Why is STRUCTURE and FUNCTION specifically important for proteins?

Why is STRUCTURE and FUNCTION specifically important for proteins?
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.All plastids have similar structure because they can (a) store starch, lipids and proteins (b) get transformed from one type to another (c) perform same function (d) be present together.

Description : .All plastids have similar structure because they can (a) store starch, lipids and proteins (b) get transformed from one type to another (c) perform same function (d) be present together.

Last Answer : (b) get transformed from one type to another

Typically proteins do not work in their simple amino acid chain structure but instead fold and form shapes that help in their function. Which of the structures is described as being in alpha helices and beta sheets?

Description : Typically proteins do not work in their simple amino acid chain structure but instead fold and form shapes that help in their function. Which of the structures is described as being in alpha helices and beta sheets?

Last Answer : Secondary Protein Structure

Of the four traditional roles of an artist as cited in your textbook, specifically identify which of those traditional roles was the most important for Warhol in creating the artwork depicted in Fig. 1-29, page 27 Explain why you chose that role?

Description : Of the four traditional roles of an artist as cited in your textbook, specifically identify which of those traditional roles was the most important for Warhol in creating the artwork depicted in Fig. 1-29, page 27 Explain why you chose that role?

Last Answer : When Warhol was creating the artwork they were using the role a visual record of the people, places, and events of their time and place. I wouldn't say any of the other roles really hit ... . This role was important for Warhol due to capturing the events that actually went down during these times.

Primary data is________. A. the most important data. B. the data that is collected first. C. new data specifically collected for a project. D. data that is collected second.

Description : Primary data is________. A. the most important data. B. the data that is collected first. C. new data specifically collected for a project. D. data that is collected second.

Last Answer : C. new data specifically collected for a project.

What function is specifically prescribed by the Constitution for the vice-President of India? -Do You Know?

Description : What function is specifically prescribed by the Constitution for the vice-President of India? -Do You Know?

Last Answer : answer:

Why are proteins important in cellular function?

Description : Why are proteins important in cellular function?

Last Answer : Feel Free to Answer

Multiple checkpoints in the eukaryotic cell cycle ensure that division occurs only after sufficient growth and faithful DNA replication, and only when favorable conditions exist. Of the many proteins involved in cell cycle control, cyclin-dependent kinases (CDKs) are among the most important. How do CDKs function to control the cell cycle?

Description : Multiple checkpoints in the eukaryotic cell cycle ensure that division occurs only after sufficient growth and faithful DNA replication, and only when favorable conditions exist. Of the many proteins involved in ... CDKs) are among the most important. How do CDKs function to control the cell cycle?

Last Answer : CDKs phosphorylate various protein substrates that are required for cell cycle progression. Some of the important substrate proteins that CDKs phosphorylate include condensin proteins, which are essential ... which form a stabilizing network under the nuclear membrane that assembles during mitosis.

What type of bonding helps in stabilishing the a-helix structure of proteins? -Chemistry

Description : What type of bonding helps in stabilishing the a-helix structure of proteins? -Chemistry

Last Answer : a-helix formation -» Intramolecular hydrogen bonding.

What is tertiary structure of proteins? -Biology

Description : What is tertiary structure of proteins? -Biology

Last Answer : Protein tertiary structure is the three dimensional shape of a protein. The tertiary structure will have a single polypeptide chain "backbone" with one or more protein secondary structures, the protein domains. ... .[1][2] A number of tertiary structures may fold into a quaternary structure.[3]

What is tertiary structure of proteins? -Biology

Description : What is tertiary structure of proteins? -Biology

Last Answer : answer:

(a) granular structure (b) first observed under the electron microscope as dense particles by Geprge Palade ( c ) composed of RNA and proteins not sur

Description : (a) granular structure (b) first observed under the electron microscope as dense particles by Geprge Palade ( c ) composed of RNA and proteins not sur

Last Answer : (a) granular structure (b) first observed under the electron microscope as dense particles by ... Nucleolus B. Ribosomes C. Cristae D. Chloroplast

What is The cellular structure that is responsible for synthesizing proteins is?

Description : What is The cellular structure that is responsible for synthesizing proteins is?

Last Answer : Feel Free to Answer

What term describes the structure of a cell plasma membrane because of its oily nature and embebbed proteins?

Description : What term describes the structure of a cell plasma membrane because of its oily nature and embebbed proteins?

