a lipid in a membrane an enzyme in a lysosome a polysaccharide in a cell wall a DNA molecule in a mitochondrion
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A scientist uses a special chemical marker to label some amino acids. He follows the marker until it becomes part of a large molecule in a cell. Which molecule does he find the chemical marker on?
Possibilities:
- a lipid in a membrane
- an enzyme in a lysosome
- a polysaccharide in a cell wall
- a DNA molecule in a mitochondrion

an enzyme in a lysosome