
Social Function: To explain the processes involved in the formation or working of natural or sociocultural phenomena.
Generic Structure
- A general statement to position the reader
- A sequenced explanation of why or how something occurs.
- Focus on generic, non-human Participants
- Use mainly of Material Processes and Relational Processes
- Use mainly of Temporal and causal Circumstances and Conjunctions
Venus FlyTrap
At the end of each leaf – which grows from the base of a long, flowering stalk – there is a trap. The trap is made up of two lobes and is covered with short, reddish hairs which are sensitive. There are teeth like structures around the edge of the lobes.
The trap contains nectar which attracts insect. When an insect comes in contact with the nectar, the trap snaps shut. There are certain digestive juice inside the trap which digest the insect. It takes about ten days for a trapped insect to be digested. We can tell when this digestion is complete, for then the walls automatically open to wait for another victim.
There are two hundred species of carnivorous plants. Another kind of these well- known species is the pitcher plant. What differentiates this plant from the Venus’s fly trap is the shape; the mechanism to catch insects is the same in both plants.
The pitcher plants which cling to other plants by means of tendrils. At one end of the tendril, there is a pitcher –shaped vessel with an open lid. The mouth and the lid of the pitcher contain glands which produce nectar to attract insect. When an insect settles on the nectar, the lid of the pitcher shuts, trapping its victim. The digestive juices inside the pitcher then begin to work.
The Venus Flytrap prefers tropical weather and so it is found in places like South America. It is often used by people to catch the annoying insects that fly around their houses.
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