Chapter 8
Vector
A living organism such as a mosquito that transfers a pathogen from one host to another
Twoessential components that all viruses have
A outer capsid composed of protein units and an inner core of nucleic acid
Functions of bacterial capsules
Aid in sticking to surfaces. Help avoid phagocytosis
Opportunistic infection
An infection that takes advantage of a weekend immune system
Descriptions of malaria
Can be diagnosed by viewing parasites and blood. Severe anemia is possible. "Cyclical pattern of symptoms corresponds with bursting of red blood cells
HIV-1B infection
Causes more infections in the United States then HIV once he does and HIV want to be an effects helper T cells in micro figures
Biosynthesis
Cell produces viral RNA and viral proteins
Chronic
Early symptoms of illness become constant
Acute
HIV - want to be undergoes pro lithic replication
Attachment
HIV gp120 binds to CD4 receptor
HAART
Highly active antiretroviral therapy:
Prions
Infectious particle is made of only proteins
Acquired defenses
Kill infection agent does aloe dad to the body, protect against cancer
Protists
Malaria is caused by organisms of genus plasmodium(parasites) these are protists
Pilus
Many bacteria have hollow appendages called pillows that can transfer DNA between cells
Assembly
New viral particles are made
Beginning infection with any mosquito
One mosquito is infected with plasmodium from human blood to plasmodium forms male and female gametes three plasmodium undergo sexual replication for plasmodium is transmitted to humans via mosquito saliva five plasmodium are undergoes a sexual division
Steps in a typical virus replication cycle
One virus interacts with receptor on host cell service to viral DNA or RNA enters the cell three viral proteins are translated for viral components including the capsid are assembled
First responders
Phagocytic white blood cells
All bacteria are _____ that_____ a nucleus
Prokaryotes;lack
Barriers to entry
Skin and mucous membranes
Aids
T cell count drops below 200 cells per milliliter
Pathogen
The general charm for a bacteria and virus or other microbes that causes disease
Mycobacterium
Tuber cillosis is caused by a bacterial species of the genus
Viruses
Type of microbe is a parasite of cells that it's self is a cellular and bridges the gap between living and nonliving
Integration
Viral DNA inserts into host cell genome
Reverse transcription
Viral RNA genome converted into DNA
Fusion/entry
Viral envelope fuses with host cell, I HIV RNA is released
Budding
Virus exits host cell