Welcome to Fall 2022
Dear Fall M-20 Students:
WELCOME TO MICROBIOLOGY at LACC!
Monday, you will receive an email alerting you that our Syllabus and Canvas sight is active. Please peruse the website (click on the links) and look over how the course is organized: HINT: BY EXAM number..
Until then there are a few things that you could do now to prepare; some of them may be found on my "old" website" at hicksmicro@blogspot.com (ignore any not safe or unsafe "site" notifications).
Lecture: YOU DO NOT NEED TO BUY A TEXTBOOK or LAB MANUAL! Go to YouTube and subscribe to our hicksmicro YouTube site. Read page 1 of the old website . "My philosophy of Education & How to get an "A" in Microbiology" then move down the page & click on the BLUE button for the MicroDropBox. Inside MicroDropbox go to "Tests & Ancillary Materials." Download a copy of an old edition of our Textbook "Microbiology: Principles & Explorations" by Black and read the textbook Introduction, Chapter 1 "Why Study Microbiology" & Chapter 2 a review of Chemistry - dont panic! We just need you to know basics like: atoms, elements, the Periodic Chart, bonds, molecules & compounds. This is OYO (On your own - no lecture but it will be expected).
Laboratory Needs:
1. Go to the LACC Bookstore and purchase the Microbiology-20 Lab Packet.
2. Buy a long sleeve and long torso (to the knee area) WHITE cotton or cotton mix Lab coat (on Amazon for $10 and up). REMEMBER BECAUSE OF BUNSEN BURNERS, IT GETS HOT IN LAB EVEN WITH A/C... the more cotton in the coat the better it "breaths" the more poly material the more you will sweat.
3. Buy a set of colored Pencils
4. Buy a can of "Bon Ami" scouring powder (or "Bartender's Friend" NO OTHER BRANDS, in supermarkets near Ajax etc.
5. Buy a Small hand-held battery fan
6. Buy a small box of matches.
7. Buy a binder for 3 holed papers - NOT A BINDER WITH METAL RINGS, 1 the can hold 1 inch of handouts and worksheets ands has metal tabs the you "bend" to close it.
8. Buy a small bottle of hand sanitizer
YOU DO NOT NEED TO BUY LAB FACEMASKS,FACE SHIELDS,or a LAB MANUAL AS WE PROVIDE THEM for you as "loaner materials."
Thanks for
OPTIONAL: a box of Nitrile Gloves (that fit you) a broad/wide point (NOT FINE POINT) BLACK SHARPEE that clicks closed/no cap.
Thanks for taking my class! if you are dedicated and keep trying I will "drag you" to success in Microbiology 20!
Emails: hicksmicro@gmail.com in the Subject put last name 1st ID # and a "hook" that indicates the question
Text: 213-246-3783 The same as above regarding the info 1st in the text
STAIN GAME ANSWERS 8/22/22
NEW ANSWERS - STAIN GAME!
A - Endospore positive large pink rod cells (remember that makes it Gram Positive & Acid Fast Negative by memorization) with holes and lots of green oval endospores (not cells) which take up the malachite green when cooked because endospore coats are hard to stain like lipids and capsules. ONLY BACILLUS & CLOSTRIDIUM are ENDOSPORE POSITIVE.
B - Acid Fast (AF positive & remember AF+ is Gram positive) small hot pink and baby blue vegetative rods (meaning cells and thus not endospores) that are 2 different colors but the same size; some of the cells' lipids got enough HEAT to take the carbolfuchsin and turned hot pink and some didn't and stayed baby-blue this is MYCOBACTERIUM as only Mycobacteria & Nocardia are AF positive
C - Endospore negative small pink and green rods the same size; the pink rods are too small to have "hole" and if you could see them, they don't. also the green items are NOT oval, they are rods. When cooking some of the lipid covered rods took the malachite green and some didn't, they took the pink; MYCOBACTERIUM again using the Endospore differential stain
D - Acid Fast (AF positive) small hot pink and baby blue vegetative rods (meaning cells and thus not endospores) that are 2 different colors but the same size; some of the cells' lipids got enough HEAT to take the carbolfuchsin and turned hot pink and some didn't and stayed baby-blue this is MYCO-BACTERIUM. The reason that #B above and this one #D look a bit different is how hot the primary stain was cooked; the hotter the more hot pink. Remember, that you must have small rods and at least 1 hot pink & 1 baby-blue of the same size to be AF positive NOT HOT PINK OVALS!
