Question

Production of the lignin molecule in xylem cells is an adaptation that gives vascular plants the ability to

a. transport sugars produced in photosynthesis.

b. grow tall and form branches.

c. reduce water loss to the atmosphere.

d. promote active transport pumping of water and nutrients
in each cell.

e. All of the answer choices are correct.

Answer 1

The production of lignin in xylem cells is an adaptation that helps vascular plants reduce water loss, grow tall, and form branches.

Step-by-step explanation:

The production of the lignin molecule in xylem cells is an adaptation that gives vascular plants the ability to reduce water loss to the atmosphere. Lignin is a tough carbohydrate molecule that makes the xylem cells waterproof and helps prevent the seepage of water across the xylem cell walls. With their rigid cell walls, the xylem cells provide support to the plant and allow it to grow tall and form branches. By growing taller than other plants, tall trees can access unfiltered sunlight and outcompete shorter plants for water and nutrients in the soil.