Chapter 2 – Biological Classification

All eukaryotic unicellular organisms belong to

• a.Monera
• b.Protista
• c.Fungi
• d.Bacteria

The five kingdom classification was proposed by

• a.R.H. Whittaker
• b.C.Linnaeus
• c.A. Roxberg
• d.Virchow

Organisms living in salty areas are called as

• a.Methanogens
• b.Halophiles
• c.Heliophytes
• d.Thermoacidophiles

Naked cytoplasm, multinucleated and saprophytic are the characteristics of

• a.Monera
• b.Protista
• c.Fungi
• d.Slime molds

An association between roots of higher plants and fungi is called

• a.Lichen
• b.Fern BNIT U CLASSIFICATION I: DIVERSITY IOLOGICAL IN THE LIVING WORLD 7
• c.Mycorrhiza
• d.BGA

A dikaryon is formed when

• a.Meiosis is arrested
• b.The two haploid cells do not fuse immediately
• c.Cytoplasm does not fuse
• d.None of the above

Contagium vivum fluidum was proposed by

• a.D.J. Ivanowsky
• b.M.W. Beijerinek
• c.Stanley
• d.Robert Hook

Associations between Mycobiont and Phycobiont are found in

• a.Mycorrhiza
• b.Root
• c.Lichens
• d.BGA

Difference between Virus and Viroid is

• a.Absence of protein coat in viroid but present in virus
• b.Presence of low molecular weight RNA in virus but absent in viroid
• c.Both a and b
• d.None of the above

With respect to fungal sexual cycle, choose the correct sequence of events

• a.Karyogamy, Plasmogamy and Meiosis
• b.Meiosis, Plasmogamy and Karyogamy
• c.Plasmogamy, Karyogamy and Meiosis
• d.Meiosis, Karyogamy and Plasmogamy

Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?

• a.Monera
• b.Protista
• c.Fungi
• d.None of the above

Members of phycomycetes are found in i. Aquatic habitats ii. On decaying wood iii. Moist and damp places iv. As obligate parasites on plants Choose from the following options

• a.None of the above
• b.i and iv
• c.ii and iii
• d.All of the above