Answer:
Overall charge on protein becomes increasingly positive as pH decreases while overall charge on protein becomes negative as pH increases.
Explanation:
It is noticeable that protein are made up of amino acids which contain amine and Carboxyl functional groups.
Protein molecules in aqueous solution become positively charged (Protonated) as pH drops because of the fact that carboxylic acids become less negatively charged as the pH goes on to drop while amine become more positively charged.
Whereas overall charge on protein becomes more negative as pH increases because Acidic groups become more negatively charged while the basic group become less positively charged.
Answer:
b. organs
Explanation:
molecules combine to form cells, cells combine to form tissues, tissues combine to form organs, organs combine to form organ systems, and organ systems combine to form organisms.
Answer:
D.
Explanation:
I had looked it up on the quiz site
If two protons are added to carbon, the chemical identity changes to oxygen, which is two spaces over horizontally on the periodic table. The number of protons is what we call the atomic number (Z), and this is what defines the identity of an element. Since we also added two neutrons, this is simply oxygen, or oxygen-16, the most abundant isotope of oxygen.
