Transcript 100pts

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400pts
What are the elements AND
ratio of those elements in
CARBOHYDRATES
CHO 1:2:1
100pts
What is the substance that
forms H+ (hydrogen ions)in
H20
•ACIDS
•
www.chem4kids.com
500pts
Atoms of
the same
element
with
different
numbers of
neutrons
are
called….
•isotopes
http://www-astronomy.mps.ohio-state.edu/~pogge/Ast161/Unit4/isotopes.gif
300pts
What bond shares electrons?
•Covalent
http://library.thinkquest.org/27819/media/covalent.gif
200pts
What do we call the large molecule
formed by lots of small ones?
• POLYMER or
Macromolecul
e
http://workbench.concord.org/web_content/unitV/images/polypeptide_sm.jpeg
500pts
A polar molecule has what
type of distribution of
charge?
• UNEQUAL
http://www.chemistry.org/portal/a/c/s/1/resources/ACS/ACSContent/wondernet/images/wngu_water01.gif
100pts
What protein speeds up chemical reactions?
Amino Acids or Enzymes
• Enzymes Enzymes
are needed to sustain life,
because most chemical
reactions in biological
cells would occur too
slowly or would lead to
different products without
enzymes.
http://en.wikipedia.org/wiki/Enzyme
200pts
What is the center of an atom?
• The Nucleus
http://www.loc.gov/rr/scitech/tracer-bullets/images/atomstructure.gif
400pts
A PEPTIDE bond is formed
between______ ____.
• Amino Acids (click again)
• Bonus 100pts – how many Amino Acids are there?
• 20 Essential (24 total)
300pts
What is the mixture called where
one substance is evenly
distributed throughout another?
•Solution
500pts
What is litmus paper?
• The ph paper (click again)
• Bonus 200 pts – What color does it turn
when it touches an acid?
•paper that indicates how acidic or basic an object or liquid
is. If the paper turns red when touched by the object or
liquid, it is acidic. If the paper turns blue, the object or liquid
is basic.
www.epa.gov/acidrain/site_students/glossary.html
400pts
Carbon-12, Carbon-13, and Carbon-14
are:
polymers or isotopes
• Isotopes –Forms
of the same chemical
element that differ only
by the number of
neutrons in their
nucleus.
www.eia.doe.gov/cneaf/nuclear/page/umtra/glossary.html Image:
http://www.atomicarchive.com/Physics/Images/isotopes.jpg
300pts
What type of bonding is
indicated in unsaturated lipids?
•Double bonds
• Unsaturated fats have one or more
double bonds that give them chemical
properties that are very useful to the
body.
http://images.google.com/imgres?imgurl=h
ttp://www.bastnet.com/fatfacts/images/cistrans_fat.gif&imgrefurl=http://www.bastnet.
com/fatfacts/ff3.html&h=260&w=159&sz=5
&tbnid=hO5jWc5SjIJ:&tbnh=107&tbnw=65&hl=en&start=16&
prev=/images%3Fq%3Ddouble%2Bbonds
%26svnum%3D10%26hl%3Den%26lr%3D
100pts
Name the 6 naturally occurring
elements essential to living
organisms
•CHNOPS
200pts:
What do we call the smaller
subunits that make up nucleic
acids…hint… they have 3 parts
• Nucleotides
http://www.chemsoc.org/exemplarchem/entries/2003/imperial_Burgoine/nucleotide.jpg
200pts
The overall
functioning of
our body is
called what?
• Metabolism
Santorio Santorio weighed himself
before and after a meal,
conducting the first controlled test
of metabolism
http://en.wikipedia.org/wiki/Image:SantoriosMeal.jpg
400pts:
The nucleus of an atom is made up of:
http://web.buddyproject.org/web017/web017/images/atom.JPG
• Protons and
Neutrons
300pts
What is the process of decomposition
involving splitting of a bond and
addition of the elements of water
called?
www.emsplace.com/ref/bcglossary.htm
HYDROLYSIS
500pts
What element do
proteins contain that
carbohydrates and
fats do not?
Nitrogen! Nitrogen is an
essential part of amino and nucleic
acids which makes nitrogen vital to
all life.
http://en.wikipedia.org/wiki/Nitrogen
100pts
TRUE or FALSE:
The various enzymes in our bodies
are proteins
• TRUE!
300pts
What is another name for
“electron cloud” where
electrons move?
• orbitals
500pts:
If one were to taste a base, how would
it taste:
a. sweet b. sour c. bitter d. salty
• Bitter -Bases taste bitter. There are very few food
materials that are alkaline, but those that are taste bitter. It is even
more important that care be taken in tasting bases. Again, NO
SCHOOL PERMITS TASTING OF LAB CHEMICALS. Tasting of
bases is more dangerous than tasting acids due to the property of
stronger bases to denature protein.
• The word 'sauer' in German means acid and is pronounced almost
exactly the same way as 'sour' in English. (Sauerkraut is sour
cabbage, cabbage preserved in its own fermented lactic acid.
http://www.bact.wisc.edu/lindquistjohn/324kraut.html ) Stomach acid is hydrochloric acid. Although
tasting stomach acid is not pleasant, it has the sour taste of acid.
http://www.chemtutor.com/acid.htm
200pts: List 2 acids and 2 bases
http://www.epa.gov/acidrain/site_students/images/phscale.gif
100pts:
What is this?
http://www.u.arizona.edu/~cmcleod1/lab2/water%20molecule%203.jpg
400pts:
What is the food source in
seeds?
http://www.mpimp-golm.mpg.de/geigenberger/forschung/bilder/fig4.gif
• Starch /
Carbohydra
tes