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Bacteriology > Structure Part 2 > Flashcards

Structure Part 2 Flashcards

1
Q

An extension of the cell membrane that folds into the cytoplasm …………

A

Mesosome

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2
Q

Site of attachment of DNA chromosome during cell division

A

Mesosome

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3
Q

It increases the surface area of the cell membrane and it is the site of respiratory activity

A

Mesosome

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4
Q

The main bacterial chromosomal DNA is …………..but plasmid is ……………..

A

1/single stranded
2/double stranded

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5
Q

……………is dispensable, transmissible, autonomous

A

Plasmid

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6
Q

Endospores are resistance to what kind of radiations ?

A

Ultraviolet + gamma

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7
Q

Spore is formed exclusively by

A

1/bacillus (aerobic)
2/clostridium(anaerobic)

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8
Q

…………..is the spore protoplast (كامل الخلية ماعدا جدارها)

A

Core

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9
Q

The energy of germination is stored in the core of spore as ……………….

A

3phosphoglycerate = GP =G3P

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10
Q

…………….which is in the core ,is a spore-specific chemical that appears to help in the ability for endospores to maintain dormancy. البقاء في سبات

A

Dipicolinic acid (DPA) +dipicolinic calcium

المادة النووية والطاقة والأنزيمات كلها في القلب
Core

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11
Q

…………. ‘S peptidoglycan is sensitive to lysozyme , and its autolysis plays a key role in spore germination .

وهي اثخن طبقة🤐🫥🤪🤪🤪🤪🤪

A

Cortex

هل تصدق ان القشرة اثخن طبقة🍺🍺🍺🍺🍺🍺🤪🤪🤪🤪🤪🤪

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12
Q

Its impermeability gives the spore its relative resistiance to antibacterial chemical agents

A

القمصلة الكيراتينية
(The coat)

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13
Q

An membrane of the endospore that is composed mainly of lipoprotein and also contains carbohydrates

A

Exosporium

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14
Q

Sporulation , when carbon and ……………. Are depleted

A

Nitrogen

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15
Q

The core spore has an increase amount of …………..enzyme

A

Alanin racemase
Which convert ( L-alanin to D-alanin).

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16
Q

High perecentage of ………… nitrogenous bases and amino acids containing……….. ,give the spore its ability of resistance of lethal agents .

A

Cytocin +guanin
Sulfure( cystein)

*سر خلود الأبواغ في (جس+كبريت)🤗

17
Q

Compounds containing sulfhydral group and acidity, can overcome spore…………

18
Q

In initiation of germination , an effector binds to the spore and an autolysin degrades the ………..

A

Cortex peptidoglycan

19
Q

In initiation of germination ,After degrading of the cortex of the spore , water is……….,calcium dipicolinate is………….., spore constituents are degraded

A

1/ taken up
2/released

20
Q

…………..spores is used in biological warfare.

A

Bacillus anthracis

21
Q

……………..spores is used for quality controls of heat sterilization equipments.

A

Bacillus stearothermophilus

22
Q

Bioflim is ……..

A

شبكة من عديد السكاريد

23
Q

…………. Forms bioflim , and causes………

A

Staphylococcus epidermydis
Bacteremia and catheter related sepsis .

24
Q

رتب طبقات الأبواغ
Keratin Coat ,inner membrane,outer membrane ,cortex, cell wall , exosporium,core .

A

Core
Inner membrane
Cell wall
Cortex
Outer membrane
Keratin Coat
Exosporium

25
Q

الأبواغ ترتدي قمصلة كيراتينية

A

Keratenic coat

26
Q

Peptidoglycan in spore:-
Typical in……………
Atypical in………….

A

Cell wall
Cortex ///// أثخن طبقة

27
Q

Miscellaneous bacteria المتفرقات ، ذوخصائص مختلفة

A

Don’t stain with gram or acid fast stain

28
Q

Miscellaneous bacteria like

A

Mycoplasma ماعندة جدار خلية
Treponema (A spirochete with very thin structure)
Clamydia ,Rickettsia (intracellular bacteria).

29
Q

عبارة عن تجمع المادة الوراثية للبكتريا (نواة غير حقيقية)

30
Q

Respiration:-
Eukaryotes………………
Prokaryotes…………….

A

Mitochondria
Cellular membrane

31
Q

In gram negative bacteria:-
Murein lipoprotein…………..
Lipopolysaccharide LPS…………

A

1/ in peptidoglycan layer
2/الطبقة الثانية من الغشاء الثاني😂🥸

32
Q

ص١+٢+٣/
figures
Mark

33
Q

……………. Is resistance to lysozyme and penicillin attack ,and …………….is vulnerable

A

Gram -
Gram+

34
Q

تحمي البكتريا من البلعمة ، إلا في حالة التصاق الأجسام المضادة بها حيث تصير عميلة ال opsonization

35
Q

عبارة عن اختبار ،يتم من خلاله معرفة وجود الكابسول وذلك عن طريق اضافة الأجسام المضادة لها ،حيث يسبب تضخم الكابسول لتتوضح تحت المجهر

A

Quellung reaction

36
Q

عندما تكون الظروف غير مناسبة (sporulation)
وعندما تكون مناسبة …………………

والتي هي عبارة عن ٣مراحل:-
١/…………….(damaging the coat)
٢/……………. (damaging the cortex)الخطوة المباركة 🤗
٣/Outgrowth (period of active biosynthesis)

A

Germination

Activation تنشيط
Initiation بدء

37
Q

Prokaryotic ribosome ……… with ……….subunits .
eukaryotic ribosomes………..with ……….subunits.

A

70s , 50s+30s (فردي🤔)
80s ,60s+40s (زوجي🤔🫠)

لاحظي فرق الأرقام عشرين عشرين.

38
Q

Both prokaryotic and eukaryotic ribosomes are in form of free or on mitochondria
While eukaryotic’s could also be at ………

Bacteriology (15 decks)

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