www.bbcnoun.com.ng EHS201 10/10 Which of these is not a nutritional requirement of microorganisms? Alluminium Which of these options is not a major class of microbial growth factor? Fibres What is the energy source of a nutritional type of microorganism photolithoautotroph? Light Organisms that use light as their energy source is Phototrophs Which of these organelles are involved in genetic control of the cell? Eucaryotic Ribosomes A media that distinquishes among different groups of microbes and even permit tentative identification of microorganism based on their biological characteristics is called? Differencial media Which of these is not a major type of bacterial plasmid? B Plasmids At what year did Christian Gram develop the Gram stain? 1884 What part of the bacteria cell helps it survive under harsh environmental conditions? Endospore A tumor is a growth or lump of tissue resulting from? Neoplasia