Answer:
d. One additional neutron
Explanation:
Phosphorus-32, a radioactive variant of phosphorus, possesses 15 protons and 17 neutrons.
Conversely, Phosphorus-31, the most prevalent isotope of phosphorus, contains 15 protons and 16 neutrons.
This indicates that one isotope has one more neutron than the other.
Answer:
b. the composition of R groups varies among the 20 amino acids in proteins, which can be either polar or charged.
Explanation:
As proteins consist of numerous amino acids connected together, their connections occur uniformly across all amino acids because one segment remains identical among them all.
The remainder of each amino acid, known as the R group, differs across the various types, defining their unique characteristics and contributing to their chemical properties.
Answer:
B) Lysosome
Explanation:
Lysosomes are organelles within eukaryotic cells, characterized by a covering of double membranes and an internal composition of hydrolytic enzymes. These enzymes, commonly referred to as digestive enzymes, play important roles in catalyzing the breakdown of proteins and various complex molecules. Examples of hydrolytic enzymes located within lysosomes include proteases, glycosidases, and phosphatases.
