5.3 Regulation of the Cell Cycle

Proteins that bind to cells and stimulate cell division are called

• enzymes.

• kinases

• growth factors.

• carcinogens.

Tags

NGSS.HS-LS1-4

What is the term for the programmed death of cells?

• kinase

• cyclin

• carcinogen

• apoptosis

Two internal factors that are important in advancing the cell cycle are

• kinases and cyclins.

• hormones and enzymes.

• phosphates and enzymes.

• proteins and platelets

Tags

NGSS.HS-LS1-4

Which phrase best describes cancer?

• absence of cyclins

• multiple gene mutations

• uncontrolled cell growth

• presence of genetic defects

Tags

NGSS.HS-LS3-2

Substances known to produce or promote cancer are called

• carcinogens.

• kinases

• cyclins.

• malignancies.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Extra Credit: How is a benign tumor different from a malignant tumor?

• Malignant tumors do not spread; cells in a benign tumor break away and spread to other parts of the body

• Benign tumors perform the specialized functions needed by the body; malignant tumors do not.

• Malignant tumors exert pressure on surrounding tissues; benign tumors do not.

• Benign tumors do not spread; cells in a malignant tumor break away and spread to other parts of the body.