MCQ
Milk is converted into curd $(yoghurt)$  by biological activity of
  • A
    Algal cells
  • B
    Fungal cells
  • C
    Chloroplasts
  • Lactobacillus cells

Answer

Correct option: D.
Lactobacillus cells
d
It’s obvious.

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

All arteries carry oxygenated blood except
The first mammals were like.....
Plasma is a straw coloured viscous fluid constituting nearly ...$A$...$\%$ of the blood, ... $B$...$\%$ of the plasma is water and the protein constitutes ...$C$...$\%$ of it. Choose the correct option for the blanks $A, B$ and $C$
Colour blindness is a disease usually affecting man but the factor for it is transmitted to the children always by woman. This is because particular factor is located on
Which is viviparous
Select the incorrect match
Compositae -Basal placentation
Brassicaceae -Parietal placentation
Malvaceae   -Twisted aestivation
Poaceae   -Vexillary aestivation
$A$ person with antigen $A$ in $RBC$ and antibody $b$ in plasma belongs to blood group
Which one of the following statements are correct ?
(i) In Miller's experiment electrodes were used as energy source and temperature inside spark chamber was $800^{\circ}C$.
(ii) Charles Darwin gave the idea of natural selection based on his observations made during a sea voyage in a sail ship called H.M.S Beagle.
(iii) According to Darwin, fitness of individual or population ultimately refers to reproductive fitness.
(iv) Alfred Wallace who worked in Malay Archepelago had also come to similar conclusion as drawn by Darwin.
(v) Paleontological evidence show that different- aged rock sediment contain fossils of different life form.
(vi) One of the main method of determining the age of the fossils is radioactive-dating.
(vii) Homology is based on convergent evolution.
(viii) Homologous structures indicates different ancestry.
(ix) The pattern of bones of forelimbs of whales, bats, cheetah and human have the same structure developed along different direction due to adaptations to different needs. This is divergent evolution.
(x) Wings of butterfly and birds show convergent evolution whereas eye of octopus and of mammals show divergent evolution.
Choose the correct option given below :-
Gigantism and acromegaly are due to
What is true about 'Saheli??

$I$. Developed at $CDRI$, Lucknow

$II$. Contains a steroidal preparation

$III$. 'Once-a-week' pill

$IV$. Many side effects

$V$. High contraceptive value

$VI$. Very few side effects

$VII$. Low contraceptive value