AP Biology Unit 4 Review

Front

What is osmoregulation?

Back

Osmoregulation is the process by which organisms regulate the water and electrolyte balance in their bodies to maintain homeostasis.

Front

What hormone is primarily responsible for osmoregulation in humans?

Back

Antidiuretic hormone (ADH) is primarily responsible for osmoregulation by promoting water reabsorption in the kidneys.

Front

What are the phases of mitosis in order?

Back

The phases of mitosis in order are: Prophase, Metaphase, Anaphase, and Telophase.

Front

What occurs during Anaphase of mitosis?

Back

During Anaphase, the sister chromatids are pulled apart to opposite poles of the cell.

Front

What is density-dependent inhibition?

Back

Density-dependent inhibition is a regulatory mechanism in which cell division slows down or stops when cells become crowded.

Front

Which cellular components are involved in density-dependent inhibition?

Back

Membrane proteins are involved in density-dependent inhibition by signaling when cells are in close contact.

Front

What type of feedback mechanism is involved when ADH is released during dehydration?

Back

The release of ADH during dehydration represents a negative feedback mechanism.

Front

What is the primary phase of the cell cycle where the cell spends most of its time?

Back

The cell spends most of its time in Interphase.

Front

What are the three stages of Interphase?

Back

The three stages of Interphase are G1 phase (Gap 1), S phase (Synthesis), and G2 phase (Gap 2).

Front

What is the role of insulin in the body?

Back

Insulin regulates blood glucose levels by facilitating the uptake of glucose into cells.