Paper Chromatography

This technique is used to

• determine volume

• separate moluecules in a mixture

• measure length

• analyze data from an experiment

• identify the molecular bases in DNA

• detect chemical toxins in the air

• stain specimens before observing them with a microscope

• separate a mixture of plant pigments

Tags

NGSS.HS-LS1-1

A technique used to analyze pigments in spinach leaves is shown in the diagram below.

This technique is known as

• paper chromatography

• gene manipulation

• dissection

• staining

Base your answer to question 82 on the results of an experiment using plant pigments represented below and on your knowledge of biology.

Which phrase could be used to describe this technique?

• the use of chromatography to separate molecules in a mixture

• the use of cut leaves to observe certain colors

• using indicators to determine pH

• using dichotomous keys to identify plants

This procedure is used to

• detect glucose in a solution

• determine the rate of photosynthesis

• separate molecules in a mixture

• examine gene sequences

This setup is part of the technique known as

• electrophoresis

• biological staining

• dissection

• chromatography

In order to compare the composition of the pigments on the suspect's jeans to the pigments of the plants at the home, the forensic scientist should use

• restriction enzymes

• genetic engineering

• paper chromatography

• receptor molecules

The student is preparing two strips of paper for a chromatography activity. After adding a dot of the ink from the marker pen to the line on the paper on the right, the next step should be to place the strips in a beaker of solvent with the solvent level

• even with the dot of ink on the paper

• between the bottom of the paper and the dot of ink

• just below the bottom edge of the paper

• slightly above the dot of ink on the paper

Tags

NGSS.MS-PS2-5