College Bio Fall Review

Front

What is the lysogenic cycle?

Back

A viral replication cycle where the virus integrates its genetic material into the host cell's DNA, remaining dormant until triggered to enter the lytic cycle.

Front

What is the lytic cycle?

Back

A viral replication cycle that results in the destruction of the host cell and the release of new virus particles.

Front

Define 'Flagship species'.

Back

Species that are used to raise awareness and promote conservation efforts, often because they are charismatic or appealing.

Front

What is homeostasis?

Back

The maintenance of stable internal conditions in an organism despite changes in the external environment.

Front

What does 'keystone species' mean?

Back

A species that has a disproportionately large effect on its environment relative to its abundance, playing a critical role in maintaining the structure of an ecological community.

Front

What is a 'prophage'?

Back

A viral genome that has integrated into the host cell's DNA during the lysogenic cycle.

Front

What is the significance of a short incubation period in viruses?

Back

It indicates that the virus replicates quickly, often through the lytic cycle, leading to rapid onset of symptoms.

Front

What happens during the 'attachment' stage of the viral life cycle?

Back

The virus binds to specific receptors on the surface of the host cell, initiating infection.

Front

Define 'autotrophic species'.

Back

Organisms that produce their own food through photosynthesis or chemosynthesis, such as plants and some bacteria.

Front

What is the role of a 'triggering event' in the lysogenic cycle?

Back

It activates the prophage to exit the host DNA and enter the lytic cycle, leading to the production of new virus particles.