E - Non-acid Fast (AF negative) large baby-blue vegetative rods with hot pink endospores; this is BACILLUS. THE CELLS STAIN BABY-BLUE; endospores are NOT cells - only DNA inside a Ca++ ion spore coat with no other cell parts - ENDOSPORES ARE NOT ALIVE
F - Gram positive small rods (actually Gram variable on the positive side); this is MYCOBAC-TERIUM again using the Gram different differential stain
G - Endospore positive large pink rod cells (remember that makes it Gram Positive & Acid Fast Negative by memorization) with holes and 1 or 2 green oval endospores (not cells) which take up the malachite green when cooked because endospore coats are hard to stain like lipids and capsules. ONLY BACILLUS & CLOSTRIDIUM are ENDOSPORE POSITIVE. THIS STAIN COULD ALMOST BE GRAM NEGATIVE LARGE RODS WITH HOLE BUT! There is some visible green GARBAGE VIABLE WHICH MAKES IT AN ENDOSPORE STAIN
H - Gram positive large hot dog-shaped rods with lots of pink irregularly shaped pieces and oval pink endospors....MAJORITY COLOR THEN, IF NO SURE "WHAT IS ON TOP"
I - Gram positive cocci
J- Non-Acid Fast (AF-) baby blue large rods; see holes?what does that mean is the result for this microbe on Gram and Acid Fast staining?
K- Gram positive large hot dog-shaped rods with faint oval pink endospores....MAJORITY COLOR THEN, IF NO SURE "WHAT IS ON TOP"
L - Endospore positive large hot dog-shaped pink rods lots of holes and a few oval pink endospores...green garbage seen in upper areas
M & N - Endospore negative very small (!) pink and green rods the same size; no holes; no ovals. When cooking some of the lipid covered rods took the malachite green and some took the pink; MYCOBACTERIUM again using the Endospore differential stain
O - Acid Fast (AF+) small hot pink and baby-blue rods the same size; MYCOBACTERIUM
P - Gram negative small rods (no green garbage so this is NOT Endospore negative staining)
Q - Acid Fast (AF+) small hot pink and baby-blue rods the same size; MYCOBACTERIUM
R - Negative Stain from teeth
S - Gram positive large rod (see holes?)
T - Endospore positive large hot dog-shaped pink rods lots of holes and a few oval pink endospores.. plus some green garbage
U - same as E above
V - Endospore positive large hot dog-shaped pink rods lots of holes
W - a human Red Blood Cell under 100X
X - Acid Fast (AF+) small hot pink and baby-blue rods the same size; MYCOBACTERIUM
Y - Endospore positive large hot dog-shaped pink rods lots of holes
Z - Endospore negative very small (!) pink and green rods the same size; no holes; no ovals. When cooking some of the lipid covered rods took the malachite green and some took the pink; MYCOBACTERIUM again using the Endospore differential stain
AA - Gram negative small rods (NO GREEN GARBAGE)
BB - Gram positive cocci
CC - Non-Acid Fast (AF-) small baby-blue rods the same size; E. coli
DD - Acid Fast (AF+) small hot pink and baby-blue rods the same size; MYCOBACTERIUM
EE - Endospore negative very small (!) pink and green rods the same size; no holes; no ovals. When cooking some of the lipid covered rods took the malachite green and some took the pink; MYCOBACTERIUM again using the Endospore differential stain MOST PEOPLE MISS THIS 1 OVER AND OVER - DON'T LOOK FOR GREEN FOR ENDOSPORE POSITIVE!
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