Chapter 7 Cell Structure and Function Section 7

Chapter 7 Cell Structure and Function Section 7. 1 - Life is Cellular Section 7. 2 - Eukaryotic Cell Structure Section 7. 3 - Cell Boundaries Section 7. 4 - Diversity of Cellular Life

Section 7. 2 - Eukaryotic Cell Structure

Basic Parts of a Cell

Comparing Cells • There are some differences between plant and animal cells • There are some similarities

Nucleus • “The Brain” • DNA, surrounded by nuclear envelope, nucleoluswhere ribosomes are made

Ribosomes • “The Construction Company” • Builds proteins • Free floating in the cytoplasm or attached to the ER

Endoplasmic Reticulum • “The Highway” (tubes and sacs) • Rough – Produces phospholipids and proteins • Smooth – Produces cholesterols

Golgi Apparatus • “The Post Office” – Receives proteins from ER – Modifies, labels and directs proteins to locations in the cell

Lysosomes • Specialized organelles – Lysosome- “The Killer or Garbage Truck” • Breaks down molecules • Maintains cell’s health by getting rid of non-functioning parts

Vacuole • Specialized organelles – Vacuole- “The Storage Center” • Stores water, nutrients and waste

Mitochondria • “The Power House” • Where ATP is produced

Chloroplast • Use light energy to make C 6 H 12 O 6 and O 2 – Thylakoids • Flattened membranous sacs that contain chlorophyll – Chlorophyll • Pigment that absorbs light and captures light energy for the cell

Cytoskeleton • “The Infrastructure” – Cell support – Microtubule • Hold organelles in place – Microfilaments • Cell movement – Intermediate Filaments • Maintain internal shape of cell