Aim: What are the functions of cell organelles?

• Ribosomes are responsible for assembling the proteins of the cell.

• Ribosomes can be attached to the Endoplasmic Reticulum– Called rough ER

Endoplasmic Reticulum

• The endoplasmic reticulum is an extensive network of membranes composed of both regions with ribosomes and regions without ribosomes.

Golgi Apparatus

• responsible for manufacturing, warehousing and shipping certain cellular products, particularly those from the endoplasmic reticulum (ER).

• A Golgi complex is composed of flat sacs that are stacked.

Lysosome

• Lysosomes are membranous sacs of enzymes. These enzymes are typically hydrolytic and can digest cellular macromolecules

Aim:What are the functions of cell organelles ?

Mitochondria

Powerhouse of the Cell

GlucoseGlycolysis

Cytoplasm

Pyruvic acid

Electrons carried in NADH

Krebs Cycle

Electrons carried in

NADH and FADH2 Electron

Transport Chain

Mitochondrion

Cellular Respiration occurs in the Mitochondria

Mitochondrion

Section 9-1

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C6H12O6 + 6 O2 ----------> 6 CO2 + 6 H2O + energy

ATP the energy bar

Centrioles function in cell division

• Centrioles are cylindrical structures that are composed of groupings of microtubules arranged in a 9 + 3 pattern.

Plant cell differences

• Cell wall

• Large vacuoles

• chloroplasts

The electron micrograph shows cells from a sunflower leaf

Chloroplasts in the plant cell

• A typical plant cell (e.g., in the palisade layer of a leaf) might contain as many as 50 chloroplasts.

• The overall chemical reaction involved in photosynthesis is: 6CO2 + 6H2O (+ light energy) C6H12O6 + 6O2

• Summary:

What is the relationship between respiration and photosynthesis?