What is the role of peptidoglycan in the cell, what are the two polysaccharides which make...
- What is the role of peptidoglycan in the cell, what are the two polysaccharides which make up the backbone, and what is the advantage for a cell lacking peptidoglycan? (4)
Homework Answers
Peptidoglycan forms cell wall in bacteria...
The two polysaccharides present in backbone are-
N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM). .
Role of Peptidyoglycan- Peptidoglycan serves a structural role in the bacterial cell wall, giving structural strength, as well as counteracting the osmotic pressure of the cytoplasm. Peptidoglycan is also involved in binary fission during bacterial cell reproduction.
If Peptidoglycan is absent it makes cell semi- permeable which is an advantage in case of passive diffusion...
Add Answer to:
What is the role of peptidoglycan in the cell, what are
the two polysaccharides which make...
Cell Structure and Function: 1. What is the basic structure of the cytoplasmic membrane, and what...
Cell Structure and Function: 1. What is the basic structure of the cytoplasmic membrane, and what are its three critical roles in bacteria? (5) 2. What is the role of peptidoglycan in the cell, what are the two polysaccharides which make up the backbone, and what is the advantage for a cell lacking peptidoglycan? (4) 3. What is the difference between Gram-negative and Gram-positive Bacteria in the crosslinking of peptidoglycan? (2) 4. How and why does the Gram stain differentially...
Within a prokaryotic cell, bacteria, you will find peptidoglycan. This is a component only found in...
Within a prokaryotic cell, bacteria, you will find peptidoglycan. This is a component only found in bacteria. The role of this compound, peptidoglycan, is to give bacteria its rigid structure within the cell wall. This is what protects certain substances from entering the bacteria, this sturdy wall provides support and strength to the bacteria. Peptidoglycan is composed of, to simplify, sugar and proteins that allow the cell wall of bacteria to be strong and bendy. Another reasons why peptidoglycan is...
pls help Choose the correct answer 1. Bacteria have a cell wall made up of polysaccharides...
pls help
Choose the correct answer 1. Bacteria have a cell wall made up of polysaccharides and polypeptides. This helps scientists place them into groups. Another name for this chemical make up is the glycocalyx e. capsule b. pili d. peptidoglycan 2. Protists are part of the organisms that float on currents of water. They are a copepods c. plankton b. viruses d. none 3. Which organisms are able to fic nitrogen gas to make it usable for others? a...
Which of the following has peptidoglycan as a major constituent of cell wall? A. Gram-negative bacteria...
Which of the following has peptidoglycan as a major constituent of cell wall? A. Gram-negative bacteria B. Gram-positive bacteria C. Fungi D. None of these
The bactericidal antibiotic penicillin kills bacterial cells by preventing peptidoglycan (cell wall) biosynthesis. Which of the...
The bactericidal antibiotic penicillin kills bacterial cells by preventing peptidoglycan (cell wall) biosynthesis. Which of the following phases of the bacterial growth curve would you expect penicillin to be most active against?
What is thought to be the role of the glutamic acid in catalysis when lysozyme hydrolyzes...
What is thought to be the role of the glutamic acid in catalysis when lysozyme hydrolyzes the glycosidic bond between C-1 of N-acetylglucosamine and C-4 of N-acetylmuramic acid of the polysaccharides of bacterial cell walls?
State which types of organism make the following polysaccharides: cellulose, glycogen, chitin, starch. Explain which types...
State which types of organism make the following polysaccharides: cellulose, glycogen, chitin, starch. Explain which types are digestible by animals and why
3.(1.0 pt) Fibrous plants have a lot of cellulose, but other polysaccharides are in the cell...
3.(1.0 pt) Fibrous plants have a lot of cellulose, but other polysaccharides are in the cell wall. There are two other compounds called xylans and glucomannans. Below are descriptions of typical xylans and glucomannans. In the description "Me"is methyl, the suffix "p" in the monosaccharide names indicates the pyranose forms. . . .β-D-Xylo( 1 →4)[β-D-Xylp( 1 →4)],-β-D-Xylp(1→4)-β-D-Xylp(1+4). . . Acetyl at C-2 or c-3 4-0-Mea--Gcp1+2 A typical xylan structure po-Glcp(1+4HSD-Manp0+4)-β·D-Manp(1+4)-f3-D-Manp(1→4). . . B-D-Galp(1-+6) Acetyl at C-2 or C-3 A typical...
Please answer all.... Thank you! 20.)The term spheroplast applies to a gram-negative bacterial cell which _____....
Please answer all.... Thank you!
20.)The term
spheroplast applies to a gram-negative bacterial cell which
_____.
Select is likely to lyse due to the
osmotic shock as your answer
is likely to lyse due to the osmotic shock
Select is just about to ready to
produce a spore as your answer
is just about to ready to produce a spore
Select is fighting off an infection
by becteriophages as your answer
is fighting off an infection by becteriophages
Select has...
b) Give the uses of the each of the polysaccharides below: [4 marks] i. Amylose ii....
b) Give the uses of the each of the polysaccharides below: [4 marks] i. Amylose ii. Cellulose iii. Glycogen iv. Peptidoglycan c) In a lab experiment, Ngosa and Melinda synthesized an artificial polysaccharide containing four glucose units, one galactose unit and one fructose unit. Upon acid hydrolysis of the polysaccharide with three water molecules, they obtained two disaccharides and two monosaccharide units. If the monosaccharide units obtained were a glucose unit and galactose unit, what were the two other molecules...
Cell Structure and Function: 1. What is the basic structure of the cytoplasmic membrane, and what are its three critical roles in bacteria? (5) 2. What is the role of peptidoglycan in the cell, what are the two polysaccharides which make up the backbone, and what is the advantage for a cell lacking peptidoglycan? (4) 3. What is the difference between Gram-negative and Gram-positive Bacteria in the crosslinking of peptidoglycan? (2) 4. How and why does the Gram stain differentially...
pls help
Choose the correct answer 1. Bacteria have a cell wall made up of polysaccharides and polypeptides. This helps scientists place them into groups. Another name for this chemical make up is the glycocalyx e. capsule b. pili d. peptidoglycan 2. Protists are part of the organisms that float on currents of water. They are a copepods c. plankton b. viruses d. none 3. Which organisms are able to fic nitrogen gas to make it usable for others? a...
3.(1.0 pt) Fibrous plants have a lot of cellulose, but other polysaccharides are in the cell wall. There are two other compounds called xylans and glucomannans. Below are descriptions of typical xylans and glucomannans. In the description "Me"is methyl, the suffix "p" in the monosaccharide names indicates the pyranose forms. . . .β-D-Xylo( 1 →4)[β-D-Xylp( 1 →4)],-β-D-Xylp(1→4)-β-D-Xylp(1+4). . . Acetyl at C-2 or c-3 4-0-Mea--Gcp1+2 A typical xylan structure po-Glcp(1+4HSD-Manp0+4)-β·D-Manp(1+4)-f3-D-Manp(1→4). . . B-D-Galp(1-+6) Acetyl at C-2 or C-3 A typical...
Please answer all.... Thank you!
20.)The term
spheroplast applies to a gram-negative bacterial cell which
_____.
Select is likely to lyse due to the
osmotic shock as your answer
is likely to lyse due to the osmotic shock
Select is just about to ready to
produce a spore as your answer
is just about to ready to produce a spore
Select is fighting off an infection
by becteriophages as your answer
is fighting off an infection by becteriophages
Select has...
b) Give the uses of the each of the polysaccharides below: [4 marks] i. Amylose ii. Cellulose iii. Glycogen iv. Peptidoglycan c) In a lab experiment, Ngosa and Melinda synthesized an artificial polysaccharide containing four glucose units, one galactose unit and one fructose unit. Upon acid hydrolysis of the polysaccharide with three water molecules, they obtained two disaccharides and two monosaccharide units. If the monosaccharide units obtained were a glucose unit and galactose unit, what were the two other molecules...
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