Question

1. a prokaryotic cell does not contain:

a. dna
b. ribosomes
c. a nucleus
d. cytoplasm

Explanation:

To solve this, we recall the structure of prokaryotic cells. Prokaryotic cells have DNA (in the nucleoid), ribosomes, and cytoplasm, but they lack a membrane - bound nucleus. Option a: Prokaryotes have DNA (e.g., in bacteria, the circular DNA in the nucleoid). Option b: Ribosomes are present in prokaryotes for protein synthesis. Option d: Cytoplasm is the gel - like substance in prokaryotic cells where metabolic activities occur. Option c: Prokaryotic cells do not have a nucleus (a membrane - bound organelle that houses DNA in eukaryotes).

Answer:

c. a nucleus