago

Okazaki fragments are formed on which strand?

Alecsey [184]

Answer:

The leading strand is continuously synthesized and is elongated during this process to expose the template that is used for the lagging strand (Okazaki fragments). During the process of DNA replication, DNA and RNA primers are removed from the lagging strand of DNA to allow Okazaki fragments to bind to.

Explanation:

Hope it helps

6 0

3 years ago