Microscopia. Flashcards

1
Q

cuanto mide una membrana biologica de espesor?

A

10 nm.

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2
Q

cuanto mide un virus?

A

20 - 300 nm.

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3
Q

cuato mide una celula de diametro?

A

10,000 nm de diametro.

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4
Q

cuales son los tipos de microscopio? en que difiere su nombre?

A

optico, de luz o fotonco y electronico; difiere enlo que utilizan, luz o electrones.

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5
Q

Componentes opticos de un microscopio?

A

oculares, objetivos, condensador, fuente luminosa y filtros.

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6
Q

Cuales son los componentes del sistema mecanico del microscopio?

A

cañon, brazo, base, revolver, platina, pinzas de platina, tornillo macro y micrometrico.

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7
Q

quien regula la fuente de luzdel microscopio?

A

diafragma.

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8
Q

que vuelve al microscopio “compuesto” ? que funcion tiene?

A

condensador, enfoca el haz de luz.

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9
Q

que es el poder de resolucion?

A

distancia minima a la cual se pueden diferenciar dos objetos.

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10
Q

cual es el poder de resolucion del ojo humano, M. luz y M. e?

A

ojo: 0.2 mm a 25 cm, M. l. 0.2 um, M. e. 0.2 nm.

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11
Q

mencione los microscopios de la microscopia electronnica:

A

MET, MEB y MBT.

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12
Q

cual es el espesor promedio de un corte?

A

5 um.

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13
Q

cual es el aumento de seco debil y fuerte?

A

10x y 40x respectivamente.

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