The Mimosa pudica, commonly known as the "touch-me-not" or "sensitive plant," demonstrates how plants can respond rapidly to stimuli without having a nervous system. When touched, its leaves fold instantly and the petioles droop - a remarkable display of plant coordination.
đŦ Response Mechanism
Touch triggers electrical signals in cells
Water rapidly moves out of pulvinus cells
Loss of turgor pressure causes folding
Chemical signals coordinate the response
Nature's Marvel!
Mimosa leaves can close in just 0.1 seconds - faster than you can blink! This helps protect the plant from herbivores and harsh conditions.
đ¯ Learning Objectives
Discover how plants coordinate rapid responses using electrical and chemical signals, water movement, and cellular changes instead of nerves.