Class 11 | Biology | chapter 3 | Plant Kingdom

Which of the following statement is correct? 1. Ovules are not enclosed by ovary wall in gymnosperms 2. Selaginella is heterosporous, while Salvinia is homosporous 3. Horsetails are gymnosperms 4. Stems are usually unbranched in both Cycas and Cedrus [NEET 2018 ]

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Class 11 | Biology | chapter 3 | Plant Kingdom

Conifers are adapted to tolerate extreme environmental conditions because of 1. broad hardy leaves 2. superficial stomata 3. thick cuticle 4. the presence of vessels [NEET 2016 ]

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Class 11 | Biology | chapter 3 | Plant Kingdom

The plant group that produces spores and embryo but lacks vascular tissues and seeds is A Pteridophyta B Rhodophyta C Bryophyta D Phaeophyta

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Class 11 | Biology | chapter 3 | Plant Kingdom

What is true about male and female gametophyte in plant kingdom ? (a) In bryophytes and pteridophytes they have independent free-living existence. (b) In Gymnosperms and Angiosperms they have no independent free-living existence. (c) Both (a) and (b) (d) In bryophytes, pteridophytes and angiosperms they have free-living life. They remain in sporangia which are retained on sporophytes.

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Class 11 | Biology | chapter 3 | Plant Kingdom

Class 11 | Biology | chapter 3 | Plant Kingdom,Biology NCERT Diagrams

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MindMap Biology

Class 11 | Biology | chapter 3 | Plant Kingdom,MindMap

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Easy MCQs Biology

Which of the following statement(s) is/are true about gemmae? (i) These are specialised structures by which asexual reproduction take place in liverworts. (ii) They are green and multicellular. (iii) They develop in small receptacles called gemma cups. (iv) They detach from parent body and germinate to form new individuals. (a) (i) and (ii) (b) (ii) and (iii) (c) (i), (ii) and (iii) (d) All of these

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Class 11 | Biology | chapter 6 | Anatomy Of Flowering Plants

Gymnosperm [ one shot from NCERT]

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Class 11 | Biology | chapter 6 | Anatomy Of Flowering Plants

In Gymnosperm, endosperm is formed by (a) fusion between a male gamete and two polar nuclei. (b) fusion between a male gamete and a polar nuclei. (c) fusion between egg and male gamete. (d) germination of megaspore.

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Class 11 | Biology | chapter 3 | Plant Kingdom

What is the number and positions of insertions of flagella in class Rhodophyceae? (a) 2 – 8, equal, apical (b) 2, unequal, lateral (c) 2 – 6, equal, lateral (d) Absent

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Class 11 | Biology | chapter 3 | Plant Kingdom

In which of the following, all listed genera belong to the same class of Algae? (a) Chara, Fucus, Polysiphonia (b) Volvox, Spirogyra, Chlamydomonas (c) Porphyra, Ectocarpus, Ulothrix (d) Sargassum, Laminaria, Gracillaria

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Class 12 | Biology | chapter 14| Organisms and Populations

Diapause (1) Is a suspended development stage in zooplanktons (2) Can be seen in most of the fishes (3) Is seen in all sea animals (4) Is present in phytoplanktons

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