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Use Presence–Absence Patterns to Identify Cells
A structure-presence table can identify a cell type by combining universal and lineage-specific features.
NSEB · Cell Biology · 1 linked question · 100% coverage
Know this first
Living-system questions are solved by matching a structure or organism to its function, process and stated condition.
Structure · The part being namedFunction · What that part doesCondition · The situation that changes the answer
Study deeper: NCERT Biology · Cell Biology
Read the distribution pattern
Ribosomes occur in all cells. Endoplasmic reticulum is found in eukaryotes but not bacteria. Cell walls are present in plants and bacteria but absent from animal cells. Intersecting these patterns identifies each row without relying on a single clue.
OlympIQ exam lens
- ✓Ribosomes: plant, animal and bacterial cells.
- ✓ER: plant and animal cells, not bacteria.
- ✓Cell wall: plant and bacteria, not animal cells.
OlympIQ trap
Use more than one row when two structures could fit the same cell type.
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