 Embryology  Microbiology

 Vocabulary
 Stages
 Processes

 Vocabulary
 Viruses
 Bacteria
 Activity

 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

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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

 Zygote
 Fertilized egg
 Morula
 Solid ball of cells
 Blastula
 Fluid-filled ball of cells
 Gastrula
 3 germ layers

 Fertilization
 Egg and sperm cells meet
 Implantation
 Morula implants into the uterine wall
 Gastrulation
 Blastula forms 3 germs layers and becomes gastrula

 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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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 ResistanceBacteria’s ability to be resistant to certain antibiotics

 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

 Coccus-Sphere shape
 Bacilius-Rod shape
 Spirilium-Spiral shape
 Diplo-Pair of cells
 Strepto-Chain of cells
 Staphylo-Bunch of cells

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

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what is the morula?
a. Solid ball of cells
b. Fluid ball of cells c. Fertilized egg

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a. Coccus
b. Bacillius
c.Spirillium

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