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SAM HOUSTON STATE UNIVERSITY / Engineering / Biol 1411 / What is the meaning of aerial parasite?

What is the meaning of aerial parasite?

What is the meaning of aerial parasite?


School: Sam Houston State University
Department: Engineering
Course: Intro to Botany
Professor: Christopher randle
Term: Spring 2017
Tags: botany
Cost: 50
Name: Botany Exam Study Guide Part 1
Description: Botany Exam Study Guide Part 1
Uploaded: 10/11/2017
4 Pages 34 Views 2 Unlocks

 Botany Exam 2 Study Guide

What is the meaning of aerial parasite?


Abscission: the natural detachment of parts of a plant, typically dead leaves and ripe fruit.  Aerial Parasite: Seed germination takes place on the stem of the would be host  Aerial Roots: A root growing from an aboveground portion of a plant  Bark: the outermost layers of stems and roots of woody plants.  

Bracts: floral leaves that form at the base of a flower or flower stalk. Small and scalelike,  and protect developing flowers.  

Bud Primordium: organ or tissue in its earliest recognizable stage of development  Bundle Sheath: a cylinder of collenchyma and parenchyma cells that surrounds vascular  bundles in leaves, loading nutrients into phloem and providing structural integrity  Buttress Roots: A root often found in tropical rainforest trees that serves primarily  Casparian Strip: is a band of cell wall material deposited in walls of the endodermis, and is  made of suberin and sometimes lignin.  

What is the meaning of aerial roots?

Compound Leaf: A leaf composed of multiple leaflike structures called leaflets  Compound Leaves: a leaf of a plant consisting of several or many leaflets  Cork Cambium: is a tissue found in many vascular plants as part of the epidermis.  Responsible for secondary growth that replaces the epidermis in roots and stems.  Endodermis: an inner layer of cells in the cortex of a root and stems  

Fusiform Initial: Cells in the vascular cambium. Football shaped.  

Haustorium: A root that invades the tissue of another plant and draws off nutrients  Hemiparasitic: a plant that obtains or may obtain part of its food by parasitism, e.g.,  mistletoe, which also photosynthesizes.  If you want to learn more check out What are the examples of governmental agencies?

Heterotrophs: an organism that makes its own food  

What is the meaning of bracts?

Holoparasitic: Of or pertaining to a plant sustaining itself entirely through parasitism.

 Botany Exam 2 Study Guide Leaf Primordium: a group of cells that will develop into a leaf, seen as small bulges just  

below the shoot apex.  

Leaf Trace: the point at which vascular bundles branch in the stem to enter the petiole of  the leaf  

Leaf: A structure that subtends an axillary bud  

Lenticles: Pores that allow gas exchange between the environment and internal tissues  Mycorrhizae: symbiotic relationships that form between fungi and plants. The fungi colonize  the root system of a host plant, providing increased water and nutrient absorption  capabilities while the plant provides the fungus with carbohydrates formed from  photosynthesis.  Don't forget about the age old question of What is the meaning of the fight-or-flight system?

Palisade Parenchyma: a layer of tightly packed chlorenchyma cells on the upper surface of  a leaf largely responsible for photosynthesis  

Parasitism: the practice of living as a parasite in or on another organism.  Pneumatophores: A root that is modified to obtain oxygen above the surface of stagnant  water  

Ray Initial: In the Vascular cambium that produce vascular rays  

Rhizome: a continuously growing horizontal underground stem that puts out lateral shoots  and adventitious roots at intervals.  

Root Parasite: a complete parasite attaches to the roots  

Spines: a hard pointed defensive projection used as protecting the plant  Storage Roots: A root in which nutrients are stored  We also discuss several other topics like How long is female dog receptive to male?

Tannin: pigment that is responsible for leaves changing colors in the fall  Tendrils: a slender threadlike appendage of a climbing plant, that grows and “climbs” to  support and grow closer to light or nutrients  

Thorne: any hard pointed defensive projection or structure

 Botany Exam 2 Study Guide Transpiration: evaporation of water from the stomates of leaves; results in negative pressure  

in the xylem which draws water upward  

Tubers: a much thickened underground part of a stem that serves as a food reserve and  bearing buds from which new plants arise.  If you want to learn more check out Why can't utopians exist?

Vascular Cambium: Tissue located between the Xylem and Phloem in the stem and root of a  vascular plant. Source of secondary growth.  

Window Leaves: are common in many desert plants, a small transparent "window" tip  protruding above the soil level.  


Root Growth in Different Climates  

• The Desert � (little precipitation, no water table, variable soils)  We also discuss several other topics like What is the smallest group of organisms in which evolution can take place?

- Root systems are larger, wider and deeper  

- Able to maximize gathering moisture when scarce  If you want to learn more check out What energy is available for cellular work?

• The Beach � (thin shifting soils, variable precipitation)

- Long taproots to stabilize position in unstable soils.

• A Tropical Rainforest � (lots of precipitation, thin soils)

- Wide, woody root systems

- competition for sunlight  

Types of Roots  

• Aerial Roots �

- roots that arise on above-ground stems

- Ex: prop roots on corn, vines, epiphytes, Banyan tree

• Buttress Roots �

- flared roots that extend from tree trunks, used for stability.

• Pneumatophores �

- provide oxygen for plants in areas where oxygen levels are low

- Ex: Swamps  

• Storage roots �

- roots modified to store water or food

Parasitic Plants  

- Parasitism: the practice of living as a parasite in or on another organism

– invasive, vascular organ that secretes digestive enzymes  

– Attaches to host stems or roots

– anatomically diverse structures

– movement of nutrients from host to parasite is passive

 Botany Exam 2 Study Guide

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