Name the two main types of cell organization in algae.
Q.1. Name the two main types of cell organization in algae.
Ans. Prokaryotic and Eukaryotic.
Q.2. What are cryophytic algae ?
Ans. Algae growing on snow, e.g. Chlamydomonas yellowstonensis, Ancyclonema, etc.
Q.3. Name some halophytic algae.
Ans. Chlamydomonas ehrenbergii, Dunaliella, these are the algae growing in water having very high percentage of salts.
Q.4. Name some epiphytic algae.
Ans. Oedogonium, Ulothrix, Rivularia.
Q.5. Name four algal members utilized as food.
Ans. Porphyra tenera, Chlorella, Ulva lactuca and Sargassum enerve.
Q.6. What are the algal members which yield agar-agar ?
Ans. Gracillaria and Gelidium.
Q.7. Name any four algal members which are helpful in nitrogen fixation.
Ans. Oscillatoria, Anabaena. Rivularia and Gloeocapsa.
Q.8. Name any two unicellular algae.
Ans. Chlorella and Chlamydomonas.
Q.9. What is the botanical name of water-ne t?
Ans. Hydrodictyon.
Q.10. What are Fungi ?
Ans. Chlorophyll-less thallophytes or chlorophyll-less non-vascular plants are referred as fungi.
Q.11. What is Mycology ?
Ans. The branch of botany that deals with the study of fungi is called mycology (Gr. mykes mushroom, logos-study).
Q.12. What do you mean by rhizosphere?
Ans. Rhizosphere is the zone around the roots which contain the microorganisms.
Q.13. What are coprophyllous fungi ?
Ans. Fungi growing on dung. e.g. Pilobolus.
Q.14. Bryophytes contain which type of plant body ?
Ans. Plant body is gametophytic in Bryophytes.
Q.15. Name any two members belonging to Hepaticopsida.
Ans. Riccia and Marchantia.
Q.16. What are the names of Sex organs of Chara ?
Ans. Glouble and nucule.
Q.17. What is calyptra ?
Ans. It is the broken part of the archegonium surrounding the sporophyte.
Q.18. What is a spore ?
Ans. The spore is a haploid, unicellular and uninucleate, first cell of gametophytic generation.
Q.19. In the chloroplast of which group of bryophytes occur pyrenoids ?
Ans. Pyrenoids occur in the chloroplast of Anthocerotales (Anthoceros and Notothylas).
Q.20. What is Buxbaumia?
Ans. It is a saprophytic member of Bryophyta.
Q.21. What types of scales are found in Marchantia ?
Ans. Two types of scales are found in Marchantia, i.e. appendiculate and liguate.
Q.22. In which bryophyte, several antheridia are present in an antheridial chamber ?
Ans. In Anthoceros.
Q.23. In which bryophyte, pseudoelaters occur?
Ans. Anthoceros.
Q.24. Name two bryophytes having columella.
Ans. Funaria and Anthoceros.
Q.25. Name any famous Indian pteridologist.
Ans. Dr. P.N. Mehra
Q.26. What are sporophylls ?
Ans. The fertile leaves which bear sporangia are called sporophylls.
Q.27. What are sporocarps ?
Ans. The sporocarps are the bean-shaped, stalked fruiting bodies of some plants. e.g. Marsilea.
Q.28. Name any two heterosporous pteridophytes.
Ans. Selaginella and Marsilea.
Q.29. Name two known species of Rhynia.
Ans. Rhynia major and R. gwynne-vaughani.
Q.30. Largest antherozoid in the plant kingdom is found in :
Ans. Equisetum.
Q.31. What are the main groups of fungi ?
Ans. Myxomycetes (Slime molds), Phycomycetes (Algal fungi). Ascomycetes (Sac fungi). Basidiomycetes (Club fungi) and Deuteromycetes (Fungi imperfecti).
Q.32. What are the three important features of fungi ?
Ans. Lack of chlorophyll, heterotrophic mode of nutrition and reserve food in the form of oil and glycogen.
Q.33. What is the commbn name of Phytophythora?
Ans. Late-blight.
Q.34. Name one example each of black, yellow and brown rusts ?
Ans. Puccinia graminis (black). Puccinia striiformis (yellow) and Puccinia recondita (brown).
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