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Algae (GATE - XL)

GATE NET SLET

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following algae are used as larvicides?

  1. Chlorella and Aulosira
  2. Chlorella and Chara
  3. Aulosira and Chara
  4. Chlorella and Pelvetia
  5. Chara and Pelvetia
Question 2 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

  1. Red colour of members of Bangiophyceae is due to presence of phycocyanin.
  2. In red algae, food is stored in the form of floridean polysaccharides.
  3. In Phaeophyceae, flagella are inserted laterally.
  1. Only 1
  2. Only 2
  3. Only 3
  4. 1 and 2
  5. 2 and 3
Question 3 Multiple Choice (Single Answer)

Which of the following algae find application in waste water treatment?

  1. Acetabullaria
  2. Pondorhina
  3. Euridina
  4. Macrocystis
  1. 1 and 2
  2. 1 and 4
  3. 2 and 3
  4. 2 and 4
  5. 3 and 4
Question 4 Multiple Choice (Single Answer)

Which of the following blue-green algae is a very high source of protein, minerals, vitamins, beneficial pigments and antioxidants?

  1. Spirulina
  2. Chlorella
  3. Chlamydomonas
  4. Quorn
  5. Aphanizomenon
Question 5 Multiple Choice (Single Answer)

Which of the following algae are used as source of algin?

  1. Gelidium
  2. Macrocystis
  3. Gloeopeltis
  4. Laminaria
  5. Ascophyllum
  1. 1, 2 and 3
  2. 1, 3 and 5
  3. 2, 3 and 4
  4. 2, 4 and 5
  5. 3, 4 and 5
Question 6 Multiple Choice (Single Answer)

Which of the following algae is/are rich sources of algin, iodine and mannitol?

  1. Laminaria
  2. Chara
  3. Polysiphonia
  1. Only 1
  2. Only 2
  3. Only 3
  4. 1 and 2
  5. 2 and 3
Question 7 Multiple Choice (Single Answer)

Which of the following algae is used for the purpose of genetic research?

  1. Acetabularia
  2. Anacystis
  3. Synechococcus
  4. Chlorella
  5. Spirulina
Question 8 Multiple Choice (Single Answer)

Which of the following is a rhodophyte used as food for humans and various species of shellfish?

  1. Spirogyra
  2. Cladophora
  3. Hydrodictyon
  4. Spirulina
  5. Gracilaria
Question 9 Multiple Choice (Single Answer)

Which of the following algae are used as source of bromine?

  1. Rhodomela
  2. Polysiphonia
  3. Vovox
  4. Ulothrix
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 2 and 4
  5. 3 and 4
Question 10 Multiple Choice (Single Answer)

Which of the following is a pair of Phaeophyceae?

  1. Gelidium and Fucus
  2. Batrachospermum and Gelidium
  3. Vaucheria and Nostoc
  4. Laminaria and Fucus
  5. Nostoc and Laminaria
Question 11 Multiple Choice (Single Answer)

Match the columns:
Column – I Column – II
P. Epiphytic 1. Occillatoria
Q. Endophytic 2. Anabaena
R. Epizoic 3. Oedogonium
S. Endozoic 4. Zoochlorella
  1. P - 1, Q - 2, R - 3, S - 4
  2. P - 2, Q - 1, R - 4, S - 3
  3. P - 3, Q - 2, R - 1, S - 4
  4. P - 4, Q - 3, R - 2, S - 1
  5. P - 1, Q - 2, R - 4, S - 3
Question 12 Multiple Choice (Single Answer)

Which of the following is a pair of algae with multicellular colonial thallus organisation?

  1. Chlamydomonas and Chlorella
  2. Volvox and Gonium
  3. Ulothrix and Spyrogyra
  4. Gonium and Chlorella
  5. Chlamydomonas and Spirogyra
Question 13 Multiple Choice (Single Answer)

Which among the following algae is used to slowly dilate the cervix to induce labour and delivery?

  1. Ulva
  2. Laminaria
  3. Spirogyra
  4. Digenia
  5. Sargassum
Question 14 Multiple Choice (Single Answer)

Match the columns:
Column – I 
        </strong>|<strong>       Column &#x2013; II</strong>|

|A. Agar agar|1. Gloiopeltis|
|B. Algin|2. Gelidium|
|C. Funori|3. Laminaria|

  1. A - 1, B - 2, C - 3
  2. A - 1, B - 3, C - 2
  3. A - 2, B - 1, C - 3
  4. A - 2, B - 3, C - 1
  5. A - 3, B - 1, C - 2
Question 15 Multiple Choice (Single Answer)

Which of the following algae reproduce through isogamous mode?

  1. Polysiphonia
  2. Cladophora
  3. Oedogonium
  4. Pandoria
  5. Fucus
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