Let’s Look at structures in Animal Cells First

Cell Membrane

This structure, in animal and plant cells, holds the parts of the cell inside and controls the movement of materials in and out of the cell.

The Nucleus

• Controls most activities in the cell

• Contains all genetic information in the form of DNA.

Nucleus DNA

Chromatin

Chromosome

Nucleolus

Nuclear Envelope

It is like the “Brain” of the cell

Cytoplasm

This is the jelly-like substance in which the structures inside the plant and animal cells float and move

Endoplasmic Reticulum

– 2 Types:

1.Rough ER: – Rough appearance because it has ribosomes– Function: helps make proteins, that’s why it

has ribosomes

2.Smooth ER:– NO ribosomes– Function: lipids; and detoxifies

Endoplasmic Reticulum

• Series of folded membranes that form sacs or tubes

• Rough ER has ribosomes attached

Ribosomes

• Makes proteins in the cell

• May be free in cytoplasm or attached to ER

Golgi Bodies

• Saclike membranes• Modifies proteins

• Sorts and packages used for storing/ packages

• “Post Office”

VacuoleTemporary storage area for food and waste.

Plant cell—one large CENTRAL VACUOLE

Animals-fewer, smaller. t

It is like a pantry.

Lysosomes

Garbage Disposal

(“suicide sacs)

• Contain digestive enzymes to digest unwanted particles

• Help white blood cells to destroy bacteria

The Energy Tranformers

• Mitochondria

• Chloroplast

Mitochondria

• Energy producers—ATP- releases energy from digested food

• Powerhouse of the cell

• Sausage-shaped

• Many mitochondria in muscle cells

Centrioles

• -microtubules form here for cell division

These are found in plants—not animals

• Cell Wall

• Chloroplast

Cell Wall

This structure is not found in animal cells.

Made of cellulose in plants

Permeable-not selective

Provides support and protection for the plant cell.

Chloroplast

photosynthesis plant makes food.

Animal Cell

7A Building blocks of life - Typical plant cell

Cells

Complete the web with fourcharacteristics of cells.

All organisms -living things-are made of cells.

These cells are liketiny building blocks.

Cells do thejobs that keeporganismsalive.

Cells are the smallestpart of a living thing.

Compare and Contrast plant and animal cells.

Animal Cells Plant Cells

Compare and Contrast plant and animal cells.

Animal Cells Plant Cells

•Cell membrane•Cytoplasm•Vacuoles•Nucleus•Chromosomes•Mitochondria

•Cell wall•Cell membrane•Cytoplasm•Vacuoles•Chloroplasts•Nucleus•Chromosomes•Mitochondria

• ______________________- The part of the cell that controls the cells activities.

• ______________________- The rigid outer covering that protects the cell.• ______________________- The organelle that releases energy from the

food.• ______________________- The organelle that makes food for the plant

cell.• _______________________- The storage place for the waste, food, and

water.• _______________________- The thin covering that holds the parts of the

cell in place.• _______________________- jelly-like substance that contains chemicals

the cell needs to function.• ___________________- the thread-like structures that contains

information about the cell’s characteristics.• . What two things does a plant cell contain that an animal cell does not?

___________, ___________

• Cell membrane, cell wall, nucleus, mitochondria, vacuole, cytoplasm, chloroplasts, chromosomes,

Nucleus

Cell WallMitochondria

Chloroplast

Vacuole

Cell Membrane

Cytoplasm

Chromosomes

Chloroplast Cell Wall

Cell Parts and definitions• The organelle that supports and gives shape to the plant cell. Cell

Wall• The organelle that releases the energy made from the food.

Mitochondria• The organelle that makes food for the plant cell. Chloroplast• The organelle that surrounds the cell and holds the cell’s “insides”

in place. “skin”. Cell Membrane• The organelle that stores food, water and waste. Vacuole • The organelle that is the control center that controls the cell’s

activities. “brain” Nucleus• The organelles that are the threadlike structures that contain the

cell’s characteristics. DNA-chromosomes• The organelle that is a jellylike substance Cytoplasm

Cell ResourcesCell Resources

• Label Cells• I know that!• Cells Alive• How to use a

microscope• Cell Structure• The Virtual Cell• Mixed Up Cells• Electron Microscope

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