radbio ewan

Question 1

Energy transfer can be done by?

Answer 1

• doing work
• heat transfer

Question 2

different types of energy transfer

Answer 2

1. Chemical
2. Electrical
3. Mechanical
4. Nuclear
5. Radiant
6. Thermal

Question 3

What is the energy stored in a specific object or molecule?

Answer 3

potential energy

Question 4

What is the energy possessed by an object in motion?

Answer 4

kinetic energy

Question 5

What is energy transfer by doing work?

Answer 5

requires an agent exert a force on an object over a distance when work is done, energy is transferred from the agent to object, which results in a change in the objects motion

Question 5

What is the Energy transfer by direct contact that occurs when molecules hit against each other; best in metals.

Answer 5

conduction

Question 6

what is the energy transfer from warmer object to cooler object?

Answer 6

heat transfer

Question 7

What are the types of heat transfer?

Answer 7

• Conduction
• Convection
• Radiation

Question 8

What is transfer is the movement of heat by a fluid; heat is carried by currents?

Answer 8

convection

Question 9

radiation heat transfer

Answer 9

99% heat
1% radiation

Question 9

What is the transfer of heat by electromagnetic waves; does not need matter to transfer?

Answer 9

radiation

Question 10

What is radiation energy transfer?

Answer 10

Energy emitted as photons or EM waves; doesn’t need a medium.

Question 11

What types of photons are involved in radiation energy transfer?

Answer 11

Alpha, gamma, neutron, beta, x-ray

Question 12

What is diathermy?

Answer 12

Use of non-ionizing radiation for therapeutic purposes like increasing blood flow in stroke patients.

Question 13

Physical factors that affect radiosensitivity

Answer 13

• Linear energy transfer (LET)
• Relative biologic effectiveness (RBE)

Question 14

What is the measure of energy transfer rate from ionizing radiation to soft tissue?

Answer 14

LET

Question 15

What is the ratio of the dose of standard radiation necessary to produce a given effect to the dose of test radiation needed for the same effect?

Answer 15

RBE

Question 16

what is the most sensitive part of our body in radiation?

Answer 16

Gonads

Question 16

How are LET and RBE related?

Answer 16

Directly proportional kasiiii
High LET = High RBE

Question 17

high absorption = low energy level
high scattering = high energy level
high transfer = equal energy level

Answer 17

walang sagot intindihin mo lang letse ka

Question 18

2 ways of LET

Answer 18

• Fractionation
• Protraction

Question 19

the dose is continuously delivered to the patient and divided per session

Answer 19

Fractionation

Question 20

the total duration treatment it depends on the no, of days between the 1st and last session

Answer 20

Protraction

Question 21

isa pa to intindihin mo lang relationships letse
TATAAS O BABABA

Answer 21

x-ray: high energy, high penetrability, low LET

gamma: high energy, high penetrability, low LET

alpha: high energy, low penetrability, high LET

beta: low energy, high penetrability, high LET

Question 22

Biologic Effects that Affect Radiosensitivity

Answer 22

* Oxygen effect * Age * Recovery * Chemical energy * Hormesis

Question 23

if there is presence of oxygen in tissue, our body will be radiosensitive OXYGEN INCREASES RADIOSENSITIVITY

Answer 23

SO BASTA PAG MAY PRESENCE OF OXYGEN, RADIOSENSITIVE NA kung walang oxyge, edi radioresistant

Question 24

OXYGENATED BLOOD – abundant presence of oxygen in the body carried by blood

Answer 24

= high radiosensitive FROM THE WORD ITSELF, "OXYGENATED" EDI RADIOSENSITIVE TALAGA

Question 25

ANOXIC BLOOD – no presence of oxygen in our blood

Answer 25

= radioresistant NO PRESENCE RAW EH EDI WALA ATI

Question 26

HYPOXIC BLOOD – insufficient supply of oxygen in the blood

Answer 26

= low radiosensitive KASI NGA INSUFFICIENT DAW, KULANG DAW NG OXYGEN

Question 27

it is the production of cells division

Answer 27

proliferation

Question 27

younger cells are more radiosensitive than more mature cells - toddlers = high radiosensitive - senior citizen = low radiosensitive

Answer 27

MEANING PAG MAS BABY ANG EDAD, MAS RADIOSENSITIVE PAG GURANG NA EDI HINDI NA MASYADO RADIOSENSITIVE

Question 28

what age ang medyo radioresistant?

Answer 28

18-30 years old

Question 29

2 chemical agent

Answer 29

* radiosensitizers * artificial radiosensitizers

Question 30

it is the phenomena in which a harmful substance gives a stimulating and beneficial effects to the living organisms when the quantity of the harmful substance is small

Answer 30

hormesis

Question 31

Where does radiation damage start?

Answer 31

At the molecular level, especially to DNA

Question 32

What is the main molecule involved in radiation interaction in the body?

Answer 32

Water

Question 33

irradiation outside of cell/body, considerable radiation dose is required to produce measurable effect

Answer 33

vitro

Question 34

irradiation within the body, more radiosensitive in their natural state

Answer 34

vivo

Question 35

HAHAHAHAAH

Answer 35

80% water, 15% protein, 2% lipids, 1% carbohydrates, 1% nucleic acid, 1% other