What Causes the Decrease in the Amount of Cyclin at a Specific

question 54

Multiple Choice

What causes the decrease in the amount of cyclin at a specific point in the cell cycle?

• A) an increase in production once the restriction point is passed
• B) the cascade of increased production once its protein is phosphorylated by Cdk
• C) the changing ratio of cytoplasm to genome
• D) its destruction by a process initiated by the activity of its complex with a cyclin
• E) the binding of PDGF to receptors on the cell surface

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Definitions:

Innate Immunity

The first line of defense in the immune system, comprising nonspecific responses to pathogens.

Increased Blood Flow

The augmentation of blood volume moving through blood vessels in a specific area of the body, often in response to a need for increased oxygen and nutrient supply.

Innate Immunity

The initial protective barrier in the immune system, made up of physical, chemical, and cellular mechanisms against pathogens, which exist naturally from birth.

Capillaries

Tiny blood vessels that connect arteries and veins, facilitating the exchange of water, oxygen, carbon dioxide, and other substances between blood and tissues.