Study Guide Exam 3-1 - Study Guide Exam III Lecture 13...

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Study Guide Exam IIILecture 13 (Chapter 35)- plant structureHow are plant cells like all other cells?Nucleus (nuclear envelope, nucleolus, chromatin); ER's; Centrosomes, golgi,mitochondria; peroxisome; membranes, ribosomes, cytoskeletonsHow are plant cells different from all other cells?Have: chloroplasts, central vacuoles and tonoplast, and plasmodesmata. Don't have:lysosomes, centrioles or flagella.What are the three basic parts of higher plants?Roots, stems leavesWhat are characteristics of angiosperms?Dicots?Monocots?What are various things that roots do?Anchors vascular plants, absorb minerals and water and store organic nutrients. Eudicotsand gymnosperm have taproot system. Modified roots: prop, storage, stranglingaerial, buttress, pneumatophores.What are the various parts of the shoot?Nodes – points of leaf attachments; internodes: stem segments between nodes; axillarybuds: can form lateral shoots; terminal bud: developing leaves and compact seriesof nodes and internodes.What are some modifications of shoots?Stolongs (runners, asexual reproduciton); bulbs ( underground shoots made of bases ofleaves used for storage); tubers (enlarged ends of rhizomes for storage; eyes areaxillary buds making nodes); rhizomes (horizontal stem below surface; is noded)What are the parts of a leaf?Tendrils, splines, storage leaves, bracts (bright, surround flowers), reproductive leavesWhat are some modified leaf functions?Support, protection, storage, attractions, reproductionWhat are the three plant tissues?Dermal, ground, vascularWhat is vascular tissue?Carry out ling distance transport of materials between shoots and leavesWhat is phloem?Transport organic nutrients such as sugars to growth sitesWhat are phloem cells?Seive tube members: living cells w/o nucleus, ribosomes or vacuole with perforated endwalls allowing for transport of nutrients across cell. Companion cell connected bypasmodesmata has missing organells to support seive tube members and help loadsugars.What does phloem do?Organic nuctrient transport.1
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What is xylem?Tubolar elongated cells dead at maturity that transport water from roots to leavesWhat are xylem cells?Tracheids: tapered ends, water moves through pits without secondary walls. Secondarywalls have lignin for support.Vessels: shorter, thinnerwalls and not as tapered. Arranged end to end forming pipes.What does xylem do?Water transport.What is a protoplast?Cell without cell wall.What does the plant cell wall do?Protects and supports.What are plasmodesmata?Perforations in cell wall allowing nutrient exchange.Where do shoots and roots grow?Shoots – aprical meristems and lateral meristems (vascular and cork cambiums)What are buds?What are meristems?Perpetually embryonic tissues.Where are meristems located?What do leaf and bud scars on twigs indicate?What is primary growth?What is secondary growth?What are the various structures found near a root tip?SteleApical meristemProcambiumProtodermGround meristemWhat is a root hair?

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Term
Spring
Professor
shen
Tags
Membranes, Nucleolus, Plant Cell, phloem, Xylem
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Biology: The Dynamic Science
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Chapter 34 / Exercise 1
Biology: The Dynamic Science
Hertz/Russell
Expert Verified

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