2022 Biology Final Exam Review Flashcardizz

Front

What happens to energy as it moves through a food chain?

Back

The energy decreases as it moves through a food chain.

Front

What is logistic growth?

Back

A growth pattern that has a period of rapid growth followed by a period in which growth levels off.

Front

What is a density-dependent limiting factor?

Back

A factor that affects population size in relation to the population's density, such as competition, disease, and predation.

Front

Which type of RNA carries amino acids to the ribosome?

Back

tRNA (transfer RNA) carries amino acids to the ribosome.

Front

What is a frameshift mutation?

Back

A type of gene mutation that results from the insertion or deletion of nucleotides, altering the entire amino acid sequence from that point forward.

Front

What is the difference between density-dependent and density-independent factors?

Back

Density-dependent factors depend on population size (e.g., competition), while density-independent factors affect populations regardless of size (e.g., natural disasters).

Front

What is exponential growth?

Back

A growth pattern where the population size increases rapidly without any limits.

Front

What is a limiting factor in an ecosystem?

Back

A resource or condition that limits the growth, abundance, or distribution of a population.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome for protein synthesis.

Front

What is the significance of the ribosome in cells?

Back

Ribosomes are the sites of protein synthesis, where mRNA is translated into amino acid sequences.