Final answer:
Components such as thylakoids, DNA, and ribosomes are found in chloroplasts, which are involved in photosynthesis in plant cells. These chloroplasts resemble prokaryotic cells in that they have their own DNA and ribosomes. The nucleolus is responsible for ribosome assembly, and mitochondria, like chloroplasts, also have their own DNA and ribosomes for energy production.
Step-by-step explanation:
Thylakoids, DNA, and ribosomes are all components found in chloroplasts. Chloroplasts are the site of photosynthesis in plant cells, containing the green pigment chlorophyll within the thylakoid membranes. These chloroplasts also have their own DNA and ribosomes, resembling those found in prokaryotic cells. Mitochondria are another organelle that contains ribosomes and DNA, conducting cellular respiration to produce ATP for the cell. The central vacuole in a plant cell aids in storage and breakdown of macromolecules, while lysosomes typically perform a similar function in animal cells. The nucleolus within the nucleus is the key location for ribosome assembly, before they move to the cytoplasm or attach to the endoplasmic reticulum for protein synthesis.