Nagy Bio Ii - Chp. 24 Test

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BIOLOGY II
Mr. Nagy
Chapter 24 Multiple choice

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Cut apart and study

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Plants have a waxy layer to reduce water loss, and it covers the nonwoody above ground parts. What is this waxy layer called?

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a cuticle

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In vascular plants, the dominant generation is

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sporophyte

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Seeds provide the offspring of plants with all of the following survival advantages:

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1) dispersal
2) nourishment
3) delayed growth

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The sporophytes of most vascular plants are characterized by all of the following:

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1) xylem and phloem
2) a shoot
3) leaves

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Nearly all gymnosperms produce gametophytes that develop

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in cones

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The phylum containing the most successful gymnosperms is

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coniferophyta

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Plants in phylum Sphenophyta that have joined vertical stems and whorls of scalelike leaves are called

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horsetails

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The following are important sources of starch

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1) root crops
2) cassava
3) potatoes

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What is rayon made from?

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wood pulp

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What drug is used to treat Hodgkin's disease, the drug is obtained from the rosy periwinkle and is called?

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vinblastine

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The stems of flax yield a soft, durable fiber that is used to make what?

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linen

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mycorrhizae

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the symbiotic relationships between fungi and the roots of plants

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stomata

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pores that extend through the cuticle and permit plants to exchange oxygen and carbon dioxide

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flower

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a reproductive structure that produces pollen and seeds

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sporophyte

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the dominant stage in the life cycle of vascular plants

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gametophyte

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the dominant stage in the life cycle of nonvascular plants

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xylem

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sporophyte vascular tissue that contains hard-walled, water-conducting cells

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phloem

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sporophyte vascular tissue that contains soft-walled, sugar-conducting cells

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seedless vascular plants

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a group of plants that have a vascular system, a large sporophyte, and drought-resistant spores

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bryophyta

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plant phylum that includes tree mosses

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legumes

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plants of the pea family that produce protein-rich seeds in long pods

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grain

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edible dry fruit of a cereal grass

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salicin

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a pain-relieving chemical found in willow tree bark

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What do botanists think may have helped early land plants obtain nutrients from the Earth's rockky surface?

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fungi

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What type of specialized cells change shape, stomata open and close?

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guard cells

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What part of the plant's body grows mostly upward?

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shoot

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What part of the plant's body grows downward?

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root

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In nonvascular plants, what are the smaller, nongreen parts?

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sporophytes

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What do sporophytes depend on?

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gameteophytes

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What are the coiled young leaves called in plants in the phylum Pterophta called?

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fiddleheads

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What produces spores on the lower side of fronds?

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sporangia

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What is the name of the oldest trees in the world?

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bristle core pine

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What is the name of the most successful gymnosperms?

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conifers

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What part of a plant contains seeds?

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fruit

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What is the vegetative part do?

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it is the nonreproductive part of a plant

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What are the most important nonfood products obtained from plants?

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weed and fibers

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What consumes about 70 percents of the U.S. corn crop?

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livestock

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What are paper-making fibers obtained from?
wood, cotton, flax, rice, and

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bamboo, and papyrus

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What are the 3 key features of angiosperms, and their functions?

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1) flowers 2) fruits 3) endosperm
look in the text for their functions

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What is the genetic difference between the gametophyte and the sporophyte?

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game is haploit
while spore is diploid

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What is the fundamental difference between vascular and nonvascular plants?

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vascular - xylemiphloem is bigger
non-vascular - no xlemyphoem is much smaller

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What four ways have seeds influenced the evolution of plants on land?

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1) protection 2) nourishment 3) dispersal
4) delayed growth

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describe the two types of angiosperms and list two examples of each:

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check your notes and text

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What carried the pollen of the first seed plants before there were flowers?

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wind