Plants: Presentation Two for Spaced LearningPresentation Transcript
PLANTS: A SPACED LEARNING LESSON2nd Presentation – Fill in the blanks!By: Andrea Kirk
NONVASCULAR PLANTS Nonvascular: These plants lack ________ _______to transport water and nutrients. They rely on simple diffusion to move water, and mustlive in a moist environment. ______________ grow very tall because they lackvascular tissue. Lack true ________, ________, and _________.Some have root-like structures called rhizoids Includes Mosses, ______________, and Hornworts
NONVASCULAR PLANTS Life Cycle: The __________________ is the dominantgeneration Does not utilize seeds, but uses wind blown___________ to disperse the offspring. _________________sperm requires water toreach and fertilize the egg; another reason whythey must live in a moist area.
SEEDLESS VASCULAR PLANTS
VASCULAR PLANTS Vascular plants have specialized structures: Roots, stems, and leaves Differentiated tissues: meristematic, ground,vascular, and dermal tissues. Can grow much _____________ than nonvascularplants due to their vascular structures. The life cycle has a dominant _________________generation, in contrast to the dominantgametophyte in nonvascular plants
TISSUES Vascular plants have _______________ tissuesthat perform separate but important functions. Meristematic Tissue: consists of cells that grow anddivide repeatedly. ________________ Tissue: these cells form thexylem and phloem that transport water and nutrients Ground Tissue: has cells that are rich in chloroplastsand conducts photosynthesis ________________ Tissue: these cells protect thevascular structures of the plant.
TISSUES IN VARIOUS PLANT PARTS???___________
MAIN PLANT PARTS Roots ____________ Leaves All of these parts contain dermal vascular and groundtissues.
THE ROOTS Functions: Anchoring Absorption __________________ Structure: Root Hairs – increase the surface area for moreabsorption Zone of Elongation Meristematic Zone – part of the root tip where cells____________________________to extend the root. Root Cap – _________________ the root tip
STEM Function: Connects the roots to the leaves andacts as the plumbing for the plant Structure: Xylem: ________ way Transports water and minerals upward Stiff, thick walls Phloem ________ way Transports products of _____________________ and waterup and down __________________walls
LEAVES Function: Capture the sunlight and are the mainarea of _____________________ for the plant. Structure: Leaf Margins:
LEAVES Leaf Types____________?
LEAF STRUCTURE Cuticle – waxy and water repellent. Excreted bythe epidermis _____________________ - outer layer of cells Palisade Mesophyll – elongated cells that containa lot of chlorophyll Spongy Mesophyll – Round irregular cells thatallow for _______ exchange Stoma – ___________ in the leaves for water andgas movement (more on the bottom of leaf) Guard Cells – “Guard” the stoma to open andclose it. Vein – contains the _________ and _________ forthe leaf.
SEED VASCULAR PLANTS Gymnosperms: Ginkgos, Gnetales, cycads, and____________ “____________ seeds” that are not enclosed ina protective structure. The ovule normallydevelops on the surface of a scale (cone) or atthe tip of a modified leaf. Conifers are the most abundant gymnospermsand include pine trees Life Cycle: The __________________ is thedominant portion of the life cycle.
SEED VASCULAR PLANTS Gymnosperms:
SEED VASCULAR PLANTSAngiosperms The ________ _________group of landplants. “________________ plants” - the ovuledevelops inside a protective ovary. Themature ovary becomes a fruit. Life Cycle: The sporophyte is dominant.______________ fertilization occurs toproduce an endosperm, the food supply,and a zygote.
SEED VASCULAR PLANTS Angiosperms
SEED VASCULAR PLANTS Angiosperms Two main divisions of flowering plants. _________________tyledon: Monocots One cotyledon (seed leaf) Flower parts in threes ___________ leaf veins Scattered vascular bundles Dicotyledon: Dicots _________ cotyledons Flower parts in fours and fives Net-like leaf veins Vascular bundles are arranged in a ring.
SEED VASCULAR PLANTS Seed structure
SEEDLESS VASCULAR PLANTS Include whisk ferns, ___________, clubmosses, and horsetails. Life Cycle: The sporophyte is dominant Use windblown _____________, not seeds, todisperse their offspring. The sperm is __________________ andrequires water to reach the egg. These plants are limited to__________________
SEEDLESS VASCULAR PLANTS
SEEDLESS VASCULAR PLANTS ____________ = cluster of sporangia that can belocated on the underside of a fern leaf. Sporangia = enclosure of ___________
BRAIN BREAK Pantomime!! The leader will act out an activity without speaking. The class will mimic the leader’s actions and attempt toguess what activity they are doing The winner is the next leader10 minutes