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Chemistry LibreTexts

7.1 Unit 7 Exam

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    cc_profilecc.multiple_choice.v0p1Green algae are part of the Kingdom Protista. What is the main difference between plants and most green algae?Plants contain chlorophyll.Plants are all unicellular.Plants are all multicellular.Plants are adapted to life in the water.3100cc_profilecc.multiple_choice.v0p1Why are most plants and some algae green?They contain chlorophyll.They contain starch.They contain cellulose.They contain carbohydrates.5100cc_profilecc.multiple_choice.v0p1The first true plants were probably most similar to modernferns.mosses.conifers.flowering plants.10100cc_profilecc.multiple_choice.v0p1Seed plants do not rely on standing water to reproduce. They rely onprotective coats.vascular systems.pollination.embryos.15100cc_profilecc.multiple_choice.v0p1Pollination occurs when pollen meetsmale reproductive parts of a different plant species.male reproductive parts of the same plant species.female reproductive parts of a different plant species.female reproductive parts of the same plant species.20100cc_profilecc.multiple_choice.v0p1Fleshy fruits often play a role in seed dispersal when they areblown by the wind.carried by insects.eaten and discarded by animals.washed away by water.23100cc_profilecc.multiple_choice.v0p1The strongest plant cells areparenchyma cells.collenchyma cells.sclerenchyma cells.dermal cells.27100cc_profilecc.multiple_choice.v0p1The function of the vascular tissue is tosecrete a substance that becomes the cuticle.cover the outside of a plant and protect it.provide support and supply materials.transport water and nutrients to all parts of the plant.32100cc_profilecc.multiple_choice.v0p1Transpiration lowers the pressure in the leaf xylem, creating a vacuum thatforces water out of leaves.pulls water upward.attracts water to the xylem wall.moves water into the phloem.34100cc_profilecc.multiple_choice.v0p1Roots absorb water partly through tiny extensions of dermal cells calledlateral meristems.apical meristems.vascular cylinders.root hairs.40100cc_profilecc.multiple_choice.v0p1The functions of plant stems include providing support, transporting water and materials, andtaking up water from soil.forming a vascular cylinder.storing food and water.exchanging gases.43100cc_profilecc.multiple_choice.v0p1Which leaf adaptations occur to minimize water loss in both deserts and cold dry climates?plump leaves that store waterlarge and broad leavesneedles and spinescompound and double compound leaves47100cc_profilecc.multiple_choice.v0p1The upper surfaces of leaves are used mainly forlight gathering.gas exchange.collecting from predators.49100cc_profilecc.multiple_choice.v0p1Seedless plants disperse to new areas usingcones.gametes.capsules.spores.56100cc_profilecc.multiple_choice.v0p1Colorful fragrant flowers are most likely pollinated byanimals.wind.spores.water.57100cc_profilecc.multiple_choice.v0p1In double fertilization, one sperm fertilizes an egg and the other forms ahaploid cell.diplod cell.triploid cell.polar cell.63100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>What is the function of the vascular system?</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Describe lignin and its function.</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Describe what happens during the sporophyte phase of a plant life cycle.</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Compare a tap root system with a rigrous root system. For each type, name a plant that provides a food in the human diet. Which type of root system is found in monocots? Which type of root system is found in dicots?</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Why do wind-pollinated plant species generally produce more pollen than animal-pollinated species?</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Would brightly colored flowers and sweet, juicy fruits have been as beneficial to the earliest land plants as they are to modern flowering plants? Explain.</p>100