Scientists often require keeping a stock of biological
collections because it is not possible for a scientist to every time go out and
get a sample. Scientists may require comparing several of his biological
subjects that might not always be found in the area, so it is important to keep
a collection. It depends on the type and size of the organism in question.
Certain organisms like butterfly may not be available in the area where the lab
is located. So the scientist has to make prior arrangement and keep a stock of
the organism.
Answer:
peptide bonds are created during the formation of the primary structure
Explanation:
The primary structure of a protein is the amino acids sequence of a protein or polypeptide chain, is the linear sequence of the protein . The amino acids are joined by peptide bond or amide bonds, this is the reason of the name polypeptide.
Carboxylic acid and an amino group form the peptide bond by the loss of a water molecule. The peptide bond is a covalent bond. It forms a relatively rigid unit. It´s synthesis is an enzymatically process carried out and controlled by the ribosome.
The characters of the peptide bond have influence on the flexibility and stability of polypeptide
Two factors that influence the phenotype are: (1) the specific genetic information of the individual (its genotype), and (2) environmental influences on the expression of the individual's genetic potential.
1. The answer is "<span>the energy required to start the reaction".
</span>This energy is called as activation energy of the reaction. If the activation
energy is high, reaction is slow. Enzymes help to carry out the reaction by
a new path by reducing the activation energy. But the energy of reactants
and the products remain as same as without enzyme.
2. The answer is "reaction in cells would be too slow to sustain life<span>".
</span>If the activation energy is very high for the reaction, then that reaction will
be very slow and will require more time<span> to complete the reaction. Then survival is
very low. Hence, the roll of enzymes is very important to sustain life.</span>