MCQ
Methanogens, particularly Methanobacterium grow anaerobically on cellulosic material and produce

$I.$ methane

$II.$ carbon dioxide

$III.$ oxygen

$IV.$ ethane

Choose the correct option

  • $I$ and $II$
  • B
    $I$ and $III$
  • C
    $III$ and $IV$
  • D
    $I, II$ and $III$

Answer

Correct option: A.
$I$ and $II$
a
Biogas is a methane rich fuel gas produced by anaerobic breakdown or digestion of biogas with the help of methanogenic bacteria. Biogas is made up of methane $(50-70\, \%)$, carbon dioxide $(30-40 \, \%)$ with traces of nitrogen, hydrogen sulphide and hydrogen

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A population will not exist in Hardy Weinberg equilibrium if:
Organic farming includes

$I.$ use of biofertilisers and biopesticides

$II.$ crop rotation

$III.$ locally developed pest resistant varieties

Choose the correct option

Restriction endonuclease, an enzyme used in Genetic Engineering is employed for
Perisprem is found in
Physical removal of large and small stable solid particles from the sewage through filtration and sedimentation is called
Which bacterium responsible for large holes in 'Swiss chees' are due to production of a large amount of $CO_2$ ?
Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?

$(a)$ It results in the formation of haploid gametes

$(b)$ Differentiation of gamete occurs after the completion of meiosis

$(c)$ Meiosis occurs continuously in a mitotically dividing stem cell population

$(d)$ It is controlled by the Luteinising hormone (LH) and FollicleStimulating Hormone (FSH) secreted by the anterior pituitary

$(e)$ It is initiated at puberty

Choose the most appropriate answer from the options given below:

Mammalian placenta has minute finger like projections called
Find out the right aspects of lactational amenorrhoea

$I$. Ovulation do not occur during the lactational period

$II$. Chances of the failure of contraception are almost nil upto six months following parturition

$III$. Side effects are almost nil

$IV$. It is a natural method of contraception

$V$. It increases phagocytosis of sperms

How many meiotic divisions occur in cells for the formation of $32$ spermatids?