Bacteriophages - Video

What is the shape of a bacteriophage's head?

• Sphere

• Icosahedron

• Cube

• Cylinder

What is the shape of a bacteriophage's tail?

• Short and stubby

• There is no tail

• Long and fibrous

• Spherical

What makes a bacteriophage different from other viruses?

• It infects human cells

• It has a more complex structure

• It can survive without a host

• It specifically targets bacteria

How do phages contribute to the cycle of life in the oceans?

• By infecting fish

• By killing a significant portion of bacteria daily

• By killing harmful algae

• By producing oxygen

How do bacteriophages find their prey?

• By smell

• By sight

• Using receptors

• Randomly

How do bacteriophages kill bacteria?

• By consuming them

• By injecting genetic material

• By suffocating them

• By exploding them

What is the final step in a bacteriophage's attack on a bacterium?

• The bacterium explodes

• The phage dies

• The bacterium becomes immune

• The phage reproduces

What was the accidental discovery that helped fight bacteria about 100 years ago?

• Antiseptics

• Vaccines

• Phages

• Antibiotics

What are 'superbugs'?

• Viruses resistant to all vaccines

• Insects that spread diseases

• Robotic insects

• Bacteria resistant to most antibiotics

What was the key factor that led to the rise of superbugs?

• Introduction of phages into the environment

• Natural evolution of bacteria

• Overuse of antibiotics

• Overuse of vaccines