NEET
Biology
Plant Kingdom
Question Bank
Self Evaluation Test - Plant Kingdom
question_answer
In some of the liverworts, there are special elongated cells called elaters that possess a helical thickening of the cell wall. As elaters lose water, they shrink longitudinally and compress the helical thickening like a spring. When the stress reaches a critical point, the compressed "spring" snaps back to its resting position, liberating hundreds of__ in all directions.