Cell Organelles

Biology

Neistadt

An organelle is a membrane-bound structure that carries out

specific activities for the cell.

You will need to know the following organelles and their function:

Cell Membrane Nucleus

Cytoplasm Mitochondria Golgi Complex Ribosomes

Smooth Endoplasmic Reticulum Rough Endoplasmic Reticulum

Cell Wall Chloroplast

Central Vacuole Lysosome

Cell Membrane

Every cell is enclosed by a cell membrane. It controls the passage of materials in and out of the cell.

The cell membrane is sometimes called the plasma membrane.

A. True

B. False

Nucleus

The control center of the cell. It contains the DNA code for the cell coiled into chromosomes.

The nucleus is often called the powerhouse of the cell.

A. True

B. False

Cytoplasm(not an organelle - but important)

All organelles reside (live and float around in) the cytoplasm.

Mitochondria

This organelle processes energy for a cell. It makes ATP.

(ATP = energy)

Involved in cellular respiration.

Golgi Complex

The protein packaging and transport center of the cell.

Has incoming and outgoing vesicles.

Ribosomes(not an organelle - but important)

Synthesizes proteins.

Present in the cytoplasm.

Present with Rough ER.

No membrane present.

Smooth Endoplasmic Reticulum

Transports materials throughout the cell.

Digests lipids.

Produces proteins.

Rough Endoplasmic Reticulum

Covered with ribosomes.

Produces proteins.

Transports materials throughout the cell.

Lysosome

Breaks down materials for digestion.

Contains special enzymes for digestion in the cell.

Cell Wall (Plant Cell Only)

Rigid and strong wall.

Protects and maintains the shape of the cell.

Chloroplast(Plant Cell Only)

Contains chlorophyll.

Makes plants green.

Uses light energy to make ATP & sugars.

Photosynthesis takes place here.

Central Vacuole(Plant Cell Only)

Most plant cells have one large one.

Filled w/ fluid.

Helps maintains turgor pressure and shape of cell.

Your Turn:

Draw an animal and plant cell.

Label the cell parts.

Pg 193

Your Turn… On your paper write the name of the organelle and

decorate it in a way that helps you remember what it does:

Nucleus Endoplasmic Reticulum (smooth and rough) Golgi Complex Chloroplasts Cell Wall Mitochondria Cytoplasm Ribosomes Lysosomes Central vacuole