Which One of the Following Statements Is TRUE Regarding Photodynamic

question 50

Multiple Choice

Which one of the following statements is TRUE regarding photodynamic therapy?

• A) It involves the use of light-sensitive drugs to target a cancer.
• B) It uses magnets to attract beads coated with a chemotherapeutic drug to a cancer.
• C) It is used for the treatment of cancers of the breast and ovary.
• D) It inhibits angiogenesis.
• E) It involves the use of antibodies to deliver treatments to a cancer.

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Definitions:

Gastrulation

Gastrulation is a phase early in embryonic development during which the single-layered blastula is reorganized into a multilayered structure called the gastrula.

Germ Layers

In animals, three embryonic tissue layers: endoderm, mesoderm, and ectoderm

Echinoderms

A phylum of marine animals characterized by radial symmetry, a calcareous skeleton, and a water vascular system, includes starfish and sea urchins.

Primitive Groove

A depression or furrow on the surface of an early embryo that is involved in the process of gastrulation, leading to the development of different layers.