Answer:
can cause large changes in enzymatic activity
Explanation:
An enzyme refers to a biological catalyst that is typically used to speed up (accelerate) the rate of a chemical reaction by lowering the activation energy of its reactants.
An allosteric effector can be defined as an agent, organ or molecule that is being binded to an enzyme at a site, thereby causing a reduction (negative effect) or an increase (positive effect) in an enzyme activity.
When the activation energy of a reaction is low, the rate of the reaction would be faster. Therefore, an enzyme speeds or catalyzes the rate of a reaction by lowering its activation energy.
Additionally, if the conditions are not optimal for an enzyme, it limits the ability of an enzyme to bind or be joined with its substrates.
Furthermore, an increase in temperature increases or speeds up the rate of a reaction while low temperature limits or reduces the rate of a reaction.
In the human body, the optimal temperature for enzymes is around 37 degrees celsius (°C).
In conclusion, an allosteric effector can cause large changes in enzymatic activity because it acts as an intermediary and mediates specific effect in a metabolic pathway.
Answer:
The bones in the forelimbs of penguins and seals are homologous and the flippers in penguins and seals are analogous.
Explanation:
The flippers of penguins and seals are analagous because they have similar functions but they did not come from the same evolutionary origin. Their separate ancestors evolved them to cope with their respective environments. However, the bones in the forelimbs of penguins and seals are homologous because they both inherited their forelimbs from common ancestors with the same bones in their forelimbs.
<span>To determine population size one must have an effective way to count individuals in a given area. This can be challenging since individuals move and may be accounted for multiple times, therefore skewing the final results. Population density requires one to also calculate the area in which the population resides. This is relatively simple to do, but if individuals then exit or enter the calculated area, then the population density changes.</span>
