How do antiviral medications work? What occurs when viruses get inside cells? What kind of relationship do many plants have with nitrogen-fixing bacteria? Bacterial pathogens can produce many diseases that affect humans and other animals. Inside the cell wall is a cell membrane surrounding the cytoplasm. Vectors in gene therapy wikipedia , lookup. Slight genetic changes would be needed for the bird flu virus to become infectious to humans.
Name Class Date The two different domains of prokaryotes are 3. Why is the process of nitrogen fixation important? Organisms that can survive without oxygen when necessary are called facultative anaerobes. Archaea are more closely related to than 5. What would happen to plants and animals if decomposers did not recycle nutrients? Genetic engineering wikipedia , lookup.
Another is virus and bacteria evolution. Most prokaryotes are heterotrophs. Suppose you were studying an infectious unicellular organism with a cell wall under a microscope.
Misfolded protein that causes disease in animals 5.
Prions cause disease in animals, including humans. Prokaryotes that require a constant supply of oxygen to live are called obligate aerobes. When a bacterial infection does occur, antibiotics can be used to fight the disease.
Energy Capture by Prokaryotes Group Description Organism that carries out photosynthesis in a manner similar to that of plants Chemoautotroph Organism that takes in organic molecules and then breaks them down Photoheterotroph Name Class Date Why do all organisms need nitrogen?
A n noninfectious disease is an unknown disease that appears in a 02.1 for the first time. Viral Infections Viruses have two methods of infection once inside a host cell.
What is a capsid? Viruses produce other serious virusfs in other animals and in plants.
Others are producers that carry out photosynthesis. What are some human diseases homeework by viruses? They damage the cells and tissues of the infected organism directly by breaking down the cells for host.
Ho,ework may be photoautotroph, or chemoautotrophs. What organs do the bacteria that cause tuberculosis typically damage? Lesson Summary Bacterial Diseases Microorganisms that cause diseases are known as pathogens.
Moody, Alyssa / Chapter 20 – Viruses and Prokaryotes
They can also exchange genetic information by conjugation. Whiplike structures on a bacterium that produce movement are called A. In the case of bacteriophage T4, viral DNA directs the synthesis of new viruses using 02.1 in the cell. In a lysogenic infection, how can one virus infect many cells?
How could you confirm that the organism was a prokaryote? Why is the process of nitrogen fixation important? How do you suppose this is possible, when viruses are not alive?
Viruses that infect bacteria are called bacteriophages.
Pathogens are able to evolve over time. Protective structure formed by a prokaryote when homeework conditions are unfavorable E. Then, circle the step that shows lysis of the host cell.
Using bleach to clean a countertop How may the reproductive methods of viruses help the process? What are rod-shaped bacteria called? In a lytic infection, a virus enters a cell, makes copies of itself, and causes the cell to burst, releasing new virus particles that can attack other cells.
Bacterial pathogens can produce many diseases that affect humans and other animals. They recently discovered prions, which are disease-causing forms of proteins. Many prokaryotes can form endospores when conditions are unfavorable in order to protect their DNA.