2 3 Cell : a cell is a basic unit of structure and function of life. In other words, cells make up living things and carry out activities that keep.

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C ell F u n c tion

R e leas in g en erg y from food .

M ak in g n ew ce lls fo r g row th an d rep a ir.

G ettin g rid o f b od y w as tes .

C e ll w ork tog e th er to p erfo rm b as ic life p rocesses th a t keep o rg an ism s a live .

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Cell: a cell is a basic unit of structure and function of life. In other words, cells make up living things and carry out activities that keep a living thing alive.

Your body is made up of specialized cells which carry out the processes needed for life.

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Genetic material◦ Contains the material for life (DNA)

Cytoplasm fills cell interior – Liquid◦ Contains organelles sugars, amino acids

Plasma membrane(aka. Cell Membrane) Encloses the cell – it is like the cells’ skin

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Cytoplasm Not an organelle, suspends the organelles

Cell Membrane Nucleus Mitochondria Endoplasmic Reticulum (ER) Golgi Bodies Vacuoles

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Gel-like substance which holds all the cell components together

Made mostly of water Place where many chemical reactions occur

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The flexible double-layered “skin” of the cell Just like our skin holds us together, the cell

membrane holds the cell and its components together

It also allows the movement of substances into and out of the cell.

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Controls the cell – akin t our brains controlling us

Holds the genetic material (DNA) which is stored on Chromosomes

Directs activities of the cell Usually one per cell, some cells have several

(muscle) while other have none (Red Blood Cell)

Spherical in shape

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DNA of eukaryotes is divided into linear chromosomes. ◦ Contains all the information needed for life

(genes)◦ We have 23 pairs = 46 totalTotal, half from mom

and half from dad

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• " Powerhouse of the cell" – Uses Glucose to provide cells with energy (Cellular Respiration)

Glucose + Oxygen Carbon Dioxide + Water + Energy

• Cells that use a lot of energy have more• Structure - outer and inner membranes

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◦ Network of transportation tubes which transport cellular substances around the cell (akin to a subway network transporting people from place to place)

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◦Create and secrete mucus which is used as lining for the intestine and stomach

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Contain unwanted substances for removal

Maintaining internal pressures (Plant)

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•Chloroplasts are larger and more complex than mitochondria

•Contain chlorophyll which gives plants their green colour and also allows them to absorb light to be used to create sugar in the process of photosynthesis

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Carbon Dioxide + Water + Light Energy Glucose (Sugar) + Oxygen

Photosynthesis Intro Video

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Within plant cells, photosynthesis takes place to produce glucose (sugar)

The sugar is then used within the mitochondria (cellular respiration) of both plants and animals

How do the animals obtain the glucose?

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It’s a Cycle!!

The products of photosynthesisare the reactants of cellular respiration

The products of cellular respiration are Are the reactants of photosynthesis

YOU CAN’T HAVE ONE WITHOUT THE OTHER!!

Photosynthesis

Glucose + Oxygen Carbon Dioxide + Water + Energy

Carbon Dioxide + Water + Light Energy Glucose (Sugar) + OxygenCellular Respiration

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Plant cells usually have one large vacuole Maintains the cells pressure keeps the

plants stems and leaves firm _________________

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Found just outside the cell membrane in plant cells

_________________ _________________

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http://cellsalive.com/cells/cell_model.htm