different sucrose concentrations on potato stripes which have been submerged in a range of solute sucrose concentrations. II. Background Information Osmosis is one of the four methods of moving particles across membranes along with simple diffusion‚ facilitated diffusion‚ and active transport. Water is able to move in and out of most cells freely. Sometimes the number of water molecules moving in and out is the same and there is no net movement‚ but at other times the molecular movement from one direction
Premium Osmosis Chemistry Concentration
1. explain how information technology puts powerful tools in the hands of global martekers. technology is very important in now times this is why in every area of the business technology is a very important tool‚ information technology and international marketing are working very closely; information technology innovations is improving marketing process and the way we interact with the customers. So thanks to information technology markters now have more information about customers and they
Premium Marketing
Produced by cell clusters in the pancreas called the Islets of Langerhans‚ insulin is a hormone that regulates glucose concentration in the blood. It is a protein synthesised and stored by beta cells‚ which secrete it in surges responding to changes in glucose levels. (Hardin‚ Bertoni and Kleinsmith‚ 2012) Fig 1. The Pancreas and Insulin |Source: University of Maryland (2011) | | |
Premium Cell Protein Endoplasmic reticulum
CELLS – CH 3 HISTORY OF CELL DISCOVERIES -1665 – Cells were discovered and named by ____________. (in _________________) -1673 – ______________ was the “Father of _______________”. First to describe ______________________. Other scientists made discoveries which helped to create… The ___________ Theory: 1. _______________________________________________. (Schleiden and Schwann) 2. _________________________________________________________________. 3. __________________________________________________________
Premium Cell Organelle Eukaryote
Glomerular Filtration Activity 1: Effect of Arteriole Diameter on Glomerular Filtration 1. Compare this data with your baseline data. How did increasing the afferent arteriole radius affect glomerular filtration rate? >>Increasing the afferent arteriole radius pushed the glomerular pressure‚ the glomerular filtration rate‚ and the volume of urine to be higher than the baseline data. Increasing the afferent arteriole radius increased the glomerular filtration rate. 2. Under
Premium Kidney Nephron Glomerulus
power transport Diffusion: 1: simple; no membrane proteins ‚ 2 : facilitated(passive): requires membrane bound carrier protein that assits transport …….. both deal with gradients‚ kinectic energy and equilibrium * Higher to lower concentraion Osmosis; water moves form higher to lower concentration Filtration: occurs only across capillary walls Vesicular transport(active process); phagocytosis‚ endocytosis‚ pinocytosis‚ and excocytosis KE= ½ mv^2 Driving force of diffusion is…. Kinetic
Premium Skeletal muscle Myosin Muscle
Potatoes The initial weights of the potato cubes ranged from 0.93-1.04 grams from the solutions containing AgNO3 (Table 1). Graph one depicts the correlation of percent change in weight for each sucrose concentration with AgNO3 added. The initial length of the potato cylinders were 2cm as depicted in table two. Graph two depicts the correlation of percent change in length in different sucrose concentrations. The initial weights for the solutions lacking AgNO3 ranged from 1.0-1.7grams (Table 3)
Premium Chemistry Concentration Water
they are constantly moving enabling the passive transfer of certain substances into and out of cells. Diffusion is the passive movement of molecules from an area of higher concentration to areas of lower concentration. In a closed environment‚ molecules will disperse until they reach a state a dynamic equilibrium. As the molecules approach equilibrium‚ the net or overall rate of diffusion begins to slow and occurs equally in all directions. In an open environment‚ there are no "walls" to confine
Premium Concentration Osmosis Chemistry
examples. 3. What functions can a lipid bilayer perform? 4. Four functions membrane proteins can do? 5. What do are the criteria a particle must have to simple diffuse through the lipid bilayer? 6. What’s the difference between facilitated diffusion and simple diffusion? 7. What’s osmosis? 8. What’s the meaning of hypertonic‚ hypotonic‚ isotonic? Give examples if a RBC (red blood cell) was place in each type of solutions. 9. What’s plasmolysis and turgor pressure? 10. Compare and contrast
Premium Protein Signal transduction Cell membrane
Chapter 7 Study Guide Cell Structure and Function Section 71: Robert Hooke used an early compound microscope to look at a thin slice of cork. It seemed to make tiny empty chambers (cells). Anton van Leeuwenhoek used a singlelens microscope to observe pond water & other things. The microscope revealed a world of tiny living organisms that seemed to be everywhere. Matthias Schleiden concluded that all plants were made up of cells. Theodor Schwann stated that all animals were made up of cells
Premium Cell