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Viruses and Monerans
Biology I
Unit 7
Your Name
One-celled Monerans that contain chlorophyll
Blue-green algae
Your Name
A word that means against life
Antibiotic
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Means inside
Endo
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The sticky, outer layer of some bacteria
capsule
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A disease that can be passed from one organism to another
Communicable
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Bacteria reproduce by ________.
Fission
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Substances made from weakened or dead viruses
vaccines
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The process of one organism dividing into two organisms
fission
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Organisms that use dead material for food
saprophytes
Your Name
Name the two functions of the capsule of bacteria
A) Keeps the cell from drying out
B) Helps cell stick to food and other cells.
Your Name
What are the common shapes of bacteria?
Round
Spiral
Rod
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Heating milk to kill bacteria
Pasteurization
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The common cold is caused by ______.
Viruses
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Consist of a protein coat around a chromosome like part
Viruses
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Bacterial cells do not contain a _____.
Nucleus
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A set of steps that proves whether or not a disease is caused by a specific organism
Koch’s postulates
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When growing conditions are not right many bacteria form________.
Endospores
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Give Four ways the AIDS virus is spread
A) Sexual intercourseB) Blood productsC) Sharing contaminated needlesD) Pregnant women to their
developing babies
Your Name
A long whip like thread used for movement
flagellum
Your Name
Name Ways bacteria is helpful.A) In the stomach of cows they break down hay
and grassB) They decompose dead matter- recycles
chemicals.C) Bacteria gives flavor to coffee and tea.D) Breaks down fibers in plants to make rope.
Your Name
Developing new forms of bacteria that produce useful products is an example of _________.
Biotechnology
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A group of similar cells growing next to each other but NOT dependent on each other
COLONY
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The trait that viruses share with living things is the ability to ________.
Reproduce
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A chemical that interferes with the way viruses reproduce
Interferon
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Chemicals made by the body that help destroy viruses and harmful bacteria
Antibodies
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Reproduction from only one parent
Asexual
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Chemicals that kill bacteria on living things are______.
Antiseptics
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Bacteria that DO NOT need oxygen to survive
Anaerobic
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Organism that provides food for a parasite
Host
Your Name
List two ways that viruses differ from living things
A) Viruses are not made of cellsB) Viruses do not grow or respond
to changes in the environment.