Plants: Diversity, Structure and Adaptations

What do vascular plants have that nonvascular plants do not?

• Xylem and Phloem

• Chloroplasts

• Stomata

• Pigments

What is the function of xylem in vascular plants?

• Carries sugar

• Absorbs light

• Produces oxygen

• Carries water

What are bryophytes informally known to include?

• Ferns and conifers

• Mosses, liverworts, and hornworts

• Lycophytes and monilophytes

• Gymnosperms and angiosperms

What does the word 'gymnosperm' mean?

• Broad leaf

• Enclosed seed

• Flowering seed

• Naked seed

How do nonvascular plants typically obtain water?

• Using guard cells

• Through their leaves

• By osmosis

• Through specialized roots

What percentage of all plants are estimated to be angiosperms?

• About 50%

• About 75%

• About 60%

• About 90%

What is the major role of stomata in plants?

• Gas exchange

• Sugar transport

• Water absorption

• Light capture

What do carnivorous plants like the Venus fly trap use to digest insects?

• Special enzymes

• Phloem

• Guard cells

• Chlorophyll

What is a major function of chloroplasts in plant cells?

• Water transport

• Nutrient absorption

• Gas exchange

• Photosynthesis

What adaptation helps mangrove trees live in waterlogged soil?

• Specialized roots

• Broad leaves

• Naked seeds

• Waxy leaf cuticles