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Structure of Plants

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Structure of Plants - Page Text Content

S: SUMMER 2011


FC: Structure of Plants

1: Nonvascular Plants!

2: Nonvascular plants do not have a vascular system for transporting glucose. | Key features: small size, found near streams, coast lines, and other places, requires water for sexual reproduction. | Examples: mosses, liverworts, and hornworts.

3: Seedless Vascular Plants | They are vascular plants that do not produce seeds. Key features: Drier habitats on land, drought resistant spores, when enough water the sperm swims to egg to fertilize. Examples: Club mosses, Horetails, and whisk ferns.

4: Gymnosperm | They are seed plants whose seeds do not develop within a sealed container (a fruit). Key features- seeds, spreads sperm through wind, lives on land and does not need to be near a water source. Examples: conifers, cycads, and ginkgo.

5: Angiosperms | Its a flowering plant. Monocots- Are flowering plants that produce seeds with one seed leaf (cotyledon). Dicots- Are flowering plants that produce seeds with two leaves. Key features: fruit protect seeds, reproduce through pollination, lives on land. Examples: Iris, lily, and rose.

6: The movement of all or part of an organism in response to an external stimulus. | Tropism

7: Response of a plant to the length of days and nights. | Phototropism | Gravitropism | Response to gravity

8: Response to touch. | Angiosperms

9: Cell Wall | the cell wall of a plant composed of? proteins and carbohydrats including the polysccharide. | the function of the cell wall? helps support and maintain the shape of cells, protects the cell from damage, and connects it with adjacent cells.

10: Central Vacuole | The central vacuole and what is its function? Central vacuole is a large, membrane-bound space and it stores water and may contain many substances including ions, nutrients, and waste. The functions are when the central vacuole is full it makes the cell rigid. This rigidity enables a plant to stand upright.

11: Flowers | What type of plants produce flowers? Nonvascular plant, and angiosperms. | What is sepal and what is it function? The sepal in a flower, one of the outermost rings of modified leaves that protect the flower bud. | What are petal and what is their functions? The petal one of the rings or rings, of the usually brightly colored, leaf part shaped of a flower.

12: Stamen is the male reproductive structure of a flower that produce pollen and consists of an another at the tip of a filament. | What are the two parts of stamen and what is each of their function?

13: Is a stamen a male or female reproductive organ? Male Reproductive | What are the three parts of the pistil and what is each of their function? Stigma, Style, and Ovary | Is a pistil a male or female reproductive organ? Female reproductive


15: What is a function of roots?? | Absorption of water and inorganic nutrients, anchoring of the plant bady to the ground, storage of food and nutirnts, and to prevent soil erosion.

16: What is the difference between a taproot and a fibrous root system? | Tap roots have one whole root and have only root hair on them. But fibrous roots have many roots and spread across the underground. | Examples of taproot: Dandelions, Radishes, Beets, and Carrots. | Examples of Fibrous: Lettuce, Marigolds, Grass, Palm trees.


18: What is the function of a stem? | Hold together the rest of the plant, Lifts the leaves up where they can get good sun, Moves food and water from place to place in the plant, Protect the plant (thorny stem), May store important chemicals and nutrients.

19: Examples of stems: Garlic, Broccoli, Fig.

20: Monocots | Embryo with single cotyledon Pollen with single furrow or pore Flower parts in multiples of three Major leaf veins parallel Stem vascular bundles scattered Roots are adventitious Secondary growth absent

21: Dicots | Embryo with two cotyledons Pollen with three furrows or pores flowers part in multiples of four or five Major leave veins reticulated Stem vascular bundles in a ring Roots develop from radicle Secondary growth often present

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