Download Chapter 3 Essays

Chapter 3 Essays
ESSAY #1
Nucleic Acids p. 47
• Sugar + phosphate + nitrogenous base
Essay #2
Was the only person ever
to win two unshared Nobel
prizes:
for chemistry in 1954
and for peace in
1962
Linus Pauling
• Found how
hemoglobin carries
oxygen
• high doses of vitamin
C are effective
against colds and
other illnesses.
• Ban on nuclear
testing
ESSAY 3a: CONTRAST SWEETS
p. 38
• Glucose
bind to taste
receptors
on tongue
• Sucralose
bind more
tightly to taste
receptors on
tongue
3b CONTRAST SWEETS p. 38
• Glucose
• Sucralose
As compared
to sucrose:
slightly
sweeter
• As compared
to sucrose:
600 times
sweeter
3c CONTRAST SWEETS p. 38
• Sucralose
• Glucose
•
Artificial
• Natural
• Sucralose mixed with
maltodextrin and
dextrose
Aspartame
•150 times more sweet
than glucose
10 pointers
• Structural-hair, skin, nails
Storage-eggs, nuts
Signal-hormones
Contractile-muscle fibers
Defensive-antibodies
Enzymes-speed up reactions
Transport-hemoglobin carrying oxygen
10 pointer
• Anabolic steroids - artificial variant of the male
hormone, testosterone
• Used to build muscle and bone
• Negatives:
mood swings (“roid rage”)
Depression
high blood pressure
reduced sex drive
enlarged breasts
shrunken testicles
acne
women-beards
Infertility
liver cancer
Anabolic Steroids Abusers
•
•
•
•
•
Barry Bonds
Marion Jones
Mark McGuire
Jason Giambi
Mike Tyson
How an orb spider makes its web
• Spokes
• Dry
• Inelastic
proteins
• “Spiraling
strand”captures insects
• Wet
• Sticky
• Highly elastic
(stretch up to
4X’s)
Uses for Synthetic Web
wear-resistant shoes and clothes
-stronger ropes, nets, seatbelts, and
parachutes
-rust-free panels and bumpers for automobiles
-improved sutures and bandages, artificial
tendons and ligaments, and supports for
weakened blood vessels.
-soldiers and police long for bulletproof vests
Tether ropes for astronauts
Sketch how the web is made