BIOL102 Taxonomical Classification Practice Questions PDF

## Taxonomical Classification **A17.** The basic unit of taxonomical classification is the * **D.** Genus **A18.** Grouping 1 in the diagram is * **E.** A & B. * A clade * A monophyletic group **A19.** Cladistic analysis places the birds in the same group as * **E.** None of the above **A...

## Taxonomical Classification **A17.** The basic unit of taxonomical classification is the * **D.** Genus **A18.** Grouping 1 in the diagram is * **E.** A & B. * A clade * A monophyletic group **A19.** Cladistic analysis places the birds in the same group as * **E.** None of the above **A20.** Which group(s) is/are eukaryotic? * **E.** B and C * Protists * Fungi **A21.** The microbiological term that describes the rod shape of a bacterium is * **D.** Bacillus **A22.** A nucleoid is a characteristic feature of: * **C.** Bacteria **A23.** What is the term used to describe a bacterium that inhabits high pressure environments? * **B.** Barophile **A24.** Cell membrane lipids containing isoprene units are a structural feature of * **A.** Archaea **A25.** A microscope having a 20X objective and a 10X ocular produces a total magnification of * **C.** 200 **A26.** Which of the following microorganisms contains a nucleus? * **E.** *Saccharomyces* **A27.** A pseudopodium is the locomotory structure of * **D.** Amoeba **A28.** The Baltimore classification categorizes viruses based on * **B.** Nucleic Acids **A29.** What is the typical size range of viruses? * **C.** 0.02-0.2 µm **A30.** The causal agent of bovine spongiform encephalopathy is a/an * **A.** Prion **A31.** Halophilic archaea are inhabitants of * **E.** Salt lakes **A32.** The capsid is a characteristic feature of * **B.** Viruses **A33.** Which one of the following rRNA genes is a phylogenetic marker for the eukaryotic microbes? * **D.** 18S **A34.** The simplified Derbesia life cycle can be labelled as follows: * X = sporophyte, W = spore * V = gametophyte, Z = zygote * Y = gamete **A35.** *Scenedesmus* is an example of the following algal type * **B.** Coenobium **A36.** The fossil sporophytes of the earliest land plants date back to the * **D.** Silurian **A37.** The mechanism of spore dispersal is correctly given for the following Bryophyte: * **B.** *Riccia* - hygroscopic movement of elaters **A38.** Comparing Moss and Liverwort characteristics: | Feature | Moss | Liverwort | |---|---|---| | Capsule | Simple capsule of few cell types | Complex capsule of many cell types | | Seta growth | Fast-growing seta | Slow-growing seta | | Morphology | Sometimes thallose | Always leafy | | Capsule structure | Capsule with elaters | Capsule with peristome | | Stomata | Capsule may have stomata | Capsule without stomata | **A39.** Leptoids are * **B.** Food-transporting cells found in some mosses **A40.** A sorus is characteristic of * **D.** Ferns **A41.** In the ferns: * **B.** The sporophyte is long-lived compared to the gametophyte * **C.** The young sporophyte develops independently of the gametophyte **A42.** The fossil shown is most closely related to * **A.** *Lycopodium* **A43.** Club mosses and horsetails: * **B.** Have never been a dominant part of the Earth's vegetation * **D.** Possess small leaves * **E.** Lack vascular tissue in their sporophytes **A44.** The comparison table is correctly filled as follows: | Feature | Conifer | Cycad | |---|---|---| | Stem | Woody | Pithy | | Leaves | Large-leaved | Small-leaved | | Sexes | Dioecious | Monoecious | | Location | Mainly tropical | Mainly temperate | | Leaf retention | Mainly deciduous | Evergreen | **A45.** Cycads * **B.** Always have their megasporophylls grouped into cones **A46.** The following trait is shared by gymnosperms and angiosperms: * **A.** Seed production **A47.** In flowering plants, the following is equivalent to the female gametophyte: * **E.** Embryosac **A48.** Oogamy is defined as the fusion of * **B.** a large, non-motile egg and a small, motile sperm **A49.** Alternation of generations in land plants requires: * **A.** Sporophytes to undergo meiosis to produce haploid spores **A50.** The group with the highest number of species today is * **D.** Flowering plants