Which one yields fibre ?
Coconut
Oak
Teak
Sissoo
Which of the following meristems is responsible for extrastelar secondary growth in dicotyledonous stem ?
infrafascicular cambium
intrerfascicular cambium
Intercalary meristem
Phellogen
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
absence of secondary xylem
absence of secondary phloem
presence of cortex
position of protoxylem
Organization of stem apex into corpus and tunica is determined mainly by
planes of cell division
regions of meristematic activity
rate of cell growth
rate of shoot tip growth
Tunica corpus theory is connected with
root apex
root cap
shoot apex
secondary growth
Angular collenchyma occurs in
Cucurbita
Tagetes
Althaea
Salvia
Palisade parenchyma is absent in leaves of
Sorghum
mustard
soybean
gram
Commercial cork is obtained from
Berberis/Barberry
Salix/Willow
Quercus/Oak
Betula/Birch
Bananas can be prevented from over ripening by
maintaining them at room temperature
refrigeration
dipping in ascorbic acid solution
storing in a freezer
Bordered pits are found in
sieve cells
vessel wall
companion cells
sieve tube wall
