Final answer:
Thylakoids, DNA, and ribosomes are found in chloroplasts, which are responsible for photosynthesis in plant cells and algae. Chloroplasts contain their own DNA and ribosomes similar to those found in prokaryotic cells, and thylakoids function in the light-dependent reactions of photosynthesis.
Step-by-step explanation:
Thylakoids, DNA, and ribosomes are all components found in E) chloroplasts. Chloroplasts are vital organelles found in plant cells and algae that perform photosynthesis. Like mitochondria, chloroplasts posses their own DNA and ribosomes. The DNA in chloroplasts, similar to prokaryotic DNA, is located in a generally circular molecule within the chloroplast in a region called the nucleoid. Ribosomes in chloroplasts are more comparable to prokaryotic ribosomes, and they contribute to the production of proteins necessary for the chloroplast's functions. Thylakoids are membrane-bound structures within chloroplasts where light-dependent reactions of photosynthesis occur. These structures are stacked into grana and contain chlorophyll, the pigment crucial for capturing light energy.