Question

1. what are the main features of a prokaryotic cell? 2. (a) what are the main features of a eukaryotic cell? (b) name examples of eukaryotic cells:

Explanation:

1. Prokaryotic cells lack a nucleus and membrane - bound organelles. They have a single, circular DNA molecule, a cell wall (in most cases), and ribosomes for protein synthesis.
2. (a) Eukaryotic cells have a true nucleus enclosed by a nuclear membrane, multiple linear chromosomes, and various membrane - bound organelles like mitochondria, endoplasmic reticulum, etc.

(b) Examples of eukaryotic cells include animal cells (such as skin cells, nerve cells), plant cells (leaf cells, root cells), and fungal cells (yeast cells).

Answer:

1. Lack of nucleus and membrane - bound organelles, single circular DNA, cell wall (in most), ribosomes.
2. (a) True nucleus, multiple linear chromosomes, membrane - bound organelles.

(b) Animal cells (e.g., skin, nerve), plant cells (e.g., leaf, root), fungal cells (e.g., yeast).