★ questions about microbiology !!( virus , bacteria ~) PLZ !!!!?

1. What is chemosynthesis? How does it work in purple sulfur bacteria?





2. How do bacteria obtain their nutrition?





3. How do bacteria breathe?





4. What are 3 diseases caused by virus? bacteria?





5. What is the difference between lytic cycle and lysogenic cycle.





PLEASE ANSWER MY QUESTIONS T-T

★ questions about microbiology !!( virus , bacteria ~) PLZ !!!!?
1. Chemosynthesis, process in which carbohydrates are manufactured from carbon dioxide and water using chemical nutrients as the energy source, rather than the sunlight used for energy in photosynthesis. Purple bacteria use energy from the sun but extract electrons from substances other than water, and therefore release no oxygen.





2. Bacteria breathe through a process called photosynthesis





3. Breathe through a process called " Glycolysis "





4. Diseases caused by virus include: AIDS, Polio, Rabies, Influenza, and colds. Diseases caused by bacteria include: Tuberculosis, Diptheria, Syphilis, Bubonic Plague, Typhus, Tetanus, Cholera, Typhoid, Leprosy, Lyme Disease





5. During a lytic cycle, the bacteriophage uses the replicative machinery of the bacterial cell to make many copies of its viral genome and to produce structural proteins of the phage head and tail. After phage DNA genomes are packaged into phage particles, the cell lyses (ruptures), releasing progeny phage capable of infecting other bacteria.





During a lysogenic cycle, the phage's DNA is inserted into the circular bacterial chromosome. The viral genome remains dormant in the bacterial chromosome, being replicated and passed to progeny bacteria along with host DNA sequences. When an appropriate extracelluar signal (e.g. environmental stress, UV light) impacts the bacterium, the viral plasmid genome is excised from the bacterial chromosome, and the phage initiates a typical lytic cycle.

daphne