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Cell Structure and Functions

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Page 1: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Cell Structure and Functions

Page 2: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Cell Theory

There are three parts to the cell theory

1. all living things are made of one or

more cells

2. cells are the basic units of structure

and function in organisms.

3. All Cells arise from pre-existing cells

Page 3: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Cell Organelles

• What are organelles?• internal compartments

that carry out specific cell functions

• How are organelles beneficial to a cell?– They allow the cell to

grow larger and become more specialized

Page 4: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the
http://micro.magnet.fsu.edu/cells/animals/images/cellnucleus.jpg
Page 5: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the
http://micro.magnet.fsu.edu/cells/animals/images/endoplasmic.jpg
Page 6: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Smooth endoplasmic reticulum

• Syntheisizes steroids• Detoxifies poisons

(alcohol)• Transports

substances• Regulates calcium

levels for muscle contraction

Page 7: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Vesicle

• Membrane-sac that transports materials

Page 8: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Golgi Apparatus

• membrane-bound structure

• organelle modifies molecules and packages them into small membrane bound sacs called vesicles

http://ntri.tamuk.edu/cell/golgi.jpg
Page 9: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Mitochondria

• Membrane bound organelles

• Powerhouse of the cell

• Energy production for cells

• Sites of aerobic respiration

• “mitochondria makes me mighty”

Page 10: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Lysosomes

• digests waste materials and food within the cell

• breaks down molecules into their base components with strong digestive enzymes

Page 11: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Assist with cell division : helps to move chromosomes

centrioles

Page 12: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

Plant Cell

• Plant cells have different structures

• Contains:

– Cell wall– Chloroplast– Vacuole (large central,

takes up most part of cell)

Page 13: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

• Microtubules• Vacuole• Golgi• Smooth E.R.• Rough E.R.• Nucleolus• vesicle

• Nuclear envelope• Cytoplasm• Microvilli• Ribosomes• Centrioles• Mitochondria

http://www.youtube.com/watch?v=Mszlckmc4Hw

http://www.bing.com/videos/search?q=cell+animation&mid=2096F8D769EE0D9F92E22096F8D769EE0D9F92E2&view=detail&FORM=VIRE3&adlt=strict

Page 14: Cell Structure and Functions. Cell Theory There are three parts to the cell theory 1. all living things are made of one or more cells 2. cells are the

A. Extensions of membrane

B. Fluid portionC. Processes/packagesD. Synthesizes proteinsE. Transportation

(ribosomes attached)F. Transportation (also

makes lipids)

G. Transportation (move to cell membrane)

H. Internal supportI. Makes ribosomesJ. Barrier for nucleusK. Stores food/waterL. Releases energy in

foodM. Assists with cell

reproduction


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