Carnivorous Plant Adaptations: PTE Listening: Fill in the Blanks practice questions

The rapid closure of the venus flytrap represents one of the most movements in the botanical world. When an unsuspecting insect touches the sensitive trigger hairs on the leaf surface, a tiny electrical spreads across the tissue. If a second hair is stimulated within twenty seconds, the trap snaps shut immediately, preventing unnecessary of energy on false alarms. Once secured inside, the prey is digested by specialised that dissolve soft tissues and release essential directly into the plant.

Pitcher plants rely on a passive trapping that depends entirely on surface moisture. The rim of the pitcher contains microscopic that become extremely slippery when wet with nectar or rainwater. When insects step onto this lubricated margin, they lose their and tumble straight into the digestive liquid below. The internal walls are coated with flaky wax that prevent victims from climbing back out, ensuring the plant can steadily absorb nitrogen and from decaying matter.

Sundews have evolved an effective strategy using glandular tentacles that cover their leaves. Each tentacle produces a glistening drop of sticky that attracts insects searching for nectar or water. Upon contact, the insect becomes entangled, and its violent trigger surrounding hairs to bend inward, further the captive. The plant then begins secreting digestive fluids to break down the prey. This sophisticated method allows sundews to thrive in nutrient deficient such as bogs, where other vegetation struggles to adequate minerals.