Cell Biology Basics
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Questions and Answers

What is the primary role of the cell membrane?

To protect the cell from its surroundings.

What type of membrane is the cell membrane?

Semi-permeable or selectively permeable

What is contained within the nucleus?

DNA and other genetic materials

What are the sub-organelles found within the nucleus?

<p>Nucleolus, nucleus envelope, and chromatins</p> Signup and view all the answers

What is the main function of the cell membrane in terms of nutrient uptake?

<p>To control the entry and exit of nutrients and other microscopic entities into the cell</p> Signup and view all the answers

Study Notes

Cell Membrane

  • A thin layer of lipids and proteins surrounding the cell, serving as a barrier between the cell and its surroundings.
  • Primary role is to protect the cell from its environment.
  • Acts as a semi-permeable or selectively permeable membrane, controlling the entry and exit of nutrients and microscopic entities into the cell.

Nucleus

  • An organelle comprising several sub-organelles: nucleolus, nucleus envelope, and chromatins.
  • Contains DNA and other genetic materials.

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Description

Learn about the cell membrane and nucleus, their functions and components. Understand the role of cell membranes in protecting the cell and controlling the entry and exit of nutrients.

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