Dragline Spider-Silk: Biomimicry and Properties AI

What is the main use of silk for spiders?

• For decoration

• Building nests, catching prey, and protecting offspring

• Making clothes

• Cooking

Which gland produces dragline silk in orbweavers?

• Flagelliform gland

• Aciniform gland

• Major ampulet gland

• Minor ampulet gland

What is the tensile strength of silkworm silk?

• 387 megajoules per meter cubed

• 100 megapascals

• Over 500 megapascals

• Over 1200 megapascals

Tags

NGSS.HS-PS2-6

How many different types of silk glands do orb-weaving spiders have?

• Seven

• Five

• Nine

• Three

What is the strength to weight ratio of spider silk compared to?

• Steel and Kevlar

• Wool

• Cotton

• Nylon

What makes farming spiders for silk difficult?

• They don't produce enough silk

• Their silk is not valuable

• They are too small

• Their territorial and cannibalistic nature

What are the main amino acids that make up dragline silk?

• Cysteine, methionine, phenylalanine, and tyrosine

• Lysine, arginine, histidine, and aspartic acid

• Glycine, alanine, proline, and glutamine

• Serine, threonine, leucine, and isoleucine

What structure in spider silk contributes to its strength?

• Polyproline helices

• Alpha helices

• Random coils

• Beta sheets

What is the estimated cost per kilogram for the pseudoprotein polymer that mimics spider silk?

• $300

• $100

• $10

• $500

Tags

NGSS.HS-ESS3-2

Why have genetic attempts to replicate spider silk not fully succeeded?

• Spiders are extinct

• Silk is not useful

• Lack of interest in research

• Problems with properly folding the protein