Tag: spectrophotometer, colorimeter and biosensor

Questions Related to spectrophotometer, colorimeter and biosensor

Pure fractions of cellular components are isolated by

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. Chromatography.

  2. Differential centrifugation.

  3. Scanning electron microscopy.

  4. X-ray diffraction.

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Correct Option: B

Buoyant density centrifugation is carried out at

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. 50,000g for 1-3 hours

  2. 50,000g for 20 hours

  3. 1,00,000g for 1-3 hours

  4. 1,00,000g for 20 hours

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Correct Option: D

The common method to determine weight of proteins is

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. X-ray diffraction.

  2. Ultracentrifugation.

  3. Classical chemistry.

  4. Both A and C.

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Correct Option: B

At what speed, the mitochondria can be separated out by differential centrifugation?

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. $200\times $g

  2. $500\times $ g

  3. $800\times$g

  4. $8000\times$g

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Correct Option: D

Which is the technique separates proteins according to their molecular weight?

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. PAGE

  2. Affinity chromatography

  3. Ion exchange chromatography

  4. Gel filtration

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Correct Option: D

Heavier and lighter isotropic forms of an element can be separated by which technique?

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. Electrophoresis

  2. Density gradient centrifugation

  3. Buoyant density centrifugatio

  4. Chromatography

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Correct Option: C
Explanation:

Buoyant density centrifugation 

It is also called isopycnie centrifugation or equilibrium density - gradient centrifugation which uses the concept of Buoyancy to separate molecules in solutions by their difference in density.

Name the equipment used in measuring thermal behaviour of water _______________.

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. SEM

  2. Differential scanning calorimeter

  3. Real time PCR

  4. MALDI-TOF

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Correct Option: B

Pure fractions of cellular components can be isolated by

spectrophotometer, colorimeter and biosensor biochemical techniques bio-chemistry

  1. Chromatography

  2. Scanning electron microscopy

  3. X-ray diffraction

  4. Differential centrifugation

  5. Autoradiography

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Correct Option: D