UCF Biology Chapter 2-4 with
100% correct answers ( graded
A+)
What is Adhesion - answer Clinging of one substance to another
(Ex: think of droplets of water)
What is surface tension - answer Level of difficulty involved in
breaking or stretching the surface of a liquid
What is high specific heat? - answer This means how successfully
a substance resists changing temperature. The amount of amount
of heat that must be gained or lost to change the temperature of
1 gram of a substance by 1 degrees Celsius
Why does water absorb much heat before its temp rises - answer
Due to hydrogen bond absorbing the heat increase
What does it mean to be hydrophobic - answer repelled by water,
water hating
hydrophilic - answer water loving
, acid - answer A substance that increases the hydrogen ion
concentration of a solution.
base - answer substance which gives off hydroxide ions (OH-) in
solution, reducing it in a solution
PH - answer is a reflection of the amount of acid in a solution. pH
declines as H ion concentration increases and increases as H ion
concentration decreases
What are buffers - answer Substances that minimize change in
the H ion or OH ion concentration.
Extremely essential in biological systems
What is Thalamide and what is it used for? - answer it is a drug
that treats HIV and Leprosy
-Expectant mothers should be advised not to take it because it
could cause birth defects for the child
What are anions? - answer An atom ionized that has a net
negative charge
What are cations? - answer A positively charged ion results
because the atom has lost electrons. Cations have more protons
in the nucleus than the electrons in the orbitals
100% correct answers ( graded
A+)
What is Adhesion - answer Clinging of one substance to another
(Ex: think of droplets of water)
What is surface tension - answer Level of difficulty involved in
breaking or stretching the surface of a liquid
What is high specific heat? - answer This means how successfully
a substance resists changing temperature. The amount of amount
of heat that must be gained or lost to change the temperature of
1 gram of a substance by 1 degrees Celsius
Why does water absorb much heat before its temp rises - answer
Due to hydrogen bond absorbing the heat increase
What does it mean to be hydrophobic - answer repelled by water,
water hating
hydrophilic - answer water loving
, acid - answer A substance that increases the hydrogen ion
concentration of a solution.
base - answer substance which gives off hydroxide ions (OH-) in
solution, reducing it in a solution
PH - answer is a reflection of the amount of acid in a solution. pH
declines as H ion concentration increases and increases as H ion
concentration decreases
What are buffers - answer Substances that minimize change in
the H ion or OH ion concentration.
Extremely essential in biological systems
What is Thalamide and what is it used for? - answer it is a drug
that treats HIV and Leprosy
-Expectant mothers should be advised not to take it because it
could cause birth defects for the child
What are anions? - answer An atom ionized that has a net
negative charge
What are cations? - answer A positively charged ion results
because the atom has lost electrons. Cations have more protons
in the nucleus than the electrons in the orbitals
