AP BIOLOGY

PLANTS

THE LEAF

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
THE EDGES OF A LEAF OF THE ____ PLANT HAVE LONG AND POINTED HAIR.
A
VENUS FLYTRAP
B
PITCHER
C
BLADDERWORT
Explanation: 

Detailed explanation-1: -The “mouth” of a Venus flytrap (Dionaea muscipula) bears several trigger hairs, multicellular spikes that send electrical impulses across the lobes of the trap when bent by contact with an object.

Detailed explanation-2: -It grows in a circular cluster which measures about 15cm (6 inches) across when fully developed. Each leaf in the cluster can grow up to 7 or 8 cm (about 3 inches) in length. At the end of each leaf is a deadly trap for insects!

Detailed explanation-3: -The Venus flytrap is a flowering plant best known for its carnivorous eating habits. 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.

Detailed explanation-4: -The Venus fly trap has two leaves that are hinged at the base. Each leaf has small hairs on the surface that trigger the plant to close when they are touched. When an insect lands on the plant’s leaves, they are slowly drawn inward by tiny hairs.

There is 1 question to complete.