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3 years ago

How is energy expended in active transport

Biology

1 answer:

blondinia [14]3 years ago

3 0

Hello!

We know that the movement of molecules from an area of low concentration to high concentration. This movement is against the concentration gradient and thus requires the use of adenosine triphosphate (ATP) to successfully move. This process is the opposite of diffusion, which requires the use of no energy because it moves materials DOWN the concentration gradient.

I hope I helped! Feel free to leave a comment down below if you need any more assistance, even if it is not with this question. :)

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Do we use all brains all the time? If so why?

hammer [34]

Answer:

Yes because we use our brain to write, read, draw, drive a car, or pretty much anything we do. Even sleeping our brain is working. But at a slower pace. The brain never stops working.

Explanation:

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3 years ago

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If the lacI gene in the genetically engineered fluorescent strain were nonmutant but the lacO sequence on the chromosome mutated

zaharov [31]

Answer:

if the lacI gene, in the genetically engineered fluorescent strain were non-mutant but the lacO sequence on the chromosome is mutated to lacOc then,

in the presence of the inducer, the cells fluorescence will show

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in the absence of inducer, the cells fluorescence will show,

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Explanation:

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3 years ago

Which physical evidence supports the evolution of earth due chemical weathering?

puteri [66]

Answer:

Concave shape of the wave rock is a physical evidence that supports the evolution of earth due chemical weathering

Explanation:

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3 years ago

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A geneticist is studying two genes. each gene can be either dominant or recessive. a sample of 100 individuals is categorized as

Aleksandr-060686 [28]

Attached is a table. I found the exercise on another page on the internet and the sample of 100 individuals was categorised on a table - easier to understand than as it is presented here.
"(a) what is the probability that a random sampled individual, gene 1 is dominant" - We should first add up all of the individuals that are dominant for gene 1 (56+24) and then divide it by the total number of individuals (100).
 $\frac{56+24}{100}$ =0.8
The probability is of 8 in 10 individuals.
"(b) what is the probability that a random sampled individual, gene 2 is dominant" - Follow the same logic as in the previous question.
 $\frac{56+14}{100}$ =0.7
The probability is of 7 in 10 individuals.
"(c) given that gene 1 is dominant, what is the probability that gene 2 is dominant" - Because we are considering those that are dominant for gene 1, our total number of individuals is the total individuals that are dominant for gene 1 and not the whole 100. Once we have this restriction, and we want to know the probability that gene 2 is dominant in these individuals, we should also only consider those that are dominant for gene 2.
 $\frac{56}{56+24}$ =0.7
The probability that gene 2 is dominant, given that that gene 1 is dominant, is of 7 in 10 individuals.

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3 years ago

Which type of transposition is believed to be responsible for creating processed pseudogenes in vertebrate organisms?a. DNA tran

rusak2 [61]

Answer:

D. LINE-promoted transposition.

Explanation:

Pseudogenes are traditionally defined as sequences that closely resemble known genes but do not produce a functional protein, which in many cases were actually genes, or copies of genes, degenerated by mutational processes that alter the reading frame of coding regions (ie that encode the amino acid sequence) or that interfered with the promoter elements that controlled their expression.

Pseudogenes originate by the same mechanisms as protein coding genes, followed by the subsequent accumulation of disabling mutations (e.g., insertions, nucleotide deletions, and / or substitutions) that disrupt the reading sequence in the coding regions, or lead to the insertion of a premature termination codon or the aforementioned reading frame change. However, it is believed that the transposition promoted by LINE is the main transposition responsible for the appearance of pseudogenes.

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3 years ago

How is energy expended in active transport​

How is energy expended in active transport