week 3

Question 1

during ionisation, water molecules disrupt the ionic bonds of a solute & a mixture of ions is produced . this ion is called?

Answer 1

electrolytes

Question 2

if a molecule has 2 equal and opposite electrically charged poles separated by a small distance it is called?

Answer 2

dipolar

Question 3

in an aqueous solution cations move toward ?

Answer 3

anions

Question 4

in an aqueous solution sodium moves towards?

Answer 4

chloride

Question 5

a solution with equal no. of hydrogen ions and hydroxide ion is ?

Answer 5

neutral

Question 6

is a pH of 6 least or more acidic?

Answer 6

least

Question 7

a substance with a pH 7+ is called

Answer 7

alkaline

Question 8

an important buffer in the body is a- NaCl b-NaOH c-HCL d-NaHCO3

Answer 8

d

Question 9

in the body an inorganic compound serves as what ?

Answer 9

buffer

Question 10

hydrophilic moelecules associate with what molecule?

Answer 10

water

Question 11

an excess of H ions in the body fluids can do what ? a-break down chemical bonds b-change shape or large complex molecules c-distrupt tissue function d- all of above

Answer 11

d

Question 12

an inorganic compound when place in water, dissociates 99% forming H ions and anions. what type of acid would it be ?

Answer 12

strong

Question 13

an acid has a pH level of what?

Answer 13

less than 7

Question 14

__ is a product of the reaction of an aicd with a base

Answer 14

salt

Question 15

if solution A has a pH of 7.48 and 7.39 which one has a higher concentration og H ions

Answer 15

solution b

Question 16

a common buffer found in extracellular fluid a-glucose b-bicarbonate ion c-sodium ion

Answer 16

b

Question 17

what is the normal range of pH for blood

Answer 17

7.35-7.45

Question 18

glucose is the only source of energy for this organ

Answer 18

brain

Question 19

a complex carb that we cannot digest

Answer 19

cellulose

Question 20

this hormone increases the transport of gluose in cells

Answer 20

insulin

Question 21

the structural lipid molecule that is the chief component of cell membrane

Answer 21

phospholipid

Question 22

used universally by all cells in the body

Answer 22

glucose

Question 23

an important component of cell membranes and precursor of sex hormones

Answer 23

cholesterol

Question 24

glucose + glucose =

Answer 24

maltose

Question 25

20 carbon fatty acids found in cell membrane

Answer 25

eicosanoids

Question 26

glucose + fructose =

Answer 26

sucrose

Question 27

contained by molecules unique to living systems

Answer 27

carbon

Question 28

the fluid portion of blood

Answer 28

plasma

Question 29

excess H+ in the body fluid (low pH)

Answer 29

acidosis

Question 30

solutions that have equal H+ & OH - concentration

Answer 30

neutral

Question 31

an inorganic compounds that contain cations other than H+ and anions other then OH-

Answer 31

salts

Question 32

excess OH- in fluid ( high pH)

Answer 32

alkalosis

Question 33

the concentration of H+ ( H ions) in a solution

Answer 33

pH

Question 34

tissue that carries less water than muscle tissue

Answer 34

adipose

Question 35

the fluid in the spaces between our cells

Answer 35

interstitial

Question 36

humans that have 73% water

Answer 36

infants