Lipoteichoic acid
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16.
The lipopolysaccharide of Gram-negative bacteria is composed of the following EXCEPT:
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Polysaccharide |
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Lipoteichoic acid |
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Phospholipid |
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O-Polysaccharide |
Step by step
Solved in 3 steps
- 1. Identify the encircled functional group (hydroxyl, carbonyl, amino, carboxyl). HO HO a) c) =6 H3C НО g H3C eo HU H3C HQ S penicillin Qo O pyruvate CH CH OH Cholesterol Epinephrine CH3 NH O N CH3 CH3 b) f d) CH3 CH₂ CH₂ CH3 CH CH₂ CH CH3 OH NH₂ H H-C-OH HO-C-H H-C-OH H-C-OH CH₂OH1) If the pH of the rain drops from 6 to 5 due to air pollution, the rain has become: a) two time more acidic b) four-time more acidic c) ten time more acidic d) one thousand times more acidic 2) which of combination of statement is correct ? the denaturation of protein 1- causes changes in tertiary structure 2- is always an irreversible process 3-has no influence on the solubility 4-occurs only by interaction with heavy metals 5-does not influence covalent bonds and hydrogen bonds select one: a) only 1 is correct b) only 1 and 2 are correct c) only 3 and 4 are correct d) only 3, 4 and 5 are correct e) only 1, 2 and 5 are correct1. Explain why lipids are insoluble in polar solvents. Explain for 6 sentences
- 1- Please refer to the Fisher representation of the 5 monosaccharides below: ÇH2OH CHO CHO CHO CHO H- H- он H- OH OH HO HO но- H- OH HO Но- H- -OH H- H- -OH HO- OH HO H- -OH H- -OH HO HO H- OH ČH2OH ČH2CH ČH2CH ČH2CH ČH2CH D-Fructose D-Glucose L-Glucose L-Idose D-Galactose 1a- Which one(s) of the above molecules belong(s) to the subcategory of aldohexoses? and which one(s) of these molecules belong(s) to the subcategory of ketohexoses? Briefly explain your response. 1b- Which one of the above molecules is an enantiomer of D-Glucose? and which one is an epimer of L-Ildose? Briefly explain your response.Select the correct statement about β-sheets: They have side chains exposed on one side of the sheet. They often exhibit a right-handed twist when viewed along their polypeptide strands. The torsion angles are identical in both parallel and antiparallel β-sheets. They are held together by disulfide bonds. They are associations of α-helical segments lying side by side.3. Attach the structures below to draw a sphingolipid. CH3-(CH2)12-CH=CH-CH-OH sphingosine CH–NH2 CH₂-OH H-O-P-0-H 0* HO NH2-CH₂-CH2-OH
- 14C-labeled cellulose is added to a vial containing some anoxic freshwater lake sediments and sealed under anoxic conditions. A few hours later, 14CH4 appears in the vial. Discuss what has happened to yield such a result16. Name the type of biomolecules shown below:Which of the following statements is correct regarding the structures below? CHO CHO H-OH ОН н ОН НО H НО -Н н- ОН CH₂OH CAB All are structures of D-sugars. All are structures of ketohexoses. Only CAR is a monosaccharide. 0 Only CAP is a L-sugar. Н I H CHO -ОН H-OH H-OH н- -ОН CH₂OH CAR H-OH -ОН НО-Н то н- H-OH CH₂OH CAP CH2OH to HO-H НО-н Н 1 - он CH₂OH CAT
- 19. Label structure name onlyS1.What functional group (pictured below) is used in the formation of ATP, the backbone of DNA, and the plasma membrane? R. - HO- asluolom OgH 910m ansa obyd to inuoms adisi69 101 P- Hnedenoi HO 9tom anisinos H 19w 1639 eniv blut viend ou nontel:oceansied bol-ngtsl s19 1591 a. Amino b. Carbonyl c. Ester d. Phosphate e. Alcohol Sabios onime Tertio of bensemoo Insietib ti aolem tsrll blas onims ns to neg at to quang ly snodibod for ogh quotg28) peptidyl transferase enzyme activity forms A- peptide bonds between nucleotides B-peptide bonds between amino acids C- phoshodiester bonds between nucleotides D- hydrogen bonds between nucleic acid bases E- phosphodiester Bonds between amino acids
