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Which are the molecules that make possible active transport through membranes?
Ans) Active transport is made by particular membrane proteins. These proteins are known as "pumps" because they "pump" the moving substance through the membrane using energy from ATP molecules.
diff b/w protonephridia and metanephridia
Which term is used to describe organisms that live on or in the bottom of an ocean or lake. Such organisms can be found anywhere from the shoreline to greatest ocean depths? a)
What is Electron Cloud Model ? Electron Cloud Model : In recent models of the atom, electrons form electron clouds, in which electrons travel in spherical and dumbbell-shap
The improper handling and transfer of the solid wastes results in various health and environmental hazards, such as: 1. Spoilage of landscape: Municipal wastes heap up o
The luria-nebraska neuropsychological battery This procedure was first reported in 1978 in the form of two initial validity studies. Historically, Chirstensen, a student of the
Ordinary osmosis cannot be used to purify water. If the applied pressure exceeds osmotic pressure then water starts moving from solution side to pure solvent side. This is reverse
Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory system? Platyhelminthes have a primitive excretory system made of flame cells (als
Q. What is circulation? Circulation is the movement of substances like gases within blood vessels and nutrients and cavities throughout the organism. Q. Do all animals have
Looking at what the academic world is publishing, microarray research is actually hot right now, and people haven't quite figured out what the best way is (some might argue if we s
What is population growth rate? Population growth rate (PGR) is the percent variation among the number of individuals in a population at two different times. Thus the populatio
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