Answer:
Directly counting blood cells or tissue cells by using a hemocytometer can determine the concentration of a known volume. Counting the number of colonies that arise on a pour plate can calculate the concentration by multiplying the count by the volume spread on the pour plate.
Answer:
they are not permanently altered by the reaction they catalyze
Am certain that the somatosensory cortex in the human brain processes information about bodily sensations. The somatosensory cortex receives all sensory input from the body. Cells that are part of the brain or nerves that extend into the body called neurons.. Neurons that sense feelings in our skin, pain, visual, or auditory stimuli, all send their information to the somatosensory cortex for processing.
Answer:
B
Explanation:
The Golgi Body is actually responsible for this process. Hope this helps!
solution:
Thermodynamically favorable reaction is the products, because the reaction occurs spontaneously, without the need for energy to be added.
Because a reaction is thermodynamically favoured does not mean that it will be a fast reaction. So 'yes' they always proceed but possibly infinitesimally slowly. Temperature is the most common way of quickening a reaction. Of course a catalyst also does so but this generally by changing the way the reaction occurs, i.e. the mechanism is different using a catalyst but the product is the same. Enzymes are natures catalysts, in synthetic chemistry (and in you car exhaust) metal based compounds are often used.
All reactions have an activation energy EaEa between reactants and products and a small increase in the size of this can slow a reaction exponentially. Experimentally, the rate constant is generally found be of the form k=k0exp(−Ea/RT)k=k0exp(−Ea/RT), which is the Arrhenius equation, with R the gas constant and T the temperature in Kelvin
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