Last Answer : fluid mosaic

Isoenzymes can be characterized by (A) Proteins lacking enzymatic activity that are necessary for the activation of enzymes (B) Proteolytic enzymes activated by hydrolysis (C) Enzymes with identical primary structure (D) Similar enzymes that catalyse different reaction

Description : Isoenzymes can be characterized by (A) Proteins lacking enzymatic activity that are necessary for the activation of enzymes (B) Proteolytic enzymes activated by hydrolysis (C) Enzymes with identical primary structure (D) Similar enzymes that catalyse different reaction

Last Answer : Answer : B

Denaturation of proteins involves breakdown of (A) Secondary structure(B) Tertiary structure (C) Quarternary structure(D) All of these

Description : Denaturation of proteins involves breakdown of (A) Secondary structure(B) Tertiary structure (C) Quarternary structure(D) All of these

Last Answer : Answer : D

The hydrogen bonds in the secondary and tertiary structure of proteins are directly attacked by (A) Salts (B) Alkalies (C) Detergents (D) All of these

Description : The hydrogen bonds in the secondary and tertiary structure of proteins are directly attacked by (A) Salts (B) Alkalies (C) Detergents (D) All of these

Last Answer : Answer : B

A coiled structure in which peptide bonds are folded in regular manner by (A) Globular proteins (B) Fibrous proteins (C) Both (A) and (B) (D) None of these

Description : A coiled structure in which peptide bonds are folded in regular manner by (A) Globular proteins (B) Fibrous proteins (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

During denaturation of proteins, all of the following are disrupted except (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Description : During denaturation of proteins, all of the following are disrupted except (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Last Answer : Answer : B

Primary structure of proteins can be determined by the use of (A) Electrophoresis (B) Chromatography (C) Ninhydrin (D) Sanger’s reagent

Description : Primary structure of proteins can be determined by the use of (A) Electrophoresis (B) Chromatography (C) Ninhydrin (D) Sanger’s reagent

Last Answer : Answer : D

Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule

Description : Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule

Last Answer : Answer : C

Tertiary structure of a protein describes (A) The order of amino acids (B) Location of disulphide bonds (C) Loop regions of proteins (D) The ways of protein folding

Description : Tertiary structure of a protein describes (A) The order of amino acids (B) Location of disulphide bonds (C) Loop regions of proteins (D) The ways of protein folding

Last Answer : Answer : D

The a-helix of proteins is (A) A pleated structure (B) Made periodic by disulphide bridges (C) A non-periodic structure (D) Stabilised by hydrogen bonds between NH and CO groups of the main chain

Description : The a-helix of proteins is (A) A pleated structure (B) Made periodic by disulphide bridges (C) A non-periodic structure (D) Stabilised by hydrogen bonds between NH and CO groups of the main chain

Last Answer : Answer : C

In proteins the α-helix and β-pleated sheet are examples of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Description : In proteins the α-helix and β-pleated sheet are examples of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Last Answer : Answer : B

A single DNA molecule condensed into a compact structure in vivo by complexing with accessory histones or histone-like proteins.

Description : A single DNA molecule condensed into a compact structure in vivo by complexing with accessory histones or histone-like proteins.

Last Answer : Ans. Chromosome

Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following statement(s) is/are true concerning antimicrobial classes? a. Penicillins and cephalosporins share the compound structure of a b-lactam ring which binds to bacterial division plate proteins b. Tetracyclines and macrolides such as erythromycin inhibit bacterial ribosomal activity and therefore protein synthesis c. Aminoglycosides act in a similar fashion to tetracyclines and therefore are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Description : Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following ... are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Last Answer : Answer: a, b, d Penicillins, cephalosporins, and monobactams possess a b-lactam ring of some type and act to bind bacterial division plate proteins, thus inhibiting cell wall ... act in different mechanisms to inhibit protein synthesis, therefore two agents in combination act synergistically

What type of bonding helps in stabilising the -helix structure of proteins ?

Description : What type of bonding helps in stabilising the -helix structure of proteins ?

Last Answer : Ans. In a -helix structure, polypeptide chain of amino acids coils as a right handed screw  because of the formation of all possible Hydrogen bonds between — NH group at each amino residue and > C = 0 group of adjacent turn of helix.

Give some examples of proteins having quater- nary structure.

Description : Give some examples of proteins having quater- nary structure.

Last Answer : Hemoglobin, lactate dehydrogenase, immunoglo- bulin.

What are the salient features of alpha structure of proteins?

Description : What are the salient features of alpha structure of proteins?

Last Answer : It is a right-handed spiral structure; each turn is formed by 3.6 amino acid residues; it is major structural motif in globular proteins.

“Ramachandran plot” is used to confirm the structure of (a) RNA (b) proteins (c) triacylglycerides (d) DNA

Description : “Ramachandran plot” is used to confirm the structure of (a) RNA (b) proteins (c) triacylglycerides (d) DNA

Last Answer : (b) proteins

Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?(a) While proteins can flip-flop, lipids can not (b) Neither lipids, nor proteins can flip-flop (c) Both lipids and proteins can flip-flop (d) While lipids can rarely flip-flop, proteins cannot.

