Explanation
Correct Option: B
Explanation:
Porins are channels present on the outer membrane of mitochondria and some bacteria.
It is made of a trimer of the beta-barrel transmembrane protein.
It acts as a specific pore or channel that is large enough to allow the passive diffusion of substance.
These are found in mitochondria, chloroplast, and external membranes of gram-negative bacteria.
These are useful in the regulation of diffusion of small molecules like sugars, amino acids, and ions also.
hence, porins are proteins.
Correct option: B
Solution:
Option (a):
∙Lysozyme is a naturally occurring enzyme.
∙This enzyme is generally present in the bodily secretions such as tears, saliva, and milk.
∙ It functions as antibacterial agent by cleaving the peptidoglycan component of bacterial cell walls
∙This can result in the death of the bacterial cell
Hence, the correct answer is option (b).
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