Chapter 9

NCERT
Class 11
Biology
Solutions
How do scientists test for biomolecules?

Question:

How do scientists test for biomolecules?

Answer:

Labs use qualitative tests to detect presence (like Benedict’s for sugar, Biuret for proteins) and quantitative tests to measure amount (like Bradford assay or spectrophotometry).

Testing Highlights

  • Qualitative: Shows if a biomolecule is present.
  • Quantitative: Gives exact concentrations.
  • Used in food analysis, medical diagnostics, and research.