Bacteria & Viruses_IB (2025)

The use of what modern technology has cause the rise in resistant bacteria

• vaccines

• antibiotics

• pesticides

• antivirals

One important way to control the spread of viruses in through

• vaccines

• gene therapy

• the use of specific bacteria

• antibiotics

Which of these is characteristic of both viruses and bacteria?

• They get their energy from their environment.

• They can reproduce on their own.

• They can form crystals and become dormant.

• They contain proteins and nucleic acids.

A bacterium reproduces asexually by dividing to form two new bacterial cells. What is the name of the process by which bacteria reproduce?

• meiosis

• mitosis

• budding

• binary fission

Tags

NGSS.MS-LS3-2

What process is this?

• phagocytosis
• lytic cycle
• lysogenic cycle
• formation of antibodies

Which of the following is a viral infection?

• athlete's foot

• measles

• strep throat (streptococcus)

• tuberculosis

• toxoplasmosis

What is the name of the type of virus that has RNA that is copied into DNA inside host cell?

• Prophage

• Retrovirus

• Prions

• Viroids

Which of the following creates genetic variation among bacteria?

• binary fission

• conjugation

• transduction

• transformation

• mutation

What is the name of the disease-causing particle that does not contain DNA or RNA?

• Prophage

• Retrovirus

• Viroids

• Prion

When the viral DNA becomes active in the lysogenic cycle, which cycle does it enter?

• lytic

• stays in lysogenic

• cell cycle

• dormancy

• binary fission