AP Bio Unit 4 Test Review Game

Front

What is the role of tyrosine kinases in signal transduction pathways?

Back

Tyrosine kinases activate other proteins in the pathway.

Front

How does the myelin sheath affect signal transmission in neurons?

Back

The myelin sheath acts as an insulator and helps to speed up the transmission of electrical signals along the axon.

Front

What component of a feedback loop is represented by a stimulus?

Back

Stimulus.

Front

What is a common property of cancer cells besides uncontrollable division?

Back

Inability to undergo apoptosis.

Front

What type of cell communication occurs between two cells in direct contact?

Back

Juxtacrine signaling.

Front

Define signal transduction.

Back

The process by which a cell responds to substances or signals from its environment, often involving a series of molecular events.

Front

What is apoptosis?

Back

The process of programmed cell death that occurs in multicellular organisms.

Front

Explain the function of the myelin sheath.

Back

The myelin sheath insulates axons, allowing for faster transmission of electrical impulses.

Front

What is the difference between autocrine and paracrine signaling?

Back

Autocrine signaling involves a cell responding to signals it produces itself, while paracrine signaling involves communication between nearby cells.

Front

What is the significance of spindle fibers during cell division?

Back

Spindle fibers are essential for separating chromosomes during mitosis.