Answer: Option D
Explanation: The basic unit of antibody includes two identical light and heavy chains represented by L, H respectively. These heavy chains H and light chains L binds together by disulfide bonds to form a flexible Y shape.
Thus, the stem of the Y shaped antibody is called the constant region, and the tips are known as the variable region. It is these tips that bind antigen or protein from the virus.
Therefore, the correct option is D.
Water is used in many reactions in the body, both enzymatic and chemical. Water within blood and lymphatic system is responsible for the transport of hormones, antidotes oxygen and nutrients.
Metabolism can be described as entirety of chemical reactions which take place within a cell, the result of which is energy for processes which take place in the body.
<span>Catalase catalyzes the decomposition of hydrogen peroxide to water and oxygen. It is a very </span>important<span> enzyme in protecting the </span>cell<span> from oxidative damage by reactive oxygen species. Hope this answers the question. Have a nice day.</span>
Answer:
Proteins play a fundamental role for life and are the most versatile and diverse biomolecules. They are essential for the growth of the organism and perform a huge amount of different functions.
The passage of DNA to proteins begins with the step of transforming genetic information into an intermediary between DNA and protein. This intermediary is called messenger RNA (mRNA). The difference between DNA and mRNA is that the second corresponds to a very small fraction of all DNA, consists of a single chain (it is no longer a “zipper” but a strand), and that Thymine (T) is replaced by the Uracil (U). This fraction corresponds to the stretch of DNA that contains the sequence necessary to ultimately synthesize the protein.
