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Define Buffers and Buffer Solutions?
Solutions containing both weak acid and their salts or solutions containing weak hydroxides and their salts are referred to as buffer solutions. They have the capacity of resisting changes in pH when either acid or alkali is added to them. Buffers are therefore, aqueous solutions that tend to resist any pH change when small amounts of acid or base are added. A buffer system consists of a weak acid (proton donor) and its conjugate base (proton acceptor) or a weak base and its conjugate acid in comparable concentrations. Because they maintain a constant pH, buffers are good reference solutions.
Trypsin Trypsin is secreted in the inactive form trypsinor - which is converted into the active form trypsin by the enzyme enterokinase secrated by the duodenal mucosa.
Explain the concept of selective breeding a) Understood the concept of selective breeding and/or were able to use their Knowledge of Mendelian genetics to e
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In high altitudes is it necessary for the blood to have more or less hemoglobin? In high altitudes the air is rarefied and oxygen concentration is lower than in low altitudes.
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What is meant by suction force of the plant cell? Does the suction force facilitate or make difficult the entrance of water in the cell? Ans) The suction force (SF) is the osmot
reaction
Q. Which is the extraembryonic membrane whose function is to store nitrogen wastes of the embryo? Is this function present in placental mammalian embryos? The allantois is the
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