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14 Cards in this Set

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  • Back
What are the different structural adaptations plants evolved that allow them to live on land.
cuticle reduces water loss; leaves carry out photosynthesis; roots anchor and absorb; vascular tissues transport materials; reproductive strategies that protect spores
Explain why vascular plants are more likely to survive in a dry environment than nonvascular plants
Vascular plants have tubelike tissues that transport water and nutrients, whereas nonvascular plants use osmosis and diffusion, which requires them to be close to water
List the sequence of events involved in the alternation of generations in land plants. Do all plants have alternation of generations?
Sporophytes form spores via meiosis, spores form gametophytes that form gametes via mitosis, gametes fuse to form a new sporophyte. Yes, all land plants have alternation of generations.
How do seeds and spores differ? What are the benefits of producing seeds?
Seeds have a protective coat and contain a diploid embryo. Spores are a single haploid cell with a hard, outer wall. Seeds protect an embryo from drying out and aid in dispersal.
Explain how the development of the cuticle and the vascular system influenced the evolution of plants on land.
A cuticle reduces water loss and a vascular system transports food, water, and minerals to all parts of the plant.
Identify three characteristics that plants share with algae.
They both have the same types of chlorophyll used in photosynthesis, cell walls that contain cellulose, and store food in the form of starch.
protective, waxy coating on the outer surface of the of most stems and leaves; important adaptation in reducing water loss.
the plant organ that grows from a stem in which photosynthesis usually occurs.
plant organ that absorbs water and minerals usually from soil; contains vascular tissues; anchors plant; can be a storage organ
plants that have vascular tissues; enables taller growth and survival on land.
Vascular Plant
plant organ that provides support and growth; contains tissues that transport food, water, and other materials; organ from which leaves grow. Can serve as a food storage organ; green stems can carry out photosynthesis.
tissues found in vascular plants composed of tubelike, long cells through which water, food, and other materials are transported throughout the plant
Vascular Tissue
plants that do not have vascular tissues; need to be closer to water to survive
Non-Vascular Plants
a plant organ of seed plants consisting of an embryo, a food supply, and a protective coat; protects the embryo from drying out and also can aid in dispersal.