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Which one of the following statements is not true?
The flowers pollinated by flies and bats secrete foul odour to attract them.
Honey is made by bees by digesting pollen collected from flowers.
Pollen grains are rich in nutrients and they are used in the form of tablets and syrups.
Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.
Solution
(b) : Honey is made from nectar through a process of regurgitation and evaporation. Honeybees transform saccharides (carbohydrates) into honey by regurgitating it a number of times, until it is partially digested. The bees do the regurgitation and digestion as a group. After the last regurgitation, the aqueous solution is still high in water, the process continues by evaporation of much of the water and enzymatic transformation. Honey is produced by bees as a food source.
Similar Questions
Match the following:
| Column $- I$ | Column $- II$ |
| $(1)$ Germ pore | $(a)$ Lack of sporopollenin |
| $(2)$ Parthenium | $(b)$ Malva |
| $(3)$ Self incompatibility | $(c)$ Palms |
| $(d)$ Contaminant with important wheat |
Arrange correct pair
| Column $-I$ | Column $-II$ |
| $(1)$ Pollination by water | $(a)$ Grass |
| $(2)$ Pollination by wind | $(b)$ free-nuclear endosperm |
| $(3)$ coconut water | $(c)$ Guava |
| $(4)$ Fleshy fruit | $(d)$ Hydrilla |
| $(e)$ cellular endosperm |
