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Author: Benjamin Lowenhaupt
Publisher:
ISBN:
Category : Aquatic plants
Languages : en
Pages : 18
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Book Description
Author: Benjamin Lowenhaupt
Publisher:
ISBN:
Category : Aquatic plants
Languages : en
Pages : 18
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Book Description
Author: Benjamin Lowenhaupt
Publisher:
ISBN:
Category : Aquatic plants
Languages : en
Pages : 20
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Benjamin Lowenhaupt
Publisher:
ISBN:
Category : Aquatic plants
Languages : en
Pages : 42
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Author: Arthur M. Jungreis
Publisher: Elsevier
ISBN: 1483273873
Category : Science
Languages : en
Pages : 408
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Book Description
Water Relations in Membrane Transport in Plants and Animals contains the presentations in a symposium dealing with Water Relations in Membranes in Plants and Animals, during the 27th Annual Fall Meeting of the American Physiological Society held at The University of Pennsylvania, 17-19 August 1976. The purpose of the symposium was to explore the common modes of water regulation in plants and animals. In these proceedings, the mechanisms employed to restrict water flow across plant and metazoan animal cells are described. Putative differences in mechanisms of water regulation retained by plant versus animal cells become inconsequential in the light of the numerous similarities: dependence upon bioelectric potentials maintained across cell membranes, energy dependence of uphill water movement, and solute coupling during water transport. The presentations can be organized into four. The first takes up specific mechanisms of water transport in plants. The second and third parts deal with specific mechanisms in invertebrates and vertebrates, respectively. The fourth part covers generalized mechanisms common to plants and animals.
Author: U. Lüttge
Publisher: Springer Science & Business Media
ISBN: 3642662307
Category : Science
Languages : en
Pages : 482
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Book Description
In the first part (Part A) of this volume on transport, there was an emphasis on the processes occurring at the membranes bounding the cells. It was convenient to distinguish active and passive processes of transport across the membranes, and to recognize that certain transport processes may be regulated by internal factors in the cells such as cytoplasmic pH, concentrations of ions, of malate or of sugar in the vacuoles, or the hydrostatic pressure. Cells in tissues and organs show the same kinds of properties as individual cells, but in addition there can be cell to cell transport related to the organization of the tissue. Firstly cells within a tissue are separated from the external solutions by a diffusion path comprising parts of the cell walls and intercellular spaces; more generally this extra-cytoplasmic part of the tissue has been called the apoplasm. A similar term is "free space". Secondly, the anatomy of cells in tissues seems to allow some facilitated, local transport between cells in a symplasm. Entry into the symplast and subsequent transport in a symplasmic continuum seems to be privileged, in that ions may not have to mix with the bulk of the cytoplasm and can pass from cell to cell in particular cytoplasmic structures, plasmodesmata. In Chara plants, this kind of transport is found operating across the multi-cellular nodes as the main means of transport between the long internodal cells.
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Category : Radioisotopes
Languages : en
Pages : 44
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Book Description
This annotated bibliography contains 148 selected references on the uses of radioactive and stable isotopes in animal husbandry and in studies of fertilizer uptake by plants, plant physiology, photosynthesis, and entomology. These references were selected from scientific journals published during the period 1957-1958. Subject and author indexes and a list of the periodicals from which the references were selected are included.
Author:
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Category : Energy development
Languages : en
Pages : 28
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Author: Thomas Martin Thomas
Publisher:
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Category :
Languages : en
Pages : 214
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Author:
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ISBN:
Category : Nuclear energy
Languages : en
Pages : 1162
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