Animal Kingdom — BIOLOGY STD 11 Science — Question

$(i)$ Methanogens are archaebacteria which produce methane in marshy areas.

$(ii)$ Nostoc is a filamentous blue­green alga which fixes atmospheric nitrogen.

$(iii)$ Chemosynthetic autotrophic bacteria synthesize cellulose from glucose.

$(iv)$ Mycoplasma lack a cell wall and can survive without oxygen.The correct statements are

$I$. causes partial oxidation of glucose (one molecule) to form $2$-molecules of pyruvic acid and $2$ $ATP$ as net gain

$II$. takes place in all living cells

$III$. uses $2$ $ATP$ at two steps

$IV$. scheme was given by Gustav Embden, Otto Mayerhof and J Parnas

Choose the correct option containing appropriate statements from the above