Bio 110

Question 1

What is radiobiology a study of?

Answer 1

Ionization radiation on biological tissue

Question 2

Early effect of radiation can occur within…

Answer 2

minutes or days after exposure

Question 3

Late effect of radiation can occur within…

Answer 3

months or years

Question 4

Radiation protection practices are set and assumes that small dose is….

Answer 4

harmful

Question 5

what molecule is abundant in human body and plays an important role in delivering energy to target molecule?

Answer 5

Water

Question 6

What macromolecule is rarest and most critical and radiosensitive?

Answer 6

Nucleic Acid

Question 7

What organelle provides channels for nucleus to communicate with Cytoplasm?

Answer 7

Endoplasmic Reticulum

Question 8

What organelle does the protein synthesis?

Answer 8

Ribosomes

Question 9

Which part of the cell is more radiosensitive than the cytoplasm?

Answer 9

Nucleus

Question 10

What, inside the nucleus, is the most radiosensitive target molecule in the human cell?

Answer 10

DNA

Question 11

what does the DNA give its messages to?

Answer 11

RNA

Question 12

what is the act of cell or cells reproducing + multiplying ?

Answer 12

Cell Proliferation

Question 13

at what phase of mitosis does the damage from the radiation can be seen?

Answer 13

Mitosis

Question 14

undifferentiated, precursor, or stem cells are the alternative names for….

Answer 14

Immature cells

Question 15

When are cells most radiosensitive?

Answer 15

when they are multiplying

Question 16

What cells are radiosensitive and what cells are radioresistant, according to Bergonie and Tribondeau

Answer 16

Stem cells = sensitive

Mature cells= radioresistant

Question 17

younger tissues and organs are….

Answer 17

rad sensitive

Question 18

tissues with HIGH metabolic activity are…

Answer 18

rad sensitive

Question 19

what law is the governing body for ALARA?

Answer 19

Law of Bergonie and Tribondeau

Question 20

what does Linear Energy Transfer measure?

Answer 20

the amount of the ionization radiation that travels through the pt tisse

Question 21

What occurs when LET increases?

Answer 21

Biologic response increases

Question 22

Means of measuring amount of damage caused by equal amount of different type of radiation is…

Answer 22

Relative Biologic Effectiveness

Question 23

RBE is _____ to LET

Answer 23

directly Proportional

Question 24

____kVp is standard against which all other forms of radiation are measured.

Answer 24

250

Question 25

How do you lessen the effectiveness of radiation?

Answer 25

stretch the radiation to deliver over period of time

Question 26

When a dose is delivered continuously at a lower dose rate….

Answer 26

Protracted

Question 27

When a dose is delivered at same dose rate, but in equal fraction (less effective than protracted)

Answer 27

Fractionated

Question 28

Recovery = ____+ _____

Answer 28

Intracellular repoar + Repopulation

Question 29

what is the theory that a little bit of radiation is good for you?

Answer 29

Hormesis

Question 30

Deterministic radiation vs Stochastic

Answer 30

Deterministic is early response after high exposure

Stochastic is late response from low radiation.