MCQ
Identify $X$ in given figure.
- AStem modified into tendril
- BStem modified into spine
- ✓Roots arising from nodes
- DModification of stem for food storage.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ In chlorophyceae, the stored food material is starch and the major pigments are chlorophyll $-a$ and $d$.
$(ii)$ In phaeophyceae, laminarian is the stored food and major pigments are chlorophyll $-a$ and $b$.
$(iii)$ In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll $-a, d$ and phycoerythrin
$I.$ Production of caffeine, tannin quinine
$II.$ More production of non-woody tissues
$III.$ Productions of hairs, thorns, spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair