ملخصات التحليلات جامعة الطوسي مرحلة ثالثة

ملخص محاضره 4 كيمياء نضري

ملخص المحاضره 3 كيمياء نضري

ملخص محاضره الاولى+الثانيه كيمياء نضري بقت التسميه خوش نشروه مرتبه ماكتبته

شنو اسمها هاي التركيبه

هاي الدائرة شنو تعني

اسئلة احياء عملي كورس ثاني

_What is the first step in the virus replication cycle? a- Penetration b- Synthesis c- Attachment ✔️ d- Release _ _In which step are viral proteins and nucleic acids synthesized? a- Attachment b- Synthesis ✔️ c- Assembly d- Release __ _one of the more common viruses are: a-COVID-19 b-Influenza c-meningitis d-all of above ✔️ _ _ which virus can lead to AIDS? a- Influenza b- HIV ✔️ c- SARS-CoV-2 d- HPV

'What structure determines the shape of a virus? a- Nucleus b- Capsid ✔️ c- Cell wall d- Mitochondria ____ _How many triangular faces does an icosahedron have? a- 10 b- 15 c- 20✔️ d- 25 ___ _Which of the following viruses has an icosahedral shape? a- Rabies b- Measles c- Herpes simplex✔️ d- Tobacco mosaic virus ____ _What shape is described as a spiral, similar to DNA? a- Icosahedron b- Helix✔️ c- Complex d- Cubic ___ 5. Which of the following viruses has a helical shape? a- Polio b- Chicken pox c- Measles✔️ d- Herpes simplex __ _Which shape is a combination of two other shapes? a- Helix b- Icosahedron c- Complex✔️ d- Spherical ____ _Which of the following is an example of a complex-shaped virus? a- Tobacco mosaic virus b- Polio c- Rabies d- Bacteriophage✔️

_ What is the typical size range of most viruses? A_ 2-25 nm B_ 20-250 nm✔️ C_ 250-500 nm D_ 500-1000 nm ___ _viruses that infect bacteria are known as... A-bacteriophage B-genome C-phage D-A&C ✔️ ___ _What is a virulent phage? A- A phage that infects animals. B- A phage that always lysogenizes its host. C- A phage that always lyses its host cell.✔️ D- A phage that contains an envelope. ___ _What type of genetic material can be found in a viral genome? A- Both DNA and RNA B- Only DNA C- Only RNA D- Either DNA or RNA but not both ✔️ _ _the capsid of virus made up of subunits called.. A-capsomeres ✔️ B-nucleocapsid C-envelope D-None of all __ _the capsid is... A-outer protein coat ✔️ B-inner Protein coat C-structure inside the cell D-D-None of all ____ _one of the structural virus components that not found in all viruses is .. A-Genome B-capsid C-viral envelope✔️ D-all of above

احياءعملي محاضرة "4" _What are viruses? A_ Small cells B_ small Obligate intracellular parasites ✔️ C_ Multicellular organisms D_ Plants ___ _what is the basic structure of a virus? A_ Nucleic acid surrounded by a membrane B_ Nucleic acid surrounded by a protein coat ✔️ C_ Ribosomes surrounded by a lipid layer D_ Mitochondria surrounded by a cell wall __ _Where can viruses replicate? A_ Outside living cell B_ Anywhere in the environment C_ Only within living cells ✔️ D_ Only within non-living materials _ _What is the term for the combination of a capsid and genome in a virus? A_ Capsule B_ Nucleolus C_ Nucleocapsid ✔️ D_ Endosome ____ _Viruses have an inner core of nucleic acid surrounded by a protein coat known as an... A- Capsid B- Envelope ✔️ C- Nucleocapsid D- Matrix

False lactobacillus الإختيار الصح

اسئلة احياء اجت منه بل مد

-classification based on..... a-ingredients b-physical state ✔️ c-color d-a & c

._classification of bacteria based on: a-gram stain sensitivity ✔️ b-mode of respiration c-physical state d-shape of bacteria

_bacteria that show no results on coming in contact with gram Stain are: a- Gram-positive bacteria b- Gram-negative bacteria ✔️ c- cocci-shaped bacteria d- a & b __ _respiration that refers to the partial breakdown of glucose in the absence of oxygen is: a-aerobic respiration b-Anaerobic respiration ✔️ c-partial respiration d-None of all _ _Classification of medium based on physical state into: a-solid media b-semi-solid media c-liquid media d-all of above ✔️ _ _liquid media are sometimes referred as... a-blood agar b-chocolate agar c-soft d-broth ✔️ ____ _one of the major harmful activities of bacteria are: a-food poisoning b-spoilage of food c-bacterial diseases d-all of above ✔️

_The name of the bacteria that found in the milk are... a-streptococcus ✔️ b-Staphylococcus c-lactobacillus d- a & c ___ _microorganisms that can cause disease are... a-normal flora b-bacteremia c-septicemia d-Pathogen ✔️ _ _"blood agar" culture media a-Enriched media ✔️ b-transport media c-differential media d-selective media _ _"TCBS" culture media.. a-Enriched media b-differential media c-selective media ✔️ d-transport media ____ _Differential media... a-Macconkey agar b-XLD agar c-TCBS agar d-all of above ✔️ ____ _Mueller- Hinton agar.. a-selective media b-Enriched media c-susceptibility media ✔️ d-transport media ____ _What type of media is used to demonstrate bacterial motility?    A_ Solid media    B_ Semi-solid media ✔️    C_ Liquid media    D_ Complex media