Plant Kingdom for NEET UG
The plant kingdom runs from simple algae to flowering plants. Following how each group solved life on land (water transport, seeds, flowers) makes the classification easy to remember.
BiologyClass 1177 MCQs2 lessons13 flashcards3 memory tricks
What you'll learn
- Algae, bryophytes and pteridophytes
Compare the three groups of non-seed plants and identify which generation dominates. - Gymnosperms, angiosperms and life cycles
Compare seed plants and describe the three plant life-cycle patterns.
Memory tricks
Algae, Bryophytes, Pteridophytes, Gymnosperms, Angiosperms.
Their sperm (antherozoids) must swim to the egg, so mosses and liverworts grow in damp, shady places. The gametophyte is the dominant stage.
Gymnosperms (Cycas, Pinus, Ginkgo) have ovules not enclosed in an ovary, so there is no fruit. Angiosperms enclose their seeds in a fruit.
Try 3 NEET-style questions
Q1. Given below are two statements. Statement I: Fucus, a brown alga, shows a diplontic life cycle. Statement II: Ectocarpus, Polysiphonia and kelps show a haplontic life cycle. In the light of the above statements, choose the correct answer.
- Both Statement I and Statement II are true
- Statement I is true but Statement II is false
- Both Statement I and Statement II are false
- Statement I is false but Statement II is true
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Answer: (2) Statement I is true but Statement II is false
Statement I is true: Fucus is diplontic. Statement II is false: Ectocarpus, Polysiphonia and kelps are haplo-diplontic. Haplontic examples are Volvox, Spirogyra and some Chlamydomonas.
Q2. The pigment fucoxanthin, which gives an olive-green to brown colour, is characteristic of
- brown algae (Phaeophyceae)
- green algae (Chlorophyceae)
- red algae (Rhodophyceae)
- mosses
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Answer: (1) brown algae (Phaeophyceae)
Brown algae have chlorophyll a, c, carotenoids and xanthophylls; the xanthophyll fucoxanthin gives them their colour.
Q3. Green algae usually have a rigid cell wall made of
- chitin only
- algin only
- an inner layer of cellulose and an outer layer of pectose
- peptidoglycan
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Answer: (3) an inner layer of cellulose and an outer layer of pectose
Green algae usually have a rigid cell wall with an inner layer of cellulose and an outer layer of pectose.
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