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bixtya [17]
3 years ago
6

Which test tube(s) acts as a negative control against protein

Biology
1 answer:
Nady [450]3 years ago
7 0

Answer:

Water plus Biuret's reagent will act as a negative control in the proteins

Explanation:

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Entre los siguientes métodos de separación de mezclas, Jorge debe seleccionar el adecuado para separar sal de una mezcla de sal
makvit [3.9K]

Teniendo en cuenta las definición de evaporación, la respuesta correcta es la primer opción: para separar la sal, Jorge debe usar la Evaporación, porque con este método se evapora el agua y queda únicamente la sal.

El método de separación utilizado para el agua y la sal es: la evaporación.

La evaporación consiste en pasar el soluto disuelto en un liquido a estado gaseoso y ocurre al aumentar su temperatura de forma natural o artificial,. Dependiendo de que se desea evaporar se utiliza el material correspondiente. La técnica mas común es por contacto y puede acelerarse si utilizamos un material conductor dentro del liquido.

En otras palabras, se conoce que la evaporación es el proceso por el cual las distintas moléculas en estado líquido, como lo es en agua, pasan a un estado gaseoso de manera espontánea, siendo este el principal efecto de la evaporación.

Como se mencionó el método de separación utilizado para el agua y la sal es la evaporación. Durante este proceso, al aplicar calor, el agua se convierte en vapor y se libera al aire. La sal, como tiene otro punto de ebullición, no se evapora.

Entonces, la respuesta correcta es la primer opción: para separar la sal, Jorge debe usar la Evaporación, porque con este método se evapora el agua y queda únicamente la sal.

Aprende más:

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7 0
3 years ago
Which statement accurately describes a relationship between two parts of the universe?
Veseljchak [2.6K]

The statement '(a) there are billions of galaxies in a galaxy cluster' accurately describes a relationship between two parts of the universe.

<h3>What is the solar system?</h3>

The solar system can be defined as a group of billions of galaxies that form a cluster due to gravitational forces that maintain all these celestial bodies linked together. This system contain our Sun.

In conclusion, the statement '(a) there are billions of galaxies in a galaxy cluster' accurately describes a relationship between two parts of the universe.

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When you swing a baseball bat, which systems are involved in that process
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because it is under control of our brain

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Which is an advantage of using embryonic stem cells instead of adult stem cells to help a patient?
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quicker recovery period for limitless injuries and surgeries

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its correct

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How is cell divison controlled?
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Cell controls on division contact with other cells once DNA (cell directions) is copied, cell divides sequence of steps
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