MCQs on Charophyta.pptxhghgdddddfgrrrrrety

Charophyta.pptxhghgdddddfgrrrrrety

1. BSc. Botany Honours (1 st Semester) Core Paper - I MICROBIOLOGY AND PHYCOLOGY UNIT - 4 CHAPTER - 1 CHAROPHYTA Practice these 20 MCQs on Charophyta (1 mark each) 2023-2024

2. QUESTION # 01 What is the main habitat of Charophyta ? A : Marine B : Freshwater C : Terrestrial D : Desert B : Freshwater

3. QUESTION # 02 Which of the following is a characteristic feature of Charophyta ? A : Chlorophyll a and b B : Chlorophyll a and c C : Chlorophyll a only D : Chlorophyll b only B : Chlorophyll a and c

4. QUESTION # 03 Charophytes are considered the closest relatives to which group of plants? A : Bryophytes B : Pteridophytes C : Gymnosperms D : Angiosperms D: Angiosperms

5. QUESTION # 04 What is the primary method of reproduction in Charophyta ? A : Binary fission B : Spore formation C : Fragmentation D : Seed formation C: Fragmentation

6. QUESTION # 05 Which structure in Charophyta resembles the root-like structures in higher plants? A : Rhizoids B : Stolons C : Bulbils D : Tubers A: Rhizoids

7. QUESTION # 06 The cell wall of Charophytes contains a unique polymer known as: A : Cellulose B : Lignin C : Pectin D : Charophytein D: Charophytein

8. QUESTION # 07 Charophyta belong to which division of green algae? A : Chlorophyta B : Rhodophyta C : Phaeophyta D : Euglenophyta A: Chlorophyta

9. QUESTION # 08 What is the reproductive structure of Charophyta that is often mistaken for a flower? A: Conifer cone B : Strobilus C : Chara globule D : Oogonium C: Chara globule

10. QUESTION # 09 Charophytes are often called " stoneworts " due to the presence of: A : Calcium carbonate deposits B : Silica shells C : Lignified cells D : Starch granules A: Calcium carbonate deposits

11. QUESTION # 10 Which of the following is not a genus of Charophyta ? A : Chara B : Spirogyra C : Nitella D : Tolypella B: Spirogyra

12. QUESTION # 11 Charophyta play a crucial role in freshwater ecosystems by: A : Absorbing excess nutrients B : Producing oxygen C : Providing habitat for microorganisms D : All of the above D: All of the above

13. QUESTION # 12 The process of asexual reproduction in Charophyta involves the formation of: A : Zoospores B : Sporangia C : Gemmae D : Conidia C: Gemmae

14. QUESTION # 13 Charophytes are known for their resistance to environmental stress, including: A : Drought B : High salinity C : Extreme temperatures D : All of the above D: All of the above

15. QUESTION # 14 Charophyta exhibit a haploid-dominant life cycle. What does this mean? A : The haploid phase is longer-lived than the diploid phase. B : The diploid phase is longer-lived than the haploid phase. C : Both haploid and diploid phases have equal lifespans. D : There is no alternation of generations. A: The haploid phase is longer-lived than the diploid phase.

16. QUESTION # 15 Charophyta are important indicators of: A : Air pollution B : Water quality C : Soil fertility D : Climate change B: Water quality

17. QUESTION # 16 The filamentous structures in Charophytes are known as: A : Thalli B : Stolons C : Filaments D : Pseudopodia C: Filaments

18. QUESTION # 17 Charophyta are primarily found in which zone of freshwater bodies? A : Benthic zone B : Littoral zone C : Limnetic zone D : Profundal zone B: Littoral zone

19. QUESTION # 18 Charophytes reproduce sexually through the formation of: A : Zoospores B : Oospores C : Gemmae D : Conidia B : Oospores

20. QUESTION # 19 Which of the following is a common genus of Charophyta in North America? A : Fucus B : Ulva C : Chara D : Sargassum C: Chara

21. QUESTION # 20 Charophyta are ecologically important for their role in: A : Soil erosion prevention B : Carbon sequestration C : Nitrogen fixation D : Pollination B: Carbon sequestration

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