Q.Explain the insectivorous mode of nutrition in angiosperms?

Step 1. Insectivorous (carnivorous) plants are angiosperms that grow in nitrogen-deficient habitats, such as bogs and marshes, where the soil cannot supply enough nitrogen through ordinary root uptake, so they have evolved modified leaves that trap and digest insects to make up the shortfall.

Step 2. In Nepenthes, the pitcher plant, an entire leaf is modified into a pitcher-shaped trap containing digestive enzymes; nectar glands around the rim act as an attractive lid, and once an insect is trapped inside, proteolytic enzymes digest it, releasing nitrogen the plant can absorb.

Step 3. In Drosera, the sundew, the leaf carries numerous long, club-shaped tentacles that secrete a sticky digestive fluid; insects landing on the leaf are held fast by this fluid and then digested.

Step 4. In Utricularia, the bladderwort, a submerged aquatic plant, a leaf is modified into a hollow bladder that sucks in and traps small aquatic prey when triggered. …

List each of the four insectivorous genera with its specific leaf modif …

• Mixing up which plant uses a sticky-tentacle trap (Drosera) versus a hinged snap trap (Dionaea). …