Question

if a cell lacked ribosomes, it would not be able to
make rna from dna.
translate messenger rna into dna.
make proteins.
translate proteins into messenger rna.

Explanation:

Ribosomes are cellular structures responsible for the translation step of protein synthesis, where they read messenger RNA (mRNA) and assemble amino acids into proteins. Making RNA from DNA is transcription (done by RNA polymerases, not ribosomes). Translating mRNA to DNA is reverse transcription, and converting proteins to mRNA does not occur in normal cellular processes.

Answer:

make proteins.