#platofam which is the rigid molecule composing plant cell walls? a.) starch b.) glycogen c.) hemoglobin d.) cellulose

D.) cellulose. I hoped this helped.

Hey Brainiac, thanks for asking a question here on

Cellulose is a rigid molecule composing plant cell walls.

Letter D ✅

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or post another question and send the link to me. -UnicornFudge aka Nadia 

Work done = force ×distancebut force = mass ×gravityand gravity = 10m\s force = 2×10 = 20 work done = 20×3 = 60 joules