Botany General Knowledge Questions and Answers

21. Which of the following organelles of a cell is involved in photosynthesis?
  A.  Golgi bodies
  B.  Endoplasmic reticulum
  C.  Mitochondria
  D.  Chloroplast
Answer
Ans: D
Chloroplast
22. Plants which grow on rocks are known as
  A.  Mesophytes
  B.  Lithophytes
  C.  Sclerophytes
  D.  Oxylophytes
Answer
Ans: B
Lithophytes
23. The age of trees is estimated by
  A.  Their heights
  B.  Counting the number of annual rings
  C.  Their weights
  D.  Their elongation of roots
Answer
Ans: B
Counting the number of annual rings
24. Chilgoza is obtained from
  A.  Pinus
  B.  Cycus
  C.  Ginkgo
  D.  Sellaginella
Answer
Ans: A
Pinus
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