Unit 4 - AP Biology

Front

What are embryonic stem cells?

Back

Embryonic stem cells are undifferentiated cells that can develop into any cell type in the body.

Front

What does a similar signaling pathway for glucose uptake in mammals suggest?

Back

It suggests that species using the same signaling pathway are probably closely related by evolution.

Front

What is a positive feedback loop?

Back

A positive feedback loop is a process where an initial action leads to an increase in that action, amplifying the response.

Front

What are the key components of cell signaling?

Back

Cell signaling involves specificity, conformational changes, and proteins.

Front

During which phase of mitosis do chromatids condense?

Back

Chromatids condense during prophase.

Front

What is the role of stem cells in development?

Back

Stem cells play a crucial role in development by differentiating into various cell types.

Front

Define mitosis.

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells.

Front

What is the significance of cell signaling in multicellular organisms?

Back

Cell signaling is essential for communication between cells, allowing them to coordinate functions and respond to changes.

Front

What is the difference between positive and negative feedback loops?

Back

Positive feedback amplifies a response, while negative feedback reduces or inhibits a response.

Front

What is the function of glucose transporters in cells?

Back

Glucose transporters facilitate the uptake of glucose from the bloodstream into cells.