Home › CBSE Class 11 › biology › Plant Kingdom — Algae (Chlorophyceae/Phaeophyceae/Rhodophyceae), Bryophytes, Pteridophytes, Gymnosperms, Angiosperms › Gymnosperms are defined by having:
Gymnosperms are defined by having:
ANAKED seeds — ovules not enclosed by an ovary wall, exposed before and after fertilisation
BOnly unicellular bodies
CCell walls without cellulose
DFlowers and fruits
Answer & Solution
Correct answer: A. NAKED seeds — ovules not enclosed by an ovary wall, exposed before and after fertilisation
Greek 'gymnos' = naked, 'sperma' = seeds. Gymnosperms produce naked seeds because ovules are not enclosed in an ovary wall. They include Cycas, Pinus, Ginkgo, Sequoia (giant redwood).
Related questions
Identify the gymnosperm whose pinnate leaves persist for years and which bears male and feAngiosperms differ from gymnosperms in that:Identify the gymnosperm that has coralloid roots ASSOCIATED with N₂-fixing cyanobacteria.Pteridophytes that produce TWO KINDS of spores (macro and micro spores) are called:In MOSSES (a bryophyte), the predominant gametophyte has TWO stages — identify them in corPhycomycetes (fungal class from previous chapter) and Phaeophyceae (algal class) are easilIdentify the type of sexual reproduction where gametes are SIMILAR IN SIZE AND BOTH non-flAGAR — used for microbiology media and ice creams — is commercially obtained from: