Biological Classification - CCM

Protists are ..

• (a) single-celled eukaryotes

• (b) multicellular eukaryotes

• (c) single-celled prokaryotes.

• (d) single-celled akaryote.

Bladderwort and Venus fly trap are examples of

• (a) insectivorous plants

• (b) parasitic plants

• (c) N2 – rich plants

• (d) aquatic plants

Dikaryon formation is the characteristic feature of

• (a) ascomycetes and basidiomycetes.

• (b) phycomycetes and basidiomycetes.

• (c) ascomycetes and phycomycetes.

• (d) phycomycetes and zygomycetes

Which of the following statements is correct for both blue-green algae and bacteria ?

• (a) Both show anaerobic respiration.

• (b) Both have chlorophyll pigment.

• (c) Both are devoid of true nucleus.

• (d) None of the above

The bacteria which oxidize various inorganic substances and use the released energy for the synthesis of food are called _______________.

• (a) Archaebacteria

• (b) Heterotrophic bacteria

• (c) Photosynthetic autotrophic bacteria

• (d) Chemosynthetic autotrophic bacteria

Which of the following statements is correct for dinoflagellates flagella ?

• (a) A single flagellum lies in the transverse groove between the cell plates.

• (b) A single flagellum lies in the longitudinal groove between the cell plates.

• (c) Two flagella, one lies longitudinally and the other transversely in a furrow between the wall plates.

• (d) Flagella are absent.

Which of the following is/are example(s) of deuteromycetes?

• (a) Alternaria

• (b) Colletotrichum

• (c) Trichoderma

• (d) All of these

Which of the following group of kingdom protista is being described in the statements given below ? (i) This group includes diatoms and golden algae. (ii) They are microscopic and float passively in water currents (plankton). (iii) Most of them are photosynthetic. (iv) They have deposits in their habitat; this accumulation over billion of years is referred to as ‘diatomaceous earth’.

• (a) Dinoflagellates

• (b) Chrysophytes

• (c) Euglenoids

• (d) Slime moulds

Assertion: Yeasts, such as Saccharomyces Cerivisiae are used in baking industry.
Reason: Carbon dioxide produced during fermentation causes bread dough to rise by thermal expansion.

• a) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

• . (b) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion

• . (c) If Assertion is true but Reason is false.

• (d) If both Assertion and Reason are false.

The figure given below shows the structure of a bacteriophage. Identify its parts labelled as A, B, C and D.

• (a) Head Tail fibres Sheath Collar

• (b) Head Collar Sheath Tail fibres

• (c) Head Sheath Collar Tail fibres

• (d) Collar Tail fibres Head Sheath