TABLE OF CONTENTS
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Embryology

Microbiology
EMBRYOLOGY
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Vocabulary
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Stages
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Processes
MICROBIOLOGY
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Vocabulary
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Viruses
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Bacteria
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Activity
VOCABULARY
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Embryology-the branch of biology that studies the
formation and early development of a living species.
Embryo-From implantation to 8 weeks
Fetus-After 8 weeks
Fertilization-Egg and sperm come together to form
a zygote
Zygote-Fertilized egg
Cleavage-First few mitotic divisions of the zygote
Morula-Solid ball of cells
VOCABULARY (CONTINUED)
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Blastula-Fluid filled ball of cells
Implantation-When the blastula attaches to
the uterine wall
Gastrulation-When the blastula forms three
germ layers called a gastrula
Gastrula-3 germ layers are formed
Endoderm-Innermost layer (digestive track)
Mesoderm-Middle layer (internal organs)
Ectoderm-Outermost layer (skin and
nervous system)
Stem Cells-Unspecialized body cells
STAGES
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Zygote
 Fertilized egg
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Morula
 Solid ball of cells
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Blastula
 Fluid-filled ball of cells

Gastrula
 3 germ layers
PROCESSES
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Fertilization
 Egg and sperm cells
meet
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Implantation
 Morula implants into
the uterine wall
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Gastrulation
 Blastula forms 3
germs layers and
becomes gastrula
VOCABULARY
Virus-Non-living particles that need a
host cell to survive
 Lytic Cycle-Instant virus reproduction
 Lysogenic Cycle-Viruses hide in host
until signaled to replicate
 Vaccine-Dead or weakened virus that
improves the immunity to a particular
disease
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VOCABULARY (CONTINUED)
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Bacteria-Unicellular prokaryotic cells
Obligate Aerobe-Requires oxygen
Obligate Anaerobe-Requires complete lack of oxygen
Faculative Anaerobe-Does not need oxygen, but can use
it
Binary Fission-Process that allows bacteria to replicate
(identically)
Conjugation-When bacterium exchange genetic
information
Endospore-Allows bacteria to go dormant when
conditions are unfavorable
Antibiotic-Drugs that combat bacteria by interfering with
various cellular functions
Antibiotic Resistance-Bacteria’s ability to be resistant to
certain antibiotics
VIRUSES
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Bacteriophage-Virus that attacks bacteria
Tobacco Mosaic Virus-Virus that attacks tobacco
plants
Ebola-Animal virus
HIV (Human Immunodeficiency Virus)- Leads to
AIDS (retrovirus)
Influenza Virus-RNA containing virus
http://ed.ted.com/lessons/cell-vs-virus-a-battlefor-health-shannon-stiles#watch
BACTERIA
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Coccus-Sphere shape
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Bacilius-Rod shape
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Spirilium-Spiral shape
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Diplo-Pair of cells
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Strepto-Chain of cells
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Staphylo-Bunch of cells
ACTIVITY
Question 1. What is Embryology?
a.
The study of ‘lil nuggets
b. The study of formation and development
c. The study of all living things
WRONG ANSWER!!
GO BACK AND TRY AGAIN!
Question 2. what is the morula?
a. Solid ball of cells
b. Fluid ball of cells
c. Fertilized egg
WRONG ANSWER!!
GO BACK AND TRY AGAIN!
Question3. which one is “rod”
shaped?
a. Coccus
b. Bacillius
c.Spirillium
WRONG ANSWER!!
GO BACK AND TRY AGAIN!
CONGRATS YOU WIN!!!
Happy studying! Good luck on
finals!