Chemistry, 25.02.2021 04:10 umezinwachukwuebuka1

Which part of the cell is affected by the movement of molecules through diffusion, osmosis, and active transport? A. Cell membrane B. Cytoplasm C. Chromosome D. Cell wall

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Answer from: calah1193

membrana celular

Explanation:

El transporte celular es el intercambio de sustancias a través de la membrana plasmática, que es una membrana semipermeable.1

El transporte es importante para la célula porque le permite expulsar de su interior los desechos del metabolismo, también el movimiento de sustancias que sintetiza como hormonas. Además, es la forma en que adquiere nutrientes mediante procesos de incorporación a la célula de nutrientes disueltos en el agua. Las vías de transporte a través de la membrana celular y los mecanismos básicos para las moléculas de pequeños tamaños son:

Índice

1Transporte pasivo

1.1Ósmosis

1.1.1Ósmosis en una célula animal

1.1.2Ósmosis en una célula vegetal

1.2Difusión facilitada

2Transporte activo

2.1Transporte activo primario: Bomba de sodio y potasio o Bomba Na+/K+

2.2Transporte activo secundario o cotransporte

3Transporte en masa

3.1Endocitosis

3.2Exocitosis

4Véase también

5Referencias

6Enlaces externos

Answer from: Quest

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

Write 15 uses of a mercury barometer along with its characterestics

Answer from: Quest

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