Advertisements
Advertisements
Question
Answer the following question.
Opuntia has spines but Carissa has thorns. What is the difference?
Advertisements
Solution
- In Opuntia, stem is modified into leaf like photosynthetic organ known as phylloclade.
- Spines growing on phylloclade of Opuntia are leaves, modified to reduce the loss of water through transpiration.
- Thorns in Carissa are modified apical buds. They provide protection against browsing animals.
- Thus, spines in Opuntia and thorns in Carissa have different origin and function.
APPEARS IN
RELATED QUESTIONS
Write a short note on fusiform root.
Write a short note on Racemose inflorescence.
Write a short note on Cymose inflorescence.
Write a short note on axile placentation.
Students were on an excursion to a botanical garden. They noted the following observation. Will you be able to help them in understanding those conditions?
A wiry outgrowth was seen on a plant arising from in between the leaf and stem.
Students were on the excursion to a botanical garden. They noted following observation. Will you be able to help them in understanding those condition?
Many plants in the marshy region had upwardly growing roots. They could be better seen during low tide.
Students were on an excursion to a botanical garden. They noted the following observation. Will you be able to help them in understanding those condition?
A plant was found growing on other plant. Teacher said it is not a parasite. It exhibited two types of roots.
Students were on the excursion to a botanical garden. They noted following observation. Will you be able to help them in understanding those condition?
Students cut open a Papaya fruit and found all the seeds attached to the sides. Teacher inquired about the possible placentation of Papaya ovary.
Differentiate with a diagrammatic representation Tap root and Adventitious roots.
Flippers of penguin and dolphins is an example of ______.
