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SECOND YEAR > MICROBIOLOGY 2 > Flashcards

MICROBIOLOGY 2 Flashcards

1
Q

chemical substances that produced by
microorganisms and suppress the growth of other
microorganisms

A

Antibiotics

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2
Q

Natural penicillin

A

PENZYLE PENICILLIN , PENICIILLIN G

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3
Q

penicillinase resistant penicillins

A

Oxacillin
Methacillin Cloxacillin
Nafcillin Dicloxacillin
Flucloxacillin
Narrow spectrum (Mainly against G+ve bacteria

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4
Q

Extended spectrum penicillin

A

Ampicillin
Amoxycillin
* Broad spectrum (In addition to G+ve also active against G-ve
common enteric bacteria

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5
Q

Anti-pseudomonas penicillins

A

Carbenicillin ,Azlocillin
Ticarcillin ,Mezlocillin
Pepracillin
(Less activity against G-ve, more active against pseudomona

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6
Q

: is the sum of genetic material of cell
* Chromosome
* Non chromosomal (plasmid

A

genome

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7
Q

GENE

A

A segment of DNA or a segment of nucleotides in
DNA that code for a functional product

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8
Q

Smallest viruses

A

4to 5 genes

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9
Q

LENGTH OF DNA IN E.COLI

A

1mm

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10
Q

super coiling generated by the activity of?

A

Toboisomerase enz

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11
Q

separation of tow strands by?

A

HELICASE ENZ

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12
Q

MIS MATCH REPAIR

A

wrong base been incorporated in the new strand it may
lead to mutation

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13
Q

Activated by the formation of
pyrimidine dimers by UV
irradiation

A

EXCISION REPAIR

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14
Q

occurs when cells are
overwhelmed by DNA damages

A

SOS REPAIR

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15
Q

PROMOTORES

A

signals to start
the transcription, it hold the
information as to which strand
to be transcribed

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16
Q
  • Small RNA molecules that
    recognize codons
A

tRNA

17
Q

CONTAIN GENESE FOR MOVEMENT AMONG PLASMID OR CHROMOSOME

A

INSERTION SEQUENCE

18
Q

s responsible for
the production of, sex pili

A

F PLASMID

19
Q

It is a change in the base sequence of DNA leading to the production of a
protein that has an altered amino acid sequence.

A

MUTATION

20
Q

The mechanism for transmitting
external signals to the interior of
the cell

A

signal
transduction

21
Q

TRANSLATION CONTROL BY?

A

RIOBOSOME BINDING
CODON USAGE

SECOND YEAR (3 decks)

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