Objective: You will be able to give the functions of the cell organelles. Do Now: Look at the cell organelle sheet Give the function for as many of the cell organelles as you can remember

Figure 7.7 Overview of an animal cell

Figure 7.8 Overview of a plant cell

Write this statement down The mitochondria is a site to see It has lots of energy

Objective: You will be able to describe the structure and function of the endomembrane system.

Figure 7.10 Ribosomes

The Endomembrane System Found only in eukaryotic cells A series of membrane bound organelles in close association Makes and secretes proteins Creates a larger cell membrane Includes the nuclear envelope, E.R., Golgi, vesicles, lysosomes, vacuoles, and the plasma membrane

Figure 7.9 The nucleus and its envelope

Figure 7.11 Endoplasmic reticulum (ER)

Figure 7.12 The Golgi apparatus

Figure 7.14 The formation and functions of lysosomes (Layer 1)

Figure 7.14 The formation and functions of lysosomes (Layer 2)

Figure 7.14 The formation and functions of lysosomes (Layer 3)

Figure 7.6 The plasma membrane

Figure 6.16 Review: relationships among organelles of the endomembrane system Plasma membrane expands by fusion of vesicles; proteins are secreted from cell Golgi pinches off transport vesicles and other vesicles that give rise to lysosomes and vacuoles Membranes and proteins produced by the ER flow in the form of transport vesicles to the Golgi 3 4 5 6 Nuclear envelope Nuclear envelope is connected to rough ER, which is also continuous with smooth ER 2 Nucleus Rough ER Smooth ER cis Golgi trans Golgi Plasma membrane Lysosome available for fusion with another vesicle for digestion Transport vesicle carries proteins to plasma membrane for secretion Transport vesicle 1

Group Activity Think back to the activity in which you created the cell park How can you modify your park to include the structures and functions of the endomembrane system? Write a small paragraph describing the endomembrane system Include a drawing of just the endomembrane system

Objective: You will be able to identify the parts of he mitochondria and the chloroplasts. Do Now: Read the section “mitochondria and chloroplasts” on p. 179-180 Give one similarity between these two organelles

Mitochondria are enclosed by two membranes A smooth outer membrane An inner membrane folded into cristae Mitochondrion Intermembrane space Outer membrane Free ribosomes in the mitochondrial matrix Mitochondrial DNA Inner Cristae Matrix 100 µm Figure 6.17

Chloroplasts Are found in leaves and other green organs of plants and in algae Chloroplast DNA Ribosomes Stroma Inner and outer membranes Thylakoid 1 µm Granum Figure 6.18

Chloroplast structure includes Thylakoids, membranous sacs Stroma, the internal fluid

Figure 7.4 A prokaryotic cell

Figure 7.7 Overview of an animal cell

Figure 7.8 Overview of a plant cell