Cell Biology Overview

Eukaryotic cells are complex and contain a nucleus, while prokaryotic cells are simpler and do not have a nucleus.

The rigid cell wall supports and strengthens the plant cell, protecting it from mechanical stress.

Chloroplasts are responsible for photosynthesis, converting light energy into chemical energy stored in glucose.

<p>Plasmid DNA carries genes, such as those for drug resistance, and can be shared between bacteria.</p> Signup and view all the answers

<p>The cell membrane regulates what enters and exits the cell, maintaining homeostasis.</p> Signup and view all the answers

<p>Mitochondria are the sites where most reactions for respiration occur, producing the energy needed by the cell.</p> Signup and view all the answers

<p>Ribosomes are involved in protein synthesis, translating genetic information into functional proteins.</p> Signup and view all the answers

<p>Bacterial cells lack a nucleus because their chromosomal DNA floats freely in the cytoplasm.</p> Signup and view all the answers