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NEET · Biology · Class 11

Plant Kingdom — NEET Biology MCQs

30 questions written by hand against the NCERT chapter. Every wrong option is explained, not just the right one.

30questions
10/14/6easy / medium / hard
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Sample questions from this chapter

Which pigments dominate in Chlorophyceae?
  1. Chlorophyll a and b ✓
  2. Chlorophyll a and c with fucoxanthin
  3. Chlorophyll a and d with phycoerythrin
  4. Chlorophyll a alone in heterocysts
Answer: A. Green algae appear grass green because chlorophyll a and b dominate. Fucoxanthin is the closest trap because it is the signature accessory pigment of another algal class.
Why not B: This is the brown-algal pigment set.
Why not C: This is the red-algal pigment set.
Why not D: Heterocysts belong to cyanobacteria, which are outside Plantae here.
A marine alga has fucoxanthin, laminarin and unequal lateral flagella. It belongs to:
  1. Rhodophyceae
  2. Chlorophyceae
  3. Phaeophyceae ✓
  4. Cyanobacteria
Answer: C. Fucoxanthin, laminarin/mannitol and unequal lateral flagella diagnose Phaeophyceae. Rhodophyceae is tempting because both are predominantly marine, but red algae lack flagella.
Why not A: Red algae have phycoerythrin, floridean starch and no flagellated stages.
Why not B: Green algae have chlorophyll b, starch and equal apical flagella.
Why not D: Cyanobacteria are prokaryotes outside the three algal classes.
Assertion (A): A bryophyte sporophyte is nutritionally dependent on its gametophyte. Reason (R): The gametophyte is the photosynthetic dominant plant body.
  1. Both A and R are true, and R explains A ✓
  2. Both A and R are true, but R does not explain A
  3. A is true, but R is false
  4. A is false, but R is true
Answer: A. Both statements are true, and the photosynthetic dominant gametophyte nourishes the attached sporophyte. Treating the facts as unrelated is tempting when life-cycle stages are memorised separately.
Why not B: The gametophyte’s dominance and photosynthesis directly support the attached sporophyte.
Why not C: The bryophyte gametophyte is indeed dominant and photosynthetic.
Why not D: The sporophyte remains attached and derives nourishment.

These are 3 of the 30 questions in the test. Take the full chapter test →

Read the chapter first

Every NCERT question in this chapter is solved, free: NCERT solutions — Plant Kingdom →

Other NEET Biology chapters

The Living WorldBiological ClassificationAnimal KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsStructural Organisation in Animals

All 32 chapters →

Questions

How many NEET questions are there on Plant Kingdom?

This chapter test has 30 questions — 10 easy, 14 medium and 6 hard — all written against the NCERT Class 11 chapter.

Is this NEET Biology chapter test free?

Yes. Every chapter test is free with no login. The only paid thing on the site is the full-length 90-question Biology mock and its all-India rank.

Do the questions explain the wrong options?

Yes — every distractor carries its own explanation naming the specific misconception that makes a student pick it. That is the part most question banks skip, and it is the part that changes your next attempt.