What are lysosomes, and how do they work in the cell?
What will be an ideal response?
Lysosomes are membrane-bound organelles containing about 40 different digestive enzymes. The lysosomes digest bacteria as well as dispose of useless or worn-out parts of the cell.
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Viruses are the cause of various diseases such as polio, HIV, or the flu. However, viruses are also very helpful to our environment. In what way can viruses be beneficial to the environment?
A. Viruses caused the evolution of singlecelled eukaryotes through horizontal gene transfer, thereby limiting the number of these microorganisms in soil and water. B. Viruses limit the bacterial infections in animals by causing mutations within the bacterial genome. C. Viruses limit the number of viral infections in animals by mutating other viruses on contact. D. Viruses limit the number of bacterial infections in plants by causing the mutations within the plant genome. E. Viruses aided evolution of bacterial and archaeal genomes and limit the number of other viruses and other microoganisms in soil and water.
Unicellular or colonial eukaryotic organisms that are either autotrophic or heterotrophic belong to the Kingdom
A. Plantae. B. Animalia. C. Protista. D. Bacteria.
Which of the following complement pathways responds to bacterial products and results in the formation of antibodies?
A) The alternative complement pathway B) The lectin complement pathway C) The classical complement pathway D) All of the above
What is antibiotic resistance?
A. Bacteria that have become resistant to specific antibiotics B. Human cells have started to be harmed by specific antibiotics C. Bacteria have become more susceptible to specific antibiotics D. Human cells that have become resistant to specific antibiotics