Q1. Which division of algae includes species with discoid, cup-shaped, and spiral chloroplasts?A. ChlorophyceaeB. PhaeophyceaeC. RhodophyceaeD. Xanthophyceae
Q2. Which of the following statements about Chlorophyceae is correct?A. Chlorophyceae store food as laminarin and mannitol.B. The dominant pigments in Chlorophyceae are chlorophyll a and b.C. Chlorophyceae are primarily marine brown algae.D. Sexual reproduction in Chlorophyceae is always oogamous.
Q3. What is the primary function of the air bladders in brown algae like Sargassum?A. ReproductionB. BuoyancyC. PhotosynthesisD. Anchorage
Q4. Which of the following statements about Phaeophyceae is correct?A. Phaeophyceae are unicellular algae found in freshwater only.B. Kelps, a type of Phaeophyceae, can reach heights of 100 meters.C. Their zoospores lack flagella entirely.D. The dominant pigment in Phaeophyceae is chlorophyll b.
Q5. Which of the following statements about Rhodophyceae is correct?A. Rhodophyceae have flagellated zoospores for asexual reproduction.B. Porphyra, a red alga, is used as food.C. Rhodophyceae store food as mannitol and laminarin.D. The dominant pigment in Rhodophyceae is chlorophyll b.
Q6. Which type of root association is found in Pinus for nitrogen fixation?A. Coralloid rootsB. MycorrhizaC. TaprootsD. Adventitious roots
Q7. Which of the following statements about gymnosperms is incorrect?A. Gymnosperms have tap roots, often with mycorrhizal associations.B. The seeds in gymnosperms are naked and not covered post-fertilization.C. Gymnosperms produce a pollen tube that grows towards the archegonia.D. The female gametophyte in gymnosperms is free-living and photosynthetic.
Q9. What is the ploidy level of primary endosperm nucleus in angiosperms?A. HaploidB. DiploidC. TriploidD. Tetraploid
Q10. In gymnosperms, which part forms the pollen chamber?A. OvuleB. MegasporophyllC. MicropyleD. Integument