Membrane Transport Process Process Energy Source Description Examples Passive processes Simple diffusion Kinetic energy Kinetic energy Net movement of particles (ions. molecules. etc.) from an area of their higher concentration to an area of their lower concentration. that is. along their concentration gradient Movement of fats‚ oxygen‚ carbon dioxide through the lipid portion of the membrane‚ and ions through protein channels under certain conditions Osmosis Kinetic energy Simple diffusion
Premium Cell membrane Diffusion
Balance (Non-reacting Systems) THR/WRU 1. A 40-mol-% aqueous ethanol solution is to be distilled into two streams: a distillate with 98% ethanol and a side stream with 60%. 98% of the alcohol in the feed is to be recovered in these two products; only 2% goes into the bottoms. If the bottoms product contains 2% ethanol‚ calculate the amount of the different streams per 1000 kmol of feed stream. Given: Recovery = 98% of ethanol in feed to distillate and side stream Feed‚ F xF = 0.40 Side
Premium Ethanol Water Petroleum
atoms (and their parts)‚ and combinations of atoms called molecures Cellular level – cells are the basic structural and functional units of life. Tissue level – tissue are groups of similar cells (and their intercellular material)‚ which work together toward a specific function. Examples include blood‚ muscle‚ nerves‚ ets mostly a common embryo group. Organ level – a structure composed of two or more tissue types which work together to perform a function System level (or organ system) – an association
Premium Atom Protein Covalent bond
Membrane Transport Christopher Gaita‚ Deija Williams‚ Elisabeth Johnston & Megan Lade University of Phoenix (Online Campus) Amy Sullivan Introduction: Membrane Transport • What is membrane transport • Types – – – – Diffusion Osmosis Active Transport Endocytosis/Exocytosis Photo Courtesy Of: http://hyperphysics.phy-astr.gsu.edu/hbase/biology/celmem.html Osmosis • Example: A semipermeable membrane bag containing a 30% sugar solution is placed in a beaker of pure water. – Diffusion or osmosis
Premium Osmosis Diffusion Chemistry
Running head: Arguing the Use of Fetal Tissue 1 Arguing the Use of Fetal Tissue Kris Gilley TSTC-Abilene 14/FA Anatomy & Physiology I (BIOL-2401-46WI) Dr. Rita Daniel ARGUING THE USE OF FETAL TISSUE 2 Arguing the Use of Fetal Tissue Since the mid 1980’s research as existed and has been continuing worldwide on the use of fetal tissue and brain disorders. The most prevalent research is that of Parkinson’s disease. An over view of this
Premium Medicine Biology Health
Plant Tissues A mature vascular plant (any plant other than mosses and liverworts)‚ contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. Meristematic The main function of meristematic tissue is mitosis. The cells are small‚ thin-walled‚ with no central vacuole and no specialized features. Meristematic tissue is located in • the apical meristems at the growing points of roots and stems. • the
Premium Xylem Phloem Leaf
Types of epithelial tissue Connective tissue -Connective tissues are fibrous tissues. They are comprised of cells separated by non-living material‚ which is called extracellular matrix. Connective tissue holds other tissues together such as in the formation of organs‚ and has the ability to stretch and contract passively. Bone‚ often referred to as osseous tissue‚ and blood are examples of specialized connective tissues. Conective tissues are cells that are suspended in a matrix of their own secretions
Premium Tissues Connective tissue Stomach
anything covered in lecture may appear on the exam. Membrane Transport 1. Describe the cell permeability and membrane transport. What can enter/exit the cell on its own? What requires assistance? Why? 2. Describe membrane potential. What is it? How is it established? How does it influence the transport of charged molecules? What are the components of the electrochemical gradient? 3. What are the different types of membrane transport? Describe each in detail. Which move solutes
Premium Adenosine triphosphate Cellular respiration Photosynthesis
December 18th‚ 2013 Block 8 Body Tissues Essay There are four major categories of tissues in the human body. Each of them separate into even smaller groups with specific structures and functions. The four major types are epithelial tissue‚ connective tissue‚ muscle tissue and cardiac tissue. They are all necessities of the human body and contribute to many functions our bodies and cells carry out in order to survive. Tissues interact and group together to make up organs which then compose systems
Premium Connective tissue Muscle Epithelium
The State of the Art of Tissue Engineering – Bone Content 1. Introduction………………………………………………….……………………………………………3 2. Bone Grafts and Bone Graft Substitutes…….……………………………………………4 3. Bone Biology……………………………………………………………………………………………..4 4. Tissue engineering…………………………………………………………………………………..5 4.1. Ideal Scaffold 4.2. Growth factors 4.3. Stem cells 5. Future remarks/Conclusion………………………………………………………………………7 6. Appendix…………………………………………………………………………………………………..8 1. Introductions
Free Bone Bone marrow Stem cell