Regulates the passage of materials into and out of the cell.

This structural organelle consists of proteins and a phospholipid bilayer.

Peripheral proteins may be found on both the inner and outer surface of this organelle.

Integral proteins in this organelle are involved in structure, support, and cellular transport.

May contain carbohydrates on the outer surface, which are involved in cell recognition and cell joining.

The “fluid mosaic model” is used to describe this organelle.

Controls the cell’s activities

Storage site of DNA and genetic information

Contains one or more nucleoli and all of the chromosomes of a eukaryotic cell.

This organelle contains a nucleolus, which is responsible for manufacturing ribosomal subunits.

The site where RNA is copied from DNA to direct protein synthesis

The “powerhouse” of the cell

Site of cellular respiration

Transfers the energy stored in organic compounds (glucose) to molecules of ATP

These organelles are very numerous in cells that have high-energy requirements (example: liver and muscle cells may contain 2,500 of this organelle)

Inner membrane is folded into “cristae” to increase the functional surface area.

The “matrix” of this organelle contains many enzymes, DNA, and ribosomes

Organelle of the cell that contain their own DNA and ribosomes, and can carry out their own replication

Makes proteins for the cell

Translates the message of mRNA and carries out the building of proteins.

May be found loose in the cytoplasm or attached to the endoplasmic reticulum

Not a membrane-bound organelle

The parts of this organelle are manufactured by the nucleolus in the nucleus.

The most numerous organelles in most cells

This organelle is composed of ribosomal RNA (rRNA) and proteins.

Found in tissues that have a high rate of protein synthesis. A pancreatic cell contains a few million of these.

A system of membranous tubules and sacs that extend from the nuclear membrane to the cell membrane.

An intracellular highway along which molecules can move from one part of the cell to another.

Consists of two types: rough and smooth

May or may not have attached ribosomes

Receives polypeptides (proteins) from ribosomes to prepare proteins for export or for insertion into membranes.

Manufactures the lipid components of cell membranes

Breaks down toxins and poisons

This organelle consists of such an extensive network of membranes that it accounts for more than half the total membrane in many cells.

The sacs of this organelle are called cisternae.

Processes and packages substances for export from the cell.

A collection of smooth, membrane-bound sacs isolated from the endoplasmic reticulum

Works closely with the endoplasmic reticulum in preparing materials for release from the cell.

Completes final modifications of proteins.

Ships proteins to their final destinations.

Transport vesicles arrive at this organelle carrying proteins from the endoplasmic reticulum

Contains strong enzymes used for the digestion of proteins, carbohydrates, lipids, and nucleic acids.

Can digest old organelles and foreign substances such as viruses and bacteria.

Function in “programmed cell death” to rid an organism of damaged or dead cells.

These organelles may be produced by budding from the trans face of the Golgi apparatus.

Consists of microtubules, microfilaments, and intermediate fibers

A network of protein fibers extending throughout the cytoplasm.

Involved in cell division; helps to push and pull chromatids during mitosis and meiosis.

Heavily involved in cell structure and support by providing a framework within the cell.

Acts as a track to move materials around the inside of the cell.

Gives mechanical support to the cell and maintains its shape.

Involved in the contraction of muscle cells.

Short, hair-like structures used to propel a cell through the environment.

Found along the respiratory tract to sweep foreign particles out of the body.

Long, whip-like structures used to propel a cell through the environment.

Rigid structure used for support in plants, algae, fungi, and many prokaryotes.

Found outside the cell membrane in plants; much thicker than a cell membrane.

Composed of cellulose in plant cells

Composed of chitin in fungi

A storage area found inside both plant and animal cells.

May store food, water or the metabolic wastes of the cell.

May store food, water or the metabolic wastes of the cell.

The source of turgor pressure within a plant cell

One type, found in unicellular organisms, can contract to expel excess water

The source of turgor pressure within a plant cell

Found only in plant cells; may store pigments or food.

Contains the green pigment, chlorophyll.

Converts the energy of the sun into the chemical energy contained in molecules of glucose.

Contains thylakoids, which are flattened sacs that increase the functional surface area.

Site of photosynthesis

This organelle transfers hydrogen to oxygen to produce hydrogen peroxide, and then breaks down the poisonous hydrogen peroxide into water and oxygen.

Breaks down fatty acids into smaller molecules that can be transported to the mitochondria for cellular respiration.

Organizes microtubules in the building of the mitotic spindle.

Often called cytosol.

The area of the cell between the nucleus and the cell membrane.

This area contains the various organelles of the cell.

Consists of a gelatin-like, watery fluid that contains salts, minerals, and many organic molecules and compounds.

What is this structure?

What is this structure?

What is this structure?

What is this strucure?

What structures are shown?