Water Relations (2)

Water Relations (2) - WATER RELATIONS 1. 2. 3. Major...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Water as a Physical and Chemical Medium -Water content of organisms: 50-90% -Water is a medium for biochemical reactions -Water participates directly in biochemical reactions -Water provides a means of structural support in plants (hydroskeleton) ***Organisms must maintain appropriate concentrations of water and dissolved substance (minerals, inorganic salts, amino acids etc.)*** Water Acquisition vs Water Loss Solute Acquisition vs Solute Losses WATER RELATIONS Major Concepts 1. The movement of water down concentration gradients determines the availability of water to organisms. 2. Plants and animals regulate their internal water by balancing water uptake against water loss 3. Marine and freshwater organisms use complementary mechanisms for water and salt regulation
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
_________________________ Saturation Water Vapor Density (mg/L ) Water vapor pressure ( wvp ) – pressure exerted by water vapor in the atmosphere. Saturation water vapor pressure ( swvp ) - pressure exerted by water vapor in air that is saturated. Vapor pressure deficit (
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/30/2011 for the course BIOLOGY 414 taught by Professor Foster during the Spring '11 term at Kansas.

Page1 / 27

Water Relations (2) - WATER RELATIONS 1. 2. 3. Major...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online