The Biology Spot: The Biology Classroom
The Microbiology Classroom--------- Home -------- The Physiology Classroom
|
In-class |
Homework |
Monday, September 15 (day 4) FOR
BIO 1 and BIO 3(QUAD POD) 1) Review of basic chemistry discussion 2) Building Carbohydrates Models 3) Go over ecology of life quiz NO
CLASS FOR BIO 2 |
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Tuesday, September 16(day 5) FOR ALL BIO CLASSES 1) Lipid, Proteins and Nucleic Acid discussion 2) Go over Salsa Analysis Questions 3) Time to wrap-up carbohydrate building sheet |
FOR
ALL BIO CLASSES 1)
Read Section 6.3 ( pages 161-167) due Wed. (9/17) 2)
Complete Worksheet "Chemistry of Life" due Wed. (9/17) |
Wednesday, September 17 (day 6) 1) Building Lipid and Protein Models 2) Work on worksheets that correspond to models
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FOR
ALL BIO CLASSES
1)
Carbohydrate building
sheet due THURS. (9/18) 2)
Study carbohydrates
and lipids for upcoming test |
Thursday, September 18 (day 7) 1) Continue working on building lipid and protein models 2) Continue working on worksheets that correspond to models |
FOR
ALL BIO CLASSES 1)
Protein and lipid
building sheet due FRI. (9/19) 2)
Study proteins and
nucleic acids for upcoming test |
Friday, September 19 (day 8) 1) Wrap-up organic chemistry discussion 2) Work on comparison chart of the four major organic compounds |
FOR
ALL BIO CLASSES 1)Finish
up comparison chart of 4 major organic compounds due MON (9/22) 2)Complete
review sheet for chemistry of life due MON (9/22) 3)
Study for test |
NEXT
TUESDAY, SEPTEMBER 23
Microbe
of the week:
What would make a rat think it could take on cat? Scientists have discovered that a certain microbe, Toxoplasma gondii (tocks-oh-plaz-ma gone-dee-ee), causes rats to lose their typical fear and avoidance behavior. It also makes them act hyperactive, which makes it more likely that they’ll attract a passing cat's attention.
Why would a microbe cause its host to act suicidal? T. gondii is a parasitic protozoan. Parasites are basically creatures
that mooch off others. Parasite protozoa are microscopic moochers.They often have very complex lives, moving among many hosts andenvironments. In the case of T. gondii, the cat is its ultimate host.That is, the only place the parasite can reproduce sexually is in cats’guts. T. gondii does not seem to cause any illness or harm to cats.
On the other hand, rats, other mammals and birds are in-between hosts. The protozoan reproduces in these hosts by repeatedly
dividing in two. T. gondii can cause illness if the host’s immune defenses are weakened.
-Information from "Stalking the Mysterious Microbe" web-site: http://www.microbe.org/news/Tgondii.asp
Quote
of the week:
"Great
opportunities to help others seldom come, but small ones surround us every
day."
-Sally Koch
Question of the week: How long does it take for food to digest?
Answer to last week's question:
What
tree has a caffeine content twice that of coffee?
Its fruit is a star-shaped follicle with wight seeds, and these seeds, or
nuts, contain an essential oil and a glucoside, which are used to make a heart
stimulant. Combining its fruit with
the extract of another plant, it is used in manufacturing what popular plant?
Combining
the caffeine rich nuts from the tree Cola acuminata with an extract from coca
will produce the main ingredients in Coca-cola.
The heart stimulant derives from the oil kolanin.
The cola tree is a native of West Africa, but it also grows in Jamaica,
Brazil and India.
Unit
3: Chemistry of Life: Biochemistry (Chapter 6)
CONCEPTS
: BASIC CHEMISTRY (Section 6.1)
-6
most common elements in living things
-atomic
structure (proton, neutron, electron)
-atomic
number vs. atomic mass
-isotopes
-chemical
equations ( reactants > products)
-ions
and how they are formed
-element
vs. compound
-ionic
vs. covalent bonds
-pH
(acid vs. base)
CONCEPT:
ORGANIC CHEMISTRY ( Section 6.3)
-organic
vs. inorganic compounds
-dehydration
synthesis
-hydrolysis
4
MAIN CLASSES OF ORGANIC COMPOUNDS
*for each class make sure you know the elements involved,
their structure, special chemical groups, monomers, polymers, how they are
formed, how they are broken, their
functions in living things and some example compounds found in that class)
-CARBOHYDRATES:
(monosaccharides, disaccharides, polysaccharides, hydroxide group)
-LIPIDS:
( fatty acids, glycerol, carboxyl group, hydroxide group, saturated vs.
unsaturated fats)
-PROTEINS:
(amino acids, amino group, carboxyl group, variable group, peptide bond)
-NUCLEIC
ACIDS: (nucleotides( sugar, phosphate and nitrogen base), DNA, RNA, ATP,
gene, hydroxide group)