Biology EOC Review

What is the role of wolves in an ecosystem when reintroduced?

• Wolves can eliminate weak animals from a prey population, thereby decreasing competition for natural resources.

• Wolves primarily hunt for food and do not affect the ecosystem significantly.

• Wolves help increase the population of deer by controlling their predators.

• Wolves are scavengers that feed on dead animals and do not impact living populations.

What is homeostasis?

• Homeostasis is the ability of an organism to maintain a stable internal environment despite changes in external conditions.

• Homeostasis refers to the process of evolution in organisms over time.

• Homeostasis is the mechanism by which organisms reproduce and grow.

• Homeostasis is the ability of an organism to adapt to new environments quickly.

What does tRNA deliver to ribosomes during translation?

• Nucleotides

• Amino acids

• Fatty acids

• Sugars

How do cells from the same organism have different shapes and functions?

• Cells differentiate by activating different parts of their DNA, leading to varied structures and functions.

• All cells have the same DNA, but they change shape based on their environment.

• Cells from the same organism are identical and do not have different shapes or functions.

• Cells can change their shape and function randomly without any specific process.

What is the significance of mutations in DNA?

• Mutations can lead to changes in protein structure and function, potentially resulting in different traits or diseases.

• Mutations are always harmful and lead to genetic disorders.

• Mutations have no effect on an organism's traits or health.

• Mutations only occur in non-coding regions of DNA.

What is ATP?

• A unit of energy in the cell.

• A type of protein found in the nucleus.

• A carbohydrate used for energy storage.

• A lipid that forms cell membranes.

What RNA bases pair with TACGAA during transcription?

• AUGCUU

• AUGCAG

• UACGAA

• CUGAAU

What is the difference between DNA and RNA?

• DNA is single-stranded and plays a role in protein synthesis.

• DNA is double-stranded and contains the genetic blueprint, while RNA is single-stranded and plays a role in protein synthesis.

• RNA is double-stranded and contains the genetic blueprint, while DNA is single-stranded and plays a role in protein synthesis.

• DNA and RNA are identical in structure and function.

What is cell differentiation?

• Cell differentiation is the process by which a less specialized cell becomes a more specialized cell type.

• Cell differentiation is the process of cell division that leads to the formation of identical cells.

• Cell differentiation is the process by which specialized cells lose their functions.

• Cell differentiation is the process of converting energy into cellular structures.

What is the role of enzymes in biological reactions?

• Enzymes act as catalysts to speed up chemical reactions in the body.

• Enzymes are used to break down nutrients into smaller molecules.

• Enzymes provide energy for chemical reactions to occur.

• Enzymes are responsible for transporting substances across cell membranes.