Cells Structures and Their Functions

Cells Are the smallest unit of life that carries out all life functions Contain major structures inside that perform these life functions Vary in size, but contain many of the same structures

Organelles (Structures) of the cell Cell Membrane outside covering of the a cell that controls what comes in and out of the cell Analogy -

Nucleus contains Genetic Material (DNA) is the control center of the cell Analogy -

Cytoplasm gel-like fluid inside a cell the other organelles are embedded in the cytoplasm Analogy -

1.1 Animal cell structure All cells have three basic structures in common. cytoplasm nucleus cell membrane cytoplasm nucleus x400 cell membrane

Mitochondria uses oxygen to release energy from food sometimes called the powerhouse of the cell Analogy -

Vacuoles Cell wall act as storage centers Provides extra support and shape for plant cells, it is made mostly of cellulose Analogy -

Chloroplast food-making structures of a plant cell

Comparing plant and animal cell structure

Comparing plant and animal cell structure vacuole nucleus cytoplasm cell membrane (inside barrier) cell wall (outside barrier)

Comparing plant and animal cell structure Which structures both plant and animal cells have in common? x100 x400

Comparing Plant and Animal Cells Plant cells have a cell wall (to give extra support and shape), but animal cells do not. Plant cells have chloroplasts (that enable plants make their own food), but animal cells do not.

Comparing Plant and Animal Cells Plant cells usually have one or more large vacuole(s) (help provide shape and allow the plant to store water and food for future use), while animal cells have smaller vacuoles,if any are present.

1.3 Cell Variety Bacteria Yeast Paramecium Microbes are microscopic unicellular organisms. Below are some examples of different types of microbial cells. Paramecium Yeast Bacteria Osmosis animation

Bacteria Does not have a nucleus Genetic material is found spread throughout the cell

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