Biology
Prokaryotes
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#1 Archaea live in both extreme and moderate environments those living in extreme condition are called:
A) Extremophile B) Methanogeus C) Extremophyte D) Extremogeus
Answer: A
#2 Rhizobium belongs to:
A) Beta-protobacteria B) Gama-protobacteria C) Alpha-protobacteria D) Delta-protobacteria
Answer: C
#3 The first organisms that oxygenated the atmosphere:
A) Cyanobacteria B) Photoautotrophic organisms C) Anaerobic organisms D) All of the above
Answer: A
#4 What event is thought to have contributed to the evolution of eukaryotes ?
A) Global warming B) Glaciation C) Volcanic activity D) Oxygenation of the atmosphere
Answer: D
#5 The Sulphur Bacteria which obtain energy by oxidizing H2S instead of water is called:
A) Alpha proteobacteria B) Beta proteobacteria C) Gamma proteobacteria D) Gamma proteobacteria
Answer: C
#6 Rhizobium belongs to sub group of bacteria called:
A) Alpha-Protobacteria B) Beta-Protobacteria C) Gamma-Protobacteria D) Delta-Protobacterla
Answer: A
#7 D.N.A of bacterium is:
A) Haploid, single stranded, coiled B) Diploid, double stranded, coiled C) Haploid, double stranded, coiled D) Diploid, single stranded, coiled
Answer: C
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