Biology Quiz - Prokaryotes

Which of the following terms is defined as the process by which a single organism divides into two parts, each of which becomes a separate organism?

• Autotrophic

• Binary fission

• Aerobic

• Prokaryote

• Heterotrophic

Name the 3 Domains of life.

• Bacteria, Archaea, Eukarya

• Animalia, Plantae, Fungi

• Protista, Monera, Plantae

• Eukaryota, Prokaryota, Archaea

In what kinds of environments would you find bacteria and archaea?

• Extreme environments such as hot springs and salt lakes

• Only in human bodies

• Only in freshwater lakes

• Only in deserts

Which of the following best describes the general characteristics of bacteria and archaea?

• Both are prokaryotic and lack a nucleus.

• Both have a complex cellular structure with a nucleus.

• Bacteria are prokaryotic, while archaea are eukaryotic.

• Archaea have a nucleus, while bacteria do not.

Bacteria are classified in terms of shape as:

• Cocci, Bacilli, and Spirilla

• Cocci, Bacilli, and Fungi

• Cocci, Viruses, and Spirilla

• Cocci, Bacilli, and Algae

How do they reproduce?

• Sexually

• Asexually

• Both sexually and asexually

• None of the above

Which of the following describes how bacteria increase their genetic diversity?

• Through binary fission

• By acquiring genetic material from other bacteria

• By remaining genetically identical

• Through mitosis

Which of the following describes some economic and ecological importance of bacteria?

• Bacteria are used in the production of antibiotics and help in nutrient cycling.

• Bacteria are harmful pathogens that cause diseases.

• Bacteria have no role in the environment.

• Bacteria are only found in extreme environments.

Most bacteria are:

• harmful to humans

• harmless to humans

Which of the following steps is involved in preparing a bacterial culture based on our Bacterial Culture exercise?

• Inoculating the bacteria into a growth medium

• Heating the bacteria to 100 degrees Celsius

• Freezing the bacteria

• Exposing the bacteria to direct sunlight