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AfilCa [17]
3 years ago
14

Ao estudar para o vestibular, um candidato percebeu que ainda tinha dúvidas em relação aos processos de difusão simples, transpo

rte passivo facilitado e transporte ativo através da membrana plasmática e pediu ajuda para outro vestibulando. Este utilizou a figura abaixo para explicar os processos. Para testar se o colega havia compreendido, indicou os processos como A, B e C e solicitou a ele que os associasse a três exemplos. Os exemplos foram: (1) transporte iônico nas células nervosas; (2) passagem de oxigênio pelas brânquias de um peixe; (3) passagem de glicose para o interior das células do corpo humano.
a.
Indique as associações que o candidato deve ter feito corretamente. Explique em que cada um dos processos difere em relação aos outros.


b.
Em seguida, o candidato perguntou por que a alface que sobrou do almoço, e tinha sido temperada com sal, tinha murchado tão rapidamente. Que explicação correta o colega apresentou?
Biology
1 answer:
jasenka [17]3 years ago
8 0

Answer:

O sal tem uma grande capacidade de absorver água do ambiente.

Explanation:

A passagem de oxigênio pelas guelras de um peixe é um exemplo de difusão porque a difusão ocorre quando a concentração de uma substância é maior em uma região e menor em outra região, de modo que as partículas se movem da região superior para a região inferior. A glicose entra na célula por meio do processo de transporte passivo facilitado porque passa por uma membrana semipermeável por uma proteína específica. O transporte iônico nas células nervosas é o exemplo do transporte ativo porque se move pelo uso da energia contra o gradiente.

O sal tem uma forte capacidade de absorver água do seu entorno, então quando a alface temperada com sal, o sal absorve a água presente no interior da alface, portanto a retirada da água é a retirada da água é a causa do murchamento.

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nignag [31]

Answer:

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Explanation:

6 0
3 years ago
In diffusion and osmosis what happens to the concentration of water inside each cell
avanturin [10]

diffusion is the movement of molecules or stuff through the cell membrane

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6 0
3 years ago
which of the following is not an abiotic factor in the prairie ecosystem a water b sunlight c grass d soil​
Lapatulllka [165]

Answer:

Grass

Explanation:

Biotic means living. There are some obvious abiotic factors here. The only gray area is what "soil" encompasses

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This is because it is a living thing (performs photosynthesis and cellular respiration).

Biotic means living, all of the other choices are not living, and would therefore be abiotic factors

5 0
3 years ago
Exobiologists have discovered under the surface of Mars an alien species of single-celled organisms, which undergo sexual reprod
Llana [10]

Answer:

The dominant phenotypes are Long flagella and one vacuole, and the recessive phenotypes are small flagella and two vacuoles.

Explanation:

As you can see in the attached table

1. For the size of the flagella we gave that:

- 241 organisms have long flagella

- 79 organisms have short flagella,

As there are more organisms with long flagella we can conclude that this is the dominant phenotype while the short flagella is the recessive phenotype.

2. For the number of vacuole we have:

- 247 organisms have one vacuole

- 73 organisms have two vacuole

As there are more organisms with one vacuole we can conclude that this is the dominant phenotype while having two vacuoles a is the recessive phenotype.

Then

Dominant phenotypes = Long flagella and one vacuole

Recessive phenotypes = Short flagella and two vacuoles

5 0
3 years ago
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Korolek [52]

Answer: Option (A) is the correct answer.

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It is the force acted by the wave that pushes or pull the sand in different directions every time the wave comes.

So we can conclude that the statement beaches are always changes due to factors such as waves adding and eroding sand best describes beaches.

6 0
2 years ago
Read 2 more answers
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