<span>Proteins that minimize fluctuations in pH are known as buffers. A buffering agent can be either a weak acid or weak base. Buffering agents are usually added to water to form a buffer solution, which only slightly changes its pH in response to other acids and bases being combined with it, particularly a strong acid or a strong base.</span>
Explanation:
For question no 19
Force (F) = 20N
distance (d) = 5m
Work = F * d
= 20 * 5
= 100 J
Now
For question no 20
D. No matter how much force is applied the object must have motion for work to be done.
Answer:
Answer below
Explanation:
DNA encodes information through the order, or sequence, of the nucleotides along each strand. ... The linear sequence of nucleotides in a gene must therefore somehow spell out the linear sequence of amino acids in a protein.
Proteins are made of Amino acids so the answer is Amino Acid (C)
They catalyze the chemical reactions. For the molecules at the beginning for the cycle.
