Botany General Knowledge Questions and Answers

25. The unicellular alga used to supply and regulate the oxygen in space programmes is
  A.  Spirogyra
  B.  Chlorella
  C.  Ulothrix
  D.  Odagonium
Answer
Ans: B
Chlorella
26. The hotness or pungency of chili pepper is due to
  A.  Cucumin
  B.  Capsaicin
  C.  Sorbitol
  D.  Argenol
Answer
Ans: B
Capsaicin
27. The photosynthesis occurs in the
  A.  Day
  B.  Night
  C.  Day and Night
  D.  None of these
Answer
Ans: A
Day
28. Which part of the pear is edible?
  A.  Fleshy thalamus
  B.  Spores
  C.  Endosperm
  D.  Mesocarp
Answer
Ans: A
Fleshy thalamus
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