'Low water potential' diaporamas de présentation

Intercellular Transport in Plants

Intercellular Transport in Plants. Page 828 - 851. So how do trees get water all the way to the top? e.g., > 100m !. Water potential = ?. ?? of pure water = 0 Measured in pascal or megapascal (MPa) force per unit area Auto tires and plumbing ~ 0.2 MPa

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Cell Structure & Function

Cell Structure & Function. Cell Theory. All living things are made up of cells. Cells are the smallest working units of all living things. All cells come from preexisting cells through cell division. . Definition of Cell.

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CHAPTER 38

CHAPTER 38. ANGIOSPERM REPRODUCTION AND BIOTECHNOLOGY. Male wasps transfer pollen to an Mediterranean orchid. I. Concept 38.1: Unique Features of the Angiosperm Life Cycle. A. Overview Diploid (2 n ) sporophytes produce spores by meiosis; these grow into haploid ( n ) gametophytes

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Transport through cell membranes

Transport through cell membranes. Transport through cell membranes. The phospholipid bilayer is a good barrier around cells, especially to water soluble molecules. However, for the cell to survive some materials need to be able to enter and leave the cell. There are 4 basic mechanisms:

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CHAPTER 38

CHAPTER 38. ANGIOSPERM REPRODUCTION AND BIOTECHNOLOGY. Male wasps transfer pollen to an Mediterranean orchid. I. Concept 38.1: Unique Features of the Angiosperm Life Cycle. A. Overview Diploid (2 n ) sporophytes produce spores by meiosis; these grow into haploid ( n ) gametophytes

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Chapter 36 Transport in Plants

Chapter 36 Transport in Plants. For vascular plants the evolutionary movement onto land involved the differentiation of the plant body into roots and shoots Vascular tissue transports nutrients throughout a plant; this transport may occur over long distances. Transport Scale/Distance.

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Diffusion/Osmosis/Water Potential

Diffusion/Osmosis/Water Potential. Lab. Directions. Read through the background information covered in the next few slides. This is essential knowledge to complete this assignment. Hand write (DO NOT TYPE) your answers to the questions. Be sure to separate questions by section. IE

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Transport in plants occurs across a network of vessels and over long distances

Transport in plants occurs across a network of vessels and over long distances. Lecture 6 Outline (Ch. 36 & 37). I. Plant Transport Overview Driving Forces Water potential Transpiration & Bulk Flow in Xylem Stomata Control Positive Pressure & Bulk Flow in Phloem III. Mineral Acquisition

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Transport Across The Membrane

Transport Across The Membrane. Osmosis. Objectives of unit:. Explain passive transport mechanisms of diffusion and facilitated diffusion, including the role of channel and carrier proteins Define the process of osmosis Explain the process of active transport and the role of proteins and ATP

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Types Cell transport across the cell membrane

Types Cell transport across the cell membrane. Cell Membrane structure . Phospholipid Bilayer Proteins (peripheral and integral) Carbohydrates . Functions of the cell membrane . Protective barrier that regulates transport in & out of cell ( selectively permeable)

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Terminology related to Plant Physiology & Biochemistry

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Diffusion Osmosis Lab

Diffusion Osmosis Lab. Osmosis. Osmosis = the movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane. Osmosis is considered in terms of water potential and solute potential. Water Potential.

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Parasitism and Symbiosis: isotope effects in mistletoe and foraminifera

Parasitism and Symbiosis: isotope effects in mistletoe and foraminifera. http://mmcconeghy.com/arizona/images/mistletoe.jpg. (Spero, 1998). Carbon isotope composition, gas exchange and heterotrophy in Australian mistletoes Marshall, Ehleringer, Schulze, and Farquhar, 1994.

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Agenda 9/27---Day 5

Agenda 9/27---Day 5. Take out water potential problems Take out enduring understanding work for check Notes if time. Calculating Water Potential. Things to remember! Water potential ( ? w) is the physical property predicting the direction in which water will flow

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Angiosperm Reproduction and biotechnology

Angiosperm Reproduction and biotechnology . Alex Grzadzielewski. The Importance of Pollination. Diploid plants are saprophytes , because they produce haploid spores by meiosis. GAMETOPHYTE DEVELOPMENT: Microspores are the haploid male gametophytes,

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Osmotic potential

Osmotic potential. Occurs in plant cells due to the cell wall (and fungi somewhat). The movement in and out of an animal cell is driven by the relative solute concentration gradient (after obeying the electrochemical gradient) Animal cells may swell, burst, or may crenate

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AP Bio Lab 1

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2.4.3 Osmosis

2.4.3 Osmosis. Osmosis . Movement of water molecules from a high concentrated area (dilute solution) to a low concentrated area (concentrated solution) through a semi permeable membrane. It is diffusion of water. Protein molecule. Water molecule. Semi permeable membrane. Outside the leaf.

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2.4.3 Osmosis

2.4.3 Osmosis. Osmosis . Movement of water molecules from a high concentrated area (dilute solution) to a low concentrated area (concentrated solution) through a semi permeable membrane. It is diffusion of water. Protein molecule. Water molecule. Semi permeable membrane. Outside the leaf.

187 views • 7 slides

Angiosperm Reproduction

Angiosperm Reproduction. Review: Plants are characterized by an alternation of generations. haploid (n) - gametophyte... reproduce sperm and eggs via mitosis. Fertilization results in a diploid zygote (grows into a sporophyte) diploid (2n) - sporophyte...

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