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Water potential

Campbell's Biology 9 Edition Unit 2 Outline

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Biology
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Cell Biology
Cytoskeleton
organelles
cell
Endoplasmic reticulum
Tonicity
Microtubule
Cytoplasm
Water potential
Intracellular transport

Unit 2 Info Be aware of support structures in cytoskeleton Microtubules Act as transport feature as well Easily broken down and reformed Microfilaments: Circulation of cytoplasm Intermedia filaments support for cytoskeleton Any shape change involves cytoskeleton All three assist in the change in shape Water potential Depends on solute concentration and pressure Presence of solutes makes water potential lower Pressure can set the potential to zero evening everything out Hypotonic Hypertonic Cis receives the contents in the Golgi Trans transports the contents in the Golgi Rough ER has ribosomes so they construct proteins Smooth ER is making complex carbs and lipids Hormones are made of lipids

Water Potential

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Biology
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Chemistry
Biology
Membrane biology
matter
diffusion
Cell Biology
Solutions
Water technology
Osmosis
Osmotic pressure
Water potential
Properties of water

Water Potential (?) Water potential (?) is a measure of water?s potential to do work. In order to do work, an object must be able to apply enough force to another object to cause displacement. In order for water to displace another object, water must be moving. The largest water potential any volume of water can have, if only standard atmospheric pressure is being applied to that volume of water, is defined as 0. This is the water potential for distilled water. Distilled water has the greatest potential to move, and thus displace another object.

Problems Water Potential

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Biology
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Biology
Cell Biology
Membrane biology
Solutions
diffusion
Water technology
Osmosis
Turgor pressure
Tonicity
Water potential
Osmotic pressure
Molecular diffusion
health
Technology

Practice Problems ? Osmosis and Water potential Use this key to answer all the problems below. If you choose B or C, rewrite the statement so that it is complete and true. A = TRUE B = FALSE C = NOT ENOUGH INFORMATION PROBLEM ONE: The initial molar concentration of the cytoplasm inside a cell is 2M and the cell is placed in a solution with a concentration of 2.5M. Initially, free energy is greater inside the cell than outside It is possible that this cell is already in equilibrium with its surroundings. Initially, solute concentration is greater outside the cell than inside. Water will enter the cell because solute potential is lower inside the cell than outside.

Campbell Biology Chapter 36 Outline

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Biology
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Biology
Plant physiology
Plant Anatomy
Tissues
Membrane biology
Cell Biology
Xylem
Phloem
Osmosis
Vascular plant
Water potential
Absorption of water

Mica Piro Chapter 36: Resource Acquisition & Transport in Vascular Plants Adaptations for acquiring resources were key steps in the evolution of vascular plants (36.1) EVOLUTON Land plants typically inhabit 2 worlds?above ground (where shoots acquire sunlight and CO2) and below ground (where roots acquire water and minerals) The algal ancestors of land plants absorbed water, minerals, and CO2 directly from the water in which they lived Earliest land plants were nonvascular plants that grew photosynthetic shoots above the shallow fresh water in which they lived The leafless shoots had waxy cuticles and few stomata, which allowed them to avoid excessive water loss while still permitting some exchange of CO2 and O2 for photosynthesis

Diffusion Worksheets

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Biology
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Chemistry
Biology
Cell Biology
Membrane biology
diffusion
Solutions
Membrane technology
Osmosis
Osmotic pressure
Tonicity
Water potential
Dialysis tubing
health

AP Biology James Pre-Lab: Diffusion and Osmosis in Model Systems In parts 1 and 2 of this lab, you will have the opportunity to investigate the processes of diffusion and osmosis in model membrane systems. You will also investigate the effect of solute concentration on water potential as it relates to living plant tissues. Objectives: At the completion of this AP laboratory, you should be able to: Describe the mechanisms of diffusion and osmosis. Describe how solute size and molar concentration affect the process of diffusion through a selectively-permeable membrane. Describe the relationship between solutions that are hypotonic, hypertonic, or isotonic. Design an experiment to demonstrate water potential.
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