Mashni Monday's

REASON FOR TITLE: well they both started with "m" so what the hay, why not.

IN CLASS TODAY: We finished our lab with bacterium and how they grow and antibiotics effect on growth of brothculture of peppercorn bacteria (what a gross name for a bacteria). Anyway, everyone got there plates back after being in an incubator for 24 hours. We wrote down our results and counted the bacteria colonies we found in the dish of various bacteria we collected around the school.

Picture above

My groups results were:

Section 1: Cafeteria 22 bacterial colonies

Section 2: Railing 30 bacterial colonies

Section 3: Toilet No bacterial colonies P.S section 3 and 4might have been switched

Section 4: Control 106 bacterial colonies (maybe even more but there were so many!)

In our next lab, we looked at the effects of antibiotics and how they prevent the growth of bacteria. In our petri dish, we spread the broth culture of peppercorn bacteria, and placed 4 paper disks in sections on the dish. 3 paper disc contain an antibiotic and one without for a control. Each petri dish was placed in an incubator for 24 hours, and we got our disk back to

record the ZONE OF INHIBITION (DunDunDUNNNN) [it sounds evil...]

PICTURE:

Our next step is to measure the ZONE OF INHIBITION. The ZONE OF INHIBITION is the space around the antibiotic that has no bacteria, due to the antibiotic killing it. the bigger the space, the more effective the antibiotic is. Different antibiotics react differently to different bacterium. My groups results were:

Section 1: NB 30 22 mm

Section 2: Penicillin 7 mm

Section 3: C 30 33 mm

Section 4: control 0 mm

In the data collected, it was obvious that the control didn't do anything because it didn't have any bacteria on it. if i had to choose on an antibiotic to kill the broth culture i would choose C 30 because it had the largest ZONE OF INHIBITION so it is more effective.

ALSO: I had a few questions about antibiotics and i was told to wait until tomorrow(today) to ask them.

Numero uno: Are antibiotics alive? if not, then what are they made of?

Numero dos: Are they similar to how virus' work, except they attack bacteria?

Numero tres: How are they put into a capsule? and who invented/found antibiotics?

HOMEWORK:

read 35.2 and first page of 35.3 and do a tree map of the immune system (ON MOODLE)

NOTE: THIS IS THE HARDEST READING OF THE YEAR. MRS. STEIN SUGGEST GOING TO THE TLC FOR HELP.

post cards are due 11/8

OUR NEXT TEST IS IN A WEEK FROM TOMORROW! AND WHEN YOU READ THIS IT WILL BE A WEEK FROM TODAY! [[11/9]]

THE NEXT SCRIBE WILL BE.....

{drum roll please...}

ARIANA NUFIO!!!!!!

have fun, this took me a while.