Radiation Protection CH 6 Test PT 2 Flashcards Preview

Radiography Spring 2016 > Radiation Protection CH 6 Test PT 2 > Flashcards

Flashcards in Radiation Protection CH 6 Test PT 2 Deck (19):
1

What does the substance protoplasm carry?

the complex process of metabolism, the reception and processing of food and oxygen, and the elimination of waste

2

what the biomolecules that comprise protoplasm are formed from

24 elements with the 4 primary being carbon, hydrogen, oxygen, and nitrogen

3

what are the 2 most important inorganic substances

water and mineral salts (electrolytes)

4

water is the most abundant

inorganic compound in the body

5

know the 4 major classes of organic compounds

proteins, carbohydrates, lipids, and nucleic acid

6

what proteins are essential for

growth, the construction of new body tissue and the repair of injured or debilitated tissue

7

what is the primary function of a carbohydrate?

to provide fuel for cell metabolism

8

know the 2 types of nucleic acid

DNA and RNA

9

Why DNA is sometimes referred to as the master chemical

it contains all the information necessary for cell replication and regulates all cellular activity to direct protein synthesis

10

know what DNA is composed of

two long sugar phosphate chains which twist around each other in a double-helix configuration and are linked by pairs of nitrogenous organic bases at the sugar molecules of the chain to form a tightly coiled structure resembling a twisted ladder or spiral staircase

11

know what chromosomes are composed of

protein and DNA

12

what genes are the basic unit for

hereditary

13

know what inorganic compounds are found inside the body

acids, bases, and salts

14

what is the primary inorganic substance contained in the human body

water

15

be able to describe the difference of the function of water within the call and outside the cell

INSIDE: Is indispensable for metabolic activities it is the basis for them also acts a solvent

OUTSIDE: functions as transport vehicle for materials, cell uses, and eliminates the water, and is responsible for maintaining a constant body core temperature

16

know what cell membranes are made from

lipids and proteins

17

what is the function of the cell membrane

functions as a barricade to protect cellular contents from the outside environment, and it controls the passage of water, and other materials into and out of the cell

18

know the 2 types of cell division that occur within the body

mitosis and meiosis

19

know what must happen before a male and female germ cell unite to produce a new organism

the number of chromosomes in each must be reduced by half to ensure that the daughter cells formed when they unite will contain only the normal number of 46 chromosomes