Description : Keeping in view the fluid mosaic model' for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid ... ) Both lipids and proteins can flip-flop (d) While lipids can rarely flip-flop, proteins cannot.

Last Answer : (d) While lipids can rarely flip-flop, proteins cannot.

Many blue-green algae occur in thermal springs (hot-water springs). The temperature tolerance of these algae have been attributed to their (a) mitochondrial structure (b) importance of homopolar bonds in their proteins (c) cell wall structure (d) modern cell organization.

Description : Many blue-green algae occur in thermal springs (hot-water springs). The temperature tolerance of these algae have been attributed to their (a) mitochondrial structure (b) importance of homopolar bonds in their proteins (c) cell wall structure (d) modern cell organization.

Last Answer : (c) cell wall structure

Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Description : Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Last Answer : d. They trigger antibody production.

Digestion of proteins involves (a) changes in secondary structure only (b) cleavage of peptide linkages (c) removal of all carboxyl groups in the form of CO2. (d) removal of all NH2 groups in the form of NH3

Description : Digestion of proteins involves (a) changes in secondary structure only (b) cleavage of peptide linkages (c) removal of all carboxyl groups in the form of CO2. (d) removal of all NH2 groups in the form of NH3

Last Answer : cleavage of peptide linkages

The linear arrangement of amino acid units in proteins is called : (a) primary structure (b) secondary structure (c) tertiary structure (d) quaternary structure

Description : The linear arrangement of amino acid units in proteins is called : (a) primary structure (b) secondary structure (c) tertiary structure (d) quaternary structure

Last Answer : primary structure

Which of the following is the “quaternary structure” of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with respect to each other (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone

Description : Which of the following is the quaternary structure of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with ... (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone

Last Answer : description of the way the peptide chains are arranged with respect to each other

Which of the following may characterize the “secondary structure” of proteins? (a) conformation of the protein backbone (b) α-Helix (c) parallel β-pleated sheet (d) all of the above

Description : Which of the following may characterize the “secondary structure” of proteins? (a) conformation of the protein backbone (b) α-Helix (c) parallel β-pleated sheet (d) all of the above

Last Answer : all of the above

Which of the following is the first step in the determination of the primary structure of proteins? (a) determining the number and kind of amino acids in the peptide (b) reducing the disulfide bridges in the protein (c) protecting the N-terminal of the peptide (d) protecting the C-terminal of the peptide

Description : Which of the following is the first step in the determination of the primary structure of proteins? (a) determining the number and kind of amino acids in the peptide (b) reducing the disulfide bridges ... (c) protecting the N-terminal of the peptide (d) protecting the C-terminal of the peptide

Last Answer : reducing the disulfide bridges in the protein

Why is moist heat more versatile than dry heat? a. It More Easily Penetrates Materials. b. Water Molecules Conduct Heat Better Than Air c. It Denatures Proteins By Changing Their Structure And Chemical Bonds d. A-C Are Correct

Description : Why is moist heat more versatile than dry heat? a. It More Easily Penetrates Materials. b. Water Molecules Conduct Heat Better Than Air c. It Denatures Proteins By Changing Their Structure And Chemical Bonds d. A-C Are Correct

Last Answer : d. A-C Are Correct

What is not True for DNA in prokaryotes a) present in the form of a compact structure called nucleoid b) the coils are maintained by non-histone basic proteins c) found in cytoplasm in a supercoiled condition d) packaged as nucleosomes along with histones

Description : What is not True for DNA in prokaryotes a) present in the form of a compact structure called nucleoid b) the coils are maintained by non-histone basic proteins c) found in cytoplasm in a supercoiled condition d) packaged as nucleosomes along with histones

Last Answer : b) the coils are maintained by non-histone basic proteins

Digestion of protein-is necessary because (a)It not absorbed as such (b)Proteins are large molecules. (c) Proteins have complex structure. (d) Proteins are made of amino acids

Description : Digestion of protein-is necessary because (a)It not absorbed as such (b)Proteins are large molecules. (c) Proteins have complex structure. (d) Proteins are made of amino acids

Last Answer : (a)It not absorbed as such

Typically, in a global product structure: a) adaptation to local needs is high. b) marketing is the most important function. c) marketing is subservient to operations. d) operation is subservient to marketing

Description : Typically, in a global product structure: a) adaptation to local needs is high. b) marketing is the most important function. c) marketing is subservient to operations. d) operation is subservient to marketing

Last Answer : marketing is subservient to operations.