The Cell and Organelles

Day 2

Review

The Cell Theory All living organisms are made up of one

or more cells Cells are the basic unit of all living

organisms All cells come from previously existing

cells The activity of an entire organism comes

from the total activity of its independent cells

Types of Cells

All Cells

PROKARYOTES EUKARYOTES

Does it have a

nucleus?

YESNO

Does it have a

chloroplast?

YESNO

ANIMALS PLANTS

BACTERIA

Animal Cell

Plant Cell

Closer Look at an Organelles

Mitochondrion

Centriole

Vesicle

Cytoplasm

Golgi Body

Lysosome

Flagellum

Cell Membrane

Smooth Endoplasmic Reticulum

Ribosome

Nucleus

Rough Endoplasmic Reticulum

Cell Membrane

Protective layer surrounding the cell

Allows entry and exit of certain molecules

Acts a boundary for water in cell

Mitochondrion

Double walled organelleLarge surface areaSite of energy production

Sugar + Oxygen Water + Carbon Dioxide + Energy

Nucleus

Control Center of the CellContains the DNA

(deoxyribonucleic acid)Tells the cell how to build

proteinsControls cellular reproduction

Ribosomes

Where proteins are built

Endoplasmic Reticulum

Transports chemicals between cells and within cells

Provides a large surface area for the organization of chemical reactions and synthesis

Smooth (no ribosomes)Rough (have ribosomes)

Golgi Body

Modifies chemicals to make them functional

Secretes chemicals in tiny vesicles

Stores chemicals May produce endoplasmic

reticulum  

Centriole

Forms spindle fibres to separate chromosomes during cell division

Lysosome

Contains digestive enzymes to destroy organelles or cells

Cytoplasm

Fluid in the cell “salty” water full of all the chemicals

and electrolytes needed for cell function

Special Plant Organelles

Chloroplast

Cell Wall

Vacuole

Chloroplast

Contains chlorophyll Converts sunlight into sugar via

photosynthesis

Cell Wall

Gives the cell strength

Vacuole

Stores water, nutrients, other molecules

Regulates sugar in cell

Homework

Pg 32 #1-3, 6-8