G-proteins are (A) Monomers (B) Dimers (C) Trimers (D) Tetramers

G-proteins are (A) Monomers (B) Dimers (C) Trimers (D) Tetramers
by

1 Answer

Answer :

Answer :  C
by
selected

Related questions

Bence-Jones proteins possess all the following properties except (A) They are dimers of light chains (B) Their amino acids sequences are identical (C) Their N-terminal halves have variable amino acid sequences (D) Their C-terminal halves have constant amino acid sequences

Description : Bence-Jones proteins possess all the following properties except (A) They are dimers of light chains (B) Their amino acids sequences are identical (C) Their N-terminal halves have variable amino acid sequences (D) Their C-terminal halves have constant amino acid sequences

Last Answer : Answer : B

Exposure of DNA to ultraviolet radiation can lead to the formation of (A) Adenine dimers (B) Guanine dimers (C) Thymine dimers (D) Uracil dimers

Description : Exposure of DNA to ultraviolet radiation can lead to the formation of (A) Adenine dimers (B) Guanine dimers (C) Thymine dimers (D) Uracil dimers

Last Answer : Answer : C

In your body proteins are polymers assembled from monomers called what?

Description : In your body proteins are polymers assembled from monomers called what?

Last Answer : Need answer

Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of carbohydrates, fats and proteins. (c) Enzymes of electron transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Description : Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of ... transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.

The monomers from which proteins are built are called

Description : The monomers from which proteins are built are called 

Last Answer : ANSWER: AMINO ACIDS

The isoenzymes of LDH (A) Differ only in a single amino acid (B) Differ in catalytic activity (C) Exist in 5 forms depending on M and H monomer contents (D) Occur as monomers

Description : The isoenzymes of LDH (A) Differ only in a single amino acid (B) Differ in catalytic activity (C) Exist in 5 forms depending on M and H monomer contents (D) Occur as monomers

Last Answer : Answer : C

Receptors for thyroid hormones are present (A) On the cell membrane (B) Across the cell membrane (C) Inside the cells (D) In association with G-proteins

Description : Receptors for thyroid hormones are present (A) On the cell membrane (B) Across the cell membrane (C) Inside the cells (D) In association with G-proteins

Last Answer : Answer : C

The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit

Description : The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit

Last Answer : Answer : A

G-proteins have a nucleotide binding site for (A) ADP/ATP (B) GDP/GTP (C) CDP/CTP (D) UDP/UTP

Description : G-proteins have a nucleotide binding site for (A) ADP/ATP (B) GDP/GTP (C) CDP/CTP (D) UDP/UTP

Last Answer : Answer : B

G-proteins act as (A) Hormone carriers (B) Hormone receptors (C) Second messengers (D) Signal transducers

Description : G-proteins act as (A) Hormone carriers (B) Hormone receptors (C) Second messengers (D) Signal transducers

Last Answer : Answer : D

A/G ratio is (A) Strength of proteins (B) ratio of serum proteins (C) ratio of ceruloplasmin (D) None of these

Description : A/G ratio is (A) Strength of proteins (B) ratio of serum proteins (C) ratio of ceruloplasmin (D) None of these

Last Answer : Answer : B

Write the names of two natural polymers and what are the names of their monomers ?

Description : Write the names of two natural polymers and what are the names of their monomers ?

Last Answer : Two natural polymers are called cellulose and protein. Cellulose monomers are called glucose and protein monomers are called amino acids.

which is the correct sequence of events in the origin of life: I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic

Description : which is the correct sequence of events in the origin of life: I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic

Last Answer : which is the correct sequence of events in the origin of life: I. Formation of protobionts II. Synthesis of organic ... II, III, IV D. I, III, II, IV

$ Progenote is considered to be the more ancient form of life which gave rise to archaeobacteria and eubacteria. ! Monomers are always multicellular.

Description : $ Progenote is considered to be the more ancient form of life which gave rise to archaeobacteria and eubacteria. ! Monomers are always multicellular.

Last Answer : $ Progenote is considered to be the more ancient form of life which gave rise to archaeobacteria and eubacteria ... D. If both As and R are wrong.

$ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar agar is a polysaccharides formed of many galactose monomers.

Description : $ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar agar is a polysaccharides formed of many galactose monomers.

Last Answer : $ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar agar is a polysaccharides formed of many ... wrong D. If both As and R are wrong.

$ The process of formation of polysaccharides by condensation of monomers is called hydrolysis. Glycogen is a stored food materials found in plants.

Description : $ The process of formation of polysaccharides by condensation of monomers is called hydrolysis. Glycogen is a stored food materials found in plants.

Last Answer : $ The process of formation of polysaccharides by condensation of monomers is called hydrolysis. Glycogen is a ... D. If both As and R are wrong.

Which of the following polymer does not contain 1,3-butadiene as one of the monomers?

Description : Which of the following polymer does not contain 1,3-butadiene as one of the monomers?

Last Answer : Which of the following polymer does not contain 1,3-butadiene as one of the monomers? A. Butyl rubber B. Nitrile rubber C. ABS rubber D. SBR

What are the base monomers of the DNA polymer called?

Description : What are the base monomers of the DNA polymer called?

Last Answer : Need answer

What category is common sugars like fructose and lactose found in monomers?

Description : What category is common sugars like fructose and lactose found in monomers?

Last Answer : Sugars that are monomers are called monosaccharides, which are singe (simple) sugars like glucose, fructose, and galactose. However, lactose is a disaccharide (double sugar) composed of galactose and glucose bonded together.

What monomers are called nucleotides?

Description : What monomers are called nucleotides?

Last Answer : our genes code for this type of macromolecule?

What happens to monomers when they undergobdehydration synthesis?

Description : What happens to monomers when they undergobdehydration synthesis?

Last Answer : What is the answer ?

What two monomers makes up disaccharide?

Description : What two monomers makes up disaccharide?

Last Answer : Need answer

What Synthetic rubber has different monomers than natural rubber.?

Description : What Synthetic rubber has different monomers than natural rubber.?

Last Answer : synthetic rubber has different monomers than natural rubber.

when monomers are joined together what do they form?

Description : when monomers are joined together what do they form?

Last Answer : polymers

The process by which polymers and plas- tics made from monomers?

Description : The process by which polymers and plas- tics made from monomers?

Last Answer : Polymerisation

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is (A) Nylon-66 (B) Teflon (C) Polyester (D) Bakelite

Description : Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is (A) Nylon-66 (B) Teflon (C) Polyester (D) Bakelite

Last Answer : (B) Teflon

In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer? (A) PTFE (B) Buna-S (C) PMMA (D) Polycaprolactam

Description : In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer? (A) PTFE (B) Buna-S (C) PMMA (D) Polycaprolactam

Last Answer : (B) Buna-S

In condensation polymerisation as compared to addition polymerisation (A) The monomers are unsaturated compounds (B) No co-product is lost (C) The monomers contain two functional groups (D) Generally only one monomer is involved

Description : In condensation polymerisation as compared to addition polymerisation (A) The monomers are unsaturated compounds (B) No co-product is lost (C) The monomers contain two functional groups (D) Generally only one monomer is involved

Last Answer : (C) The monomers contain two functional groups

Polymerisation of poly functional monomers produces polymers having (A) Good mechanical strength (B) Low viscosity (C) Low melting point (D) None of these

Description : Polymerisation