Canrnivorous And Parasitic Plants Flashcards
How do bladderworts catch insects ?
Underwater ladders trap insects like lobster pots. The door of the bladder sits ready to be pushed closed when an insect runs into a set of fine hairs.
What happens after bladderworts trap an insect ?
Digestive enzymes found in the bladder break the insect down.
What are sundew plants known as ?
Fly paper traps
Describe the two types of hairs sundew have ?
The first type is fine hairs which have very sweet and sticky that trap insects. The other hairs contain digestive enzymes. Leaves roll up around the insect l.
What are the mobile hairs that some sundews have called and explain the pros and cons ?
Thigmatrophic. Better at catching prey but more energy intense.
How are the flowers specialised in sundews ?
They are far away from the trapping leaves and are non dangerous. This is so that insects are able to safely pollinate the plants
How do Venus fly traps trap plants ?
Traps are triggered by hairs on the rim, closing and trapping insects.
How do Venus fly traps ensure that they do not trap prey that is too small ?
Traps are triggered by a series of hairs rather than single hairs.
Why must the environment of pitcher plants be watery ?
Stomata are unable to close due to the energy expense of the traps, therefore in dry environments water loss would occur too easily.
Name two types of digestive enzymes found In The pitcher.
Proteases and phosphateases.
What is the function of caps on pitcher plants ?
Close during rainfall so as to not dilute the digestive liquid inside.
How are insects kept inside the pitcher ?
Downward facing hairs and sticky wax.
How are old world nepenthes different ?
The grow on vines as opposed to being rooted.
