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DNA stands for deoxyribonucleic acid and is one of the two types of nucleic acid found in our cells. The name describes what the molecule is.

DNA is:A Nucleic Acid (i.e. it is made up of strings of nucleotides bonded together)Has a backbone made of phosphate and deoxyribose

DNA

Bacteria help our bodies with digestion and produce needed vitamins.

Bacteria also help us by destroying harmful organisms within our bodies.

99% of all bacteria are helpful.

Scientists estimate that bacteria produce nearly half the oxygen found in the atmosphere Bacteria are used to make cheese, milk and yogurt.

BACTERIA

Cell Membrane

Cytoplasm

Chloroplast

Mitochondria

Amylosplast

NucleolusNucleus

Golgi Apparatus

Ribosomes

Vacuole

PLANT CELL

Mitochondria

Nucleolus

Golgi Apparatus

Ribosomes

animal cell

Cell Membrane

Now MATCH the names with each different parts of the cells.

Mitochondria

Ribosomes

Golgi Apparatus

Lysosome

Vacuole

Nucleous

Cytoplasm

Nucleus

CELLS CAN ONLY BE SEEN THROUGH A MICROSCOPE

CELLS CAN ONLY BE SEEN THROUGH A MICROSCOPE

VIRUS

viruses don’t have membranes, instead they dig into the cells membrane and attack the cells! The common cold is a form of a virus.

What is a virus? A virus is a microbe. A microbe is a tiny one-celled living organism, too small to be seen with just your eyes. Other types of microbes are: bacteria, protozoa, and fungi. Some people call microbes “germs”.

over 7 million cells die and

reproduce every minute

there are two primary types of cells.

eukaryotic and prokaryotic

cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells

cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells cells

There are many different forms and types of cells. Cells are

unique to each type of organism. Humans may have hundreds of

types of cells. Some cells are used to carry oxygen through the blood; those are called red blood

cells. Though each cell differs, some don’t have defined nucleus these are called prokaryotic cells.

The thing that they all have in common is they are surrounded

by some type of membrane.

DRAW YOUR OWN CELLS HERE

created by sian lawrence