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ELEN [110]
3 years ago
9

What is the definition of sodium potassium pump

Biology
2 answers:
Stells [14]3 years ago
6 0

sodium-potassium pump. n. The enzyme-based mechanism that maintains correct cellular concentrations of sodium and potassium ions by removing excess ions from inside a cell and replacing them with ions from outside the cell.

bija089 [108]3 years ago
3 0

A special transport protein is the in the plasma membrane of animal cells that transport sodium out of the cell and potassium into the cell against their concentration gradients.

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State the five requirements for a population to be in Hardy-Weinberg equilibrium.
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When it comes to population evolution and genetics, we cannot fail to cite the Hardy-Weinberg principle which emphasizes that if evolutionary factors such as natural selection, mutation, migration and genetic oscillation do not act on a particular population, the frequencies genotypic proportions will remain constant.

The five requirements for a population to be in Hardy-Weinberg equilibrium are:

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  • Random mating: In order for the Hardy-Weinberg equilibrium to occur, it is necessary that the mating occur at random, with no preference for certain groups within the population. In this case, we say that the population is in panmixia, that is, they all mate at random.
  • No mutations: Mutations alter the total alleles present in a population (gene pool). Therefore, in a Hardy-Weinberg equilibrium population, no mutations should occur.
  • No gene flow: When there is gene flow due to migration or immigration of individuals, some genes may be included or excluded from the population. Thus, in an equilibrium situation, no gene flow occurs.
  • Lack of natural selection: For a population to be in Hardy-Weinberg equilibrium, natural selection must not be acting on it. If natural selection acts, some genotypes will be selected, modifying the allelic frequencies of the population.

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Answer:

Sexual reproduction involves two parents and the joining of male and female gametes during fertilisation. The offspring inherit a mixture of genes from both parents, so are different to each other and their parents. In asexual reproduction there is only one parent. The offspring are clones of the parent and each other.

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A 2-month-old boy is admitted to the emergency room with severe diarrhea. intravenous fluid is prescribed for him. before adding
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If he has voided <span>Explanation: With severe diarrhea, kidney function may fail. It is important to document that kidney function is intact before adding potassium to prevent hyperkalemia.</span>
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