teams team. the chemistry of life review atoms of the same element that differ in the number of...
TRANSCRIPT
Atoms of the same element that differ in the number of neutrons they contain are
known as �• isotopes
There are ____ electrons being shared between the Carbon
atoms. This is referred to as a ____ covalent bond.
• Six, triple
A ______ is a substance formed by the chemical combination of two or
more elements in definite proportions.
compound
The atomic structure of a
water molecule is useful in
demonstrating what kinds of
bonds? • Covalent bonds
How many neutrons does the diagram of
this atom show?• four
gkljfgjsdgkjdafgkjdfsgjkafgfadjkgadkjlgalkfadjladlghfadghfadlkj
gkljfgjsdgkjdafgkjdfsgjkafgfadjkgadkjlgalkfadjladlghfadghfadlkj
What kind of electron is in
the last shell or energy level of
an atom?
• valence
jvbjhvhvb
jvbjhvhvb
In a water molecule, the ______ end is
slightly positive while
the ______ end is slightly
negative.
hydrogen, oxygen
Because the number of positive ions is equal to the number of
negative hydroxide ions produced, water is _______.neutral
Water droplets on pine needles are good demonstration of _________ in that they are
different substances.
adhesion
As demonstrated by the picture, oil is known to be _________ in that it repels,
or hates, water.
Hydrophobic
Study the two beakers of solution.
Beaker B has (more, less or the same) amount of
solute and has (more, less or the same) amount of solvent than the
beaker A. same, more
A B
What property of water enables
this large tarantula to stay on the
surface?• Cohesion of water creates surface tension
What does pH measure?
(hint: think about what pH is an abbreviation
for)the concentration of H+ ions in solution.
A(n) ______ is a compound that produces hydroxide
ions (OH¯) in solution while a(n) _______ forms H+ ions
in solution.
base, acid
The particles in a (solution or suspension) can be filtered out while the
particles in a (solution or suspension) can not.
suspension, solution
Vinegar is to a(n) (acid or base) as ammonia is to a(n) (acid or base).
Acid, base.Acetic acid is the main component in vinegar.
The strong acid hydrogen fluoride (HF) can be
dissolved in pure water. Will the pH of the solution be greater or less than 7.0
and why?Less than 7.0 because water is already neutral and it will now be a weak acid.
Galactose, fructose and glucose are all examples of ________ in that they are
single sugar molecules.monosaccharides
Galactose is a component of milk!
What is the metabolic process by which the ‘breaking down’ of complex molecules
occurs?Catabolism
fdjnfaskdjfnasjdfabfdljkanfdj
Cellulose is a polysaccharide found in ______ that provides strength.
plants
glucoseglucose
glucoseglucose
glucoseglucose
glucoseglucose
cellulose
Lipid A is a _____ fatty acid because it does not have double bonds.
• saturated
fodjndkfngadf
fodjndkfngadf
A
B
Hemoglobin is the iron-containing
oxygen-transport metalloprotein in
the red blood cells of vertebrates. What
step of protein formation does it
demonstrate?• Quarternary or 4°
Lipids such as olive oil, which
contains ________ fatty
acids, tend to be liquid at room temperature.
unsaturated
Examples of foods containing a high proportion of __________
_________ include cream, cheese, butter, and ghee; suet,
tallow, and lard.Saturated fat
In the amino acid diagram, the red circle is the _____ group while the
blue circle is the ______ group.
amino,
carboxyl
In protein structure, what two levels are missing below in order following the
Primary structure?
Secondary and tertiary
kdjbfsafksadbfkab
kdjbfsafksb
________?_____
_______?_____
When the level of glucose in your blood runs low, glycogen is
released from your liver. It is referred to as an animal starch.
This would make it a __________ in that it is made of many sugar
units.
polysaccharide