Prokaryotic cells and viruses
What is the main characteristic feature of prokaryotic cells?
They lack a nucleus
Which of the following is NOT a typical shape of prokaryotic cells?
Square
Viruses are considered as non-living entities because...
They cannot carry out metabolic activities on their own
What is the outer covering of a virus called?
Capsid
Which of the following is NOT a mode of viral transmission?
Photosynthesis
Which of the following is characteristic of bacteriophages?
They have a complex structure
What is the role of a viral envelope?
To protect the virus from the immune system
Which of the following is a characteristic feature of both prokaryotic cells and viruses?
Ability to evolve and adapt
What is the main mode of reproduction for prokaryotic cells?
Binary fission
Which of the following is a defense mechanism employed by bacteria against viral infections?
Activation of the immune system