AP BIOLOGY

PLANTS

THE LEAF

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In which plant The leaf blade is divided into two parts and the midrib acts as a hinge
A
Opuntia
B
Venus Flytrap
C
Bladderwort
Explanation: 

Detailed explanation-1: -The Venus flytrap (Dionaea muscipula) produces leaves that look hinged at the midrib.

Detailed explanation-2: -Sundews (Drosera) Like Venus Flytraps, sundews are found in humid tropical environments. If your child already has a Venus Flytrap, they can start a Sundew terrarium to add to their carnivorous plant collection!

Detailed explanation-3: -The “trap” is made of two hinged lobes at the end of each leaf. On the inner surfaces of the lobes are hair-like projections called trichomes that cause the lobes to snap shut when prey comes in contact with them. This type of movement is called thigmonasty-a nondirectional plant response to being touched.

Detailed explanation-4: -The Venus flytrap has evolved one of the quickest movements ever seen in a plant in order to catch its prey, which it then digests using a cocktail of enzymes. After sealing an insect inside the snap-trap, the plant will emit digestive enzymes from specialised glands to dissolve its tough outer exoskeleton.

Detailed explanation-5: -The plant originally was called Venus’s flytrap, named for the Roman goddess of love. Its first known reference came in a letter from North Carolina colonial governor Arthur Dobbs to English botanist Peter Collinson dated April 2, 1759.

There is 1 question to complete.