Answer:
An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid. ... Each molecule contains a central carbon (C) atom, called the α-carbon, to which both an amino and a carboxyl group are attached.
The R-groups are different and unique
Explanation:
During a stimulus, there is an influx of Na+ ions into the cells. This causes the inside of the cell to develop a more positive charge compared to outside the cell. So, the cell attains a more positive charge when it is stimulated.
this is your answer mark me brainest
Answer:
B
Explanation:
Great variations in temperature and pH from the optimum that an enzyme needs can affect its function. pH affects ionization of the functional groups of amino acids. The interaction of charges of these amino groups helps in stabilizing loops such as those of beta sheets and alpha helices and give the protein its an appropriate shape to function.
Temperatures, on the other hand, while it does not change the ionization of the functional side groups of amino acids, it breaks these bonds of the interactions by giving the molecules enough energy to break free from these bonds hence denaturing the protein.
In meiosis , the no of chromosomes in the daughter cells reduces into half no of that in the initial cell :18
Since photosynthesis is a process that uses co2 and cellular respiration is the process to create co2, if there aren’t any processes of cellular respiration to create the co2 needed in the photosynthesis, it wouldn’t happen.
