A- Organisms, (any living thing) share certain characteristics that set them apart from nonliving things.

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I- Living Things Carry Out Life Processes
A- Organisms, (any living thing) share certain
characteristics that set them apart from
nonliving things.
B- Life Processes 1-Getting and using
energy a-Nutrition Taking in food
(ingestion) and breaking it down into a
usable molecule (digestion).
b-Transport Move materials throughout organism
c-Respiration Releasing energy stored in
food.

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2- Getting rid of wastes Excretion 3- Respond to
changes in the Environment Regulation
(Stimulus causes a Response) 4- Growth
Development Changing food into more of
themselves. 5- Reproduction Making of more
organisms of same kind to ensure the survival of
the species.
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C- The Compound Microscope 1- Uses two
lenses. a- Eyepiece 10 times. b-
Objectives usually more than one 10 times
and 40 times. c- To find the total
magnification you multiply the eyepiece with
the objective being used. Example
eyepiece is 10 and objective is 40 400 times
larger than actual size.
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d- Stains are placed on the specimen to
enhance the image iodine is a house hold
stain that is often used.

• Parts of microscope
• Coarse-adjustment knob- used first under low
  power, once image is focused you use the fine
  adjustment knob to fine tune the image.

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Eyepiece
Body tube
Revolving nosepiece
Arm
Low power objective
High power objective
Stage
Stage Clip
Coarse adjustment
Diaphragm
Fine adjustment
Light/Illuminator
Base
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• D- Prokaryotes and Eukaryotes
• Cells come in many shapes and sizes.
• All cells
• are surrounded by a barrier called a cell
  membrane.
• all cells contain DNA.

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• Cells are classified into two groups, those with
  a nucleus and those without.
• The nucleus contains the cell's genetic material
  in the form of DNA.
• The nucleus controls cell's activities.

Nucleus
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• Eukaryotes cells have nuclei.
• Prokaryotes cells do not have nuclei.

• Characteristics of prokaryotes eukaryotes?

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• Prokaryotic
• genetic material not in a nucleus.
• do not have membrane-bound organelles.
• generally smaller simpler than eukaryotic
  cells.
• Bacteria.

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• Eukaryotic cells Have a nucleus.

• larger and more complex than prokaryotic cells.
• contain membrane bonded organelles.
• Many cells are highly specialized.
• Plants, animals, fungi, and protists are
  eukaryotes.

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