ملخصات التحليلات جامعة الطوسي مرحلة ثالثة

-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

_one of the outer structures of bacteria is... a-Plasma membrane b-plasmid c-capsule ✔️ d-Ribosome _ _The function of the plasmid is: a-Cellular growth b-protein synthesis c-exchanging DNA between the bacterial cells ✔️ d-controlling the movement of substances in the cell ____ _the following is not one of the Inner structures of bacteria: a-cytoplasm b-mesosome c-Pili ✔️ d-spores _ _bacteria have rod-shaped are commonly called... a-cocci b-bacilli ✔️ c-strepto d-Staphylo ___ _Bacteria resembling a comma ( , )shape Example : a-staphylococcas b-vibrio cholera ✔️ c-Lactobacillus d-Salmonella typhi

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_ apositive benedict's test is not given by: a-lactose b-Maltose ✔️ c-sucrose d-glucose _ _ hydrolysis of esters of fatty acids is commonly: a-condensation reactions b-saponification reactions✔️ c-both a & b d-None of all _ _ in alkali gives soft soap when used: a-NaoH b-KoH ✔️ C-LioH d- a & b ____ _ which of the following is considered useful alkali in saponification reactions ? a-CCL4 b-cl C-NaOH✔️ d-HCl _ _ triglycerides are hydrolyzed in the human body by the.... a-carbohydrates b-enzyme lipase✔️ c-saponification d-None of all

_ the reagent used for distinguishing a reducing monosaccharide from reducing disaccharide is... a-Molisch's regeant b-seliwanoff's regeant c-benedict's regeant d-barfoed's regeant✔️ _ _ one of these sugars is ketose. a-glucose b-fructose✔️ c-galactose d- a & C __ _ one of these compound are sugar: a-C4H8O b-C3H70 c-C6H12O6 ✔️ d-none all above ____ which of the following is a non-reducing sugar a-Lactose b-sucrose ✔️ c-glucose d-none of above ____ _ the end product of hydrolysis of starch by amylase is.. a-maltose b-dextrines c-soluble starch d-glucose ✔️ __ _ hydrolysis of starch give... a/ α-glucose & α-glucose b/ β-fructose & α-glucose c/ α-glucose ✔️ d/ β-glucose

_ formula of monosaccharides is: a_(CH2O)n ✔️ b-CH2 C-both a and b d-None of above ____ _ The type of carbohydrates used in the human body is: a/aldehyde b/ketone C/ D-glucose✔️ d/L-glucose ___ _ one of these sugars is aldose. a-glucose ✔️ b-fructose c-galactose d-None of all ____ _ Linkage monosaccharide by: a-covalent bond b-glycosidic bond ✔️ C-ionic bond d-hydrogen bond ____ _ hydrolysis of glycosidic bond involved : a-formation ionic bond b-formation hydrogen bond C-formation glycosidic bond d-break down glycosidic bond✔️

_hydrolysis of cellulose give α _glucose. "false" ____ _Some carbohydrates have a structural role in plants, animals and bacteria. "true" ____ _Polysaccharide can be dissolved easily in water. "false" ____ _all carbohydrates give furfural and hydroxy methyl furfural. "true" _ _in partial hydrolysis of starch not yields mixture of sugars such as dextrine, maltose and glucose. "false" __ _triglycerides are esters being derived from an alcohol and a fat. "true" ____ _sodium hydroxide is used to neutralize the fatty acid and convert it to the salt. "true" ___ _on of the benefit of alcohol in the soap preparation it is less polar than water and helps to dissolve the nonpolar fat. "true" ___ _when sucrose is hydrolyzed (broken down) We will get galactose and glucose. "false" __ _monosaccharide and disaccharide can be dissolved freely in water . "true"

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ذني اسئلة خاصة بالاحياء النظري كورس ثاني

النقطة الاولى جوابهةcو14ـc

حل اسئله المد تأكدو اكثر خاف اكو خطأ النقطه 27 جوابه B