Sem 1 Final Review Biology

Front

What is the active site of an enzyme?

Back

The active site is the region on an enzyme where substrate molecules bind and undergo a chemical reaction.

Front

What is carrying capacity (K) in an ecosystem?

Back

Carrying capacity (K) is the maximum population size of a species that an environment can sustain indefinitely without being degraded.

Front

What type of symbiosis occurs when both species benefit from the relationship?

Back

Mutualism is a type of symbiosis where both species involved benefit from the interaction.

Front

At what trophic level do primary consumers operate?

Back

Primary consumers operate at the second trophic level, feeding on producers (plants).

Front

What is logistic growth in population ecology?

Back

Logistic growth is a model of population growth that shows how a population grows rapidly at first and then levels off as it reaches carrying capacity.

Front

Define mutualism in ecological terms.

Back

Mutualism is a symbiotic relationship where both organisms benefit from the interaction.

Front

What is the difference between a keystone species and a primary consumer?

Back

A keystone species has a disproportionately large effect on its environment relative to its abundance, while a primary consumer is an organism that eats producers.

Front

What is the lag phase in population growth?

Back

The lag phase is the initial period of slow growth in a population before it begins to grow exponentially.

Front

What role do producers play in an ecosystem?

Back

Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is the significance of the exponential growth phase in a population?

Back

The exponential growth phase is characterized by rapid population increase when resources are abundant.