Cellular biology-Why do we need to know this?. Bushong.
-
Upload
britney-bradford -
Category
Documents
-
view
220 -
download
3
Transcript of Cellular biology-Why do we need to know this?. Bushong.
![Page 1: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/1.jpg)
Cellular biology-Why do we need to know this?
![Page 2: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/2.jpg)
Bushong
![Page 3: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/3.jpg)
When an atom is ionized
Chemical binding properties changein large molecules: breakage or
relocation of molecules…become abnormal
Abnormal meansFunction improperlycease to function -impairment or
death of cell
![Page 4: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/4.jpg)
Damage is Reversible
Ionized atoms become neutral…How?
Molecules are mended by repair enzymes
Immediate response to radiationLatent response(Bushong) see Box 32-1
![Page 5: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/5.jpg)
RADIATION INTERACTS AT ATOMIC LEVEL
Atoms combine to form moleculesThe body is made of macromoleculesWhat is the definition of
macromolecules?
![Page 6: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/6.jpg)
With this kind of potential damage….
The government tends to get involvedCHAPTER 9 SHERER
![Page 7: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/7.jpg)
YOU ARE RESPONSIBLE FOR DIFFERENTIATING BETWEEN
ICRPNCRPUNSCEARNAS/NRC-BEIRNRCEPAFDAOSHA
![Page 8: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/8.jpg)
What is the smallest element of protoplasm?
The cell
Which of the following macromolecules contain enzymes for repair?
A) protein b) lipidsc) carbs d) nucleic acids
![Page 9: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/9.jpg)
MORE QUESTIONS
_____provides most of the cell’s energy
DNA and RNA are two types of these
What is function of lipids
Carbohydrates
Nucleic acids
store energy component of membrane protects against cold and
heat assists in digestive process components of substances
such as hormones
![Page 10: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/10.jpg)
Tissues are groups of ?
Organs are groups of ?
System is a group of?
An organism is?
Cells
tissues
organsa human
![Page 11: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/11.jpg)
CELLULAR ANATOMY
RibosomesMitochondriaEndoplasmic ReticulumLysosomesGolgi Apparatus
![Page 12: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/12.jpg)
RADIATION BIOLOGY
CHAPTER 6..an introduction-What do you already know?
![Page 13: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/13.jpg)
DO YOU REMEMBER BERGONIE AND TRIBONDEAU?
Pg 102 (Sherer)
![Page 14: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/14.jpg)
TWO TYPES OF CELLS
Somatic
Germ
![Page 15: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/15.jpg)
MALIGNANT CELLS
Divide abnormallyincreased amount of chromatinincreased amount of nuclear
materialnormal cells stay together (tissue)some malignant cells break away to
other tissues
![Page 16: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/16.jpg)
Direct effect
Where do you think the radiation hits to be given this name?
![Page 17: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/17.jpg)
INDIRECT EFFECT
What molecule to you think radiation hits?
Most interactions occur hereForms free radicals which are
chemical components that damage cells
Free radicals are a result of radiolysis of water
![Page 18: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/18.jpg)
FRACTIONATION
Dividing a dose of radiation into small amounts over a given time
![Page 19: Cellular biology-Why do we need to know this?. Bushong.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649e9e5503460f94b9f2fc/html5/thumbnails/19.jpg)
PROTRACTED DOSE
Dose delivered continuously but at a lower rate