In the five-kingdom classification, Chlamydomonas and Chlorella have been included in

• Protista

• Algae

• Plantae

• Plantae

Organisms called Methanogens are most abundant in a 

• cattle yard

• polluted stream

• hot spring

• hot spring

Continuous addition of sugars in 'fed-batch' fermentation is done to

• obtain antibiotics 

• purify enzymes

• degrade sewage

• degrade sewage

In eubacteria, a cellular component that resembles eukaryotic cells is

• nucleus

• ribosomes

• cell wall

• cell wall

Which one of the following animals is correctly matched with its particular named taxonomic category?

• Cuttlefish - Mollusca, a class

• Humans  - Primata, the family

• Housefly - Musca, an order

• Housefly - Musca, an order

Which one of the following is wrongly matched?

• Puccinia - Smut

• Root - Exarch protoxylem

• Cassia - Imbricate aestivation

• Cassia - Imbricate aestivation

Virus envelope is known is 

• capsid

• virion

• nucleoprotein

• nucleoprotein

An example of endomycorrhiza is 

• Nostoc

• Glomus

• Agaricus

• Agaricus

Select the correct combination of the statement (A-D) regarding the characteristics of certain organisms.

A. Methanogens are Archaebacteria, which produce methane in marshy areas.
B. Nostoc is a filamentous blue-green algae, which fixes atmospheric nitrogen.
C. Chemosynthetic autotrophic bacteria synthesise cellulose from glucose.
D. Mycoplasma lacks a cell wall and can survive without oxygen.

• B, C

• A, B,C

• B, C, D

• B, C, D

90.

Which one of the following has haplontic life cycle?

• Funaria

• Polytrichum

• fully developed foetus and placenta

• fully developed foetus and placenta