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14 Cards in this Set
- Front
- Back
What are the different structural adaptations plants evolved that allow them to live on land.
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cuticle reduces water loss; leaves carry out photosynthesis; roots anchor and absorb; vascular tissues transport materials; reproductive strategies that protect spores
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Explain why vascular plants are more likely to survive in a dry environment than nonvascular plants
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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
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List the sequence of events involved in the alternation of generations in land plants. Do all plants have alternation of generations?
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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.
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How do seeds and spores differ? What are the benefits of producing seeds?
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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.
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Explain how the development of the cuticle and the vascular system influenced the evolution of plants on land.
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A cuticle reduces water loss and a vascular system transports food, water, and minerals to all parts of the plant.
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Identify three characteristics that plants share with algae.
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They both have the same types of chlorophyll used in photosynthesis, cell walls that contain cellulose, and store food in the form of starch.
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protective, waxy coating on the outer surface of the of most stems and leaves; important adaptation in reducing water loss.
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Cuticle
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the plant organ that grows from a stem in which photosynthesis usually occurs.
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Leaf
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plant organ that absorbs water and minerals usually from soil; contains vascular tissues; anchors plant; can be a storage organ
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Root
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plants that have vascular tissues; enables taller growth and survival on land.
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Vascular Plant
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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.
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Stem
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tissues found in vascular plants composed of tubelike, long cells through which water, food, and other materials are transported throughout the plant
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Vascular Tissue
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plants that do not have vascular tissues; need to be closer to water to survive
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Non-Vascular Plants
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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.
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Seed
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