Exploring the Nucleus: The Control Center of Eukaryotic Cells

Exploring the Nucleus: The Control Center of Eukaryotic Cells

Learning Objectives

At the end of the lesson you will understand the structure and function of the nucleus, its components, and its role in cellular processes.

What do you already know about the nucleus and its functions in cells?

Introduction to the Nucleus

The nucleus is the control center of eukaryotic cells, housing genetic material. It regulates cellular functions and maintains cellular integrity.

The Nuclear Envelope

The nuclear envelope is a double membrane that separates the nucleus from the cytoplasm, maintaining a distinct nuclear environment.

Nuclear Pores and Transport

Nuclear pores are gateways for molecular traffic. They regulate active and passive transport between the nucleus and cytoplasm.

Understanding Nucleoplasm

Nucleoplasm, or nuclear sap, is the substance within the nucleus, supporting chromatin and the nucleolus.

Chromatin: Structure & Function

Chromatin is DNA wrapped around proteins. Euchromatin is active; heterochromatin is inactive, crucial for gene expression and DNA replication.

The Nucleolus

The nucleolus is a dense region for ribosome biogenesis, playing a key role in protein synthesis and cellular metabolism.

Nuclear Lamina

The nuclear lamina, composed of lamin proteins, maintains nuclear shape and supports DNA replication and cell division.

Nucleus in the Cell Cycle

The nucleus regulates the cell cycle phases: interphase, mitosis, and cytokinesis, with structural changes throughout.

Write down 2 things you want to know more about.

Write down 3 things you learned in this lesson.

Ask 1 question about something you haven't quite understood yet.