CELLSCELLULAR COMPONENTS &

PROCESES

CELL THEORY

1. All living things are composed of cells.2. The cell is the basic unit of structure and

function in living things. 3. All cells arise from preexisting cells.

organelles

• little “organs” within the cell

• Carry out special functions

• We need to know:– Cell Membrane– Cytoplasm– Nucleus– Mitochondria– Ribosomes

CELL ORGANELLSOrganelles are structures inside the cell that perform specific

jobs.

Some functions of organelles:

Transport of materials

Information storage

Protein building

Waste disposal

Energy capture and release

Cytoplasm

• Transports materials within the cell

Cell Membrane

• Protects cell• Controls entry and exit

of substances• Nutrients in• Wastes out

Cell membrane- structure

Click image for video clp

Nucleus

• Command and control

• Information storage

Closing Dec. 01, 2015

• The command and control center of the cell is called ……………………………

• The ……………………………… protects the cell and controls entry and exit.

CELL ORGANELLS Dec.2

Organelles are structures inside the cell that perform specific

jobs.

Some functions of organelles:

Transport of materials

Information storage

Protein building

Waste disposal

Energy capture and release

Mitochondria

• "Powerhouse of the cell" – produces ATP (energy molecule)

• contains enzymes for cell respiration process

• active cells have many mitochondria.

for example: muscle cells sperm

cells

Ribosome

• Ribosomes build proteins

Synthesize = build, make, produce

Ribosome at work – protein synthesis

Vacuole

• Stores and digests food in single-celled organisms

• Serves as Water pump to maintain homeostasis in plants

• What do multicellular organisms have that single celled organisms do not have?

tissues, organs, organ systems

Compare Plant and Animal Cells

Closing Dec. 02, 2015

• One thing I learned about cell organelles is ……………………………….