Cell division. The whole process involves 3 main stages namely interphase, mitosis and cytokinesis.It would, however be wrong to say that its mitosis only because mitosis does not involve the duplication of chromosomes. Duplication of chromosomes occur during the interphase while the splitting of cells occur during Telophase of mitosis and Cytokinesis. Therefore, answer to this has to be generalised to be just cell division.
The structural variations that can happen in a protein after translation to make it function appropriately are:
• Folding – In the cytoplasm it partakes chaperonin protein that will aid to fold the protein into a purposeful shape. The hydrogen bonds will form to create secondary protein and disulfide bonds will form tertiary structure and hydrogen bonds.
• Cleavage – The activation into a purposeful protein over cleavage of certain amino acid sequences in which the amino acid order can fold to form the secondary or tertiary structure.
• Chemical Modification – A method of chemically responding a protein or nucleic acid with chemical components.
• Elaboration – In particulars of folding, chaperones, kinds of bonds, the role of Golgi, combination into current molecular arrays. Etc.
The Pathway
• air enters the nostrils
•passes through the nasopharynx
•the oral pharynx
•through the glottis
• into the trachea
• into the right and left bronchi, with branches and rebranches into
• bronchioles each of which terminates in a cluster
• alveoli
Answer:
t = ln (N/N°)/(-0.0239)
Explanation :
The decay law is represented as
N = N°e^-kt
Where N is the final number of atom,
N° is the initial number of atoms
k is the decay constant
t is the half-life.
From the above we have,
N/N° = e^-kt
take ln of both sides
ln (N/N°) = -kt
t = ln(N/N°)/-k
At half life, N/N° = 1/2
Therefore, t = (ln 1/2)/-k
t = -0.693/-k
But t = 29 sec
29 = -0.693/-k
k = 0.0239 s^-1
Therefore,
The formula will be
t = ln (N/N°)/(-0.0239)
