7-8 weeks // Molecular Radiobiology

Question 1

If the initial ionizing event occurs on the target molecule.

Answer 1

Direct Effects

Question 2

If the initial ionizing event occurs on a distant, noncritical molecule and the energy is transferred to the target molecule.

Answer 2

Indirect Effects

Question 3

In irradiation of macromolecules, it occurs outside the body or outside the cell.

Answer 3

In Vitro

Question 4

In irradiation of macromolecules, it occurs within the living cell.

Answer 4

In Vivo

Question 5

Three Types of Irradiation of Macromolecules in Vitro

Answer 5

Main Chan Scission, Cross-linking and Point Lesion

Question 6

In three types of irradiation of macromolecules in vitro, this is the breakage of the backbone of the long-chain macromolecule.

Answer 6

Main Chain Scission

Question 7

It determines the degree of main chain scission.

Answer 7

Measurement of Viscosity

Question 8

In three types of irradiation of macromolecules in vitro, it is the process of side spurs created by irradiation and attached to a neighboring macromolecules or to another segment of the same molecule.

Answer 8

Cross Linking

Question 9

Its effect increases the viscosity of the macromolecular solution.

Answer 9

Cross Linking

Question 10

In three types of irradiation of macromolecules in vitro, it is any change that results in the impairment or loss of function at the point of a single chemical bond.

Answer 10

Point Lesions

Question 11

In free radicals, it is the poisonous to the cell and therefore acts as a toxic agent.

Answer 11

Hydrogen Peroxide (H202)

Question 12

In free radicals, it is the principal damaging product of radiolysis of water.

Answer 12

Hydroperoxyl Radical (HO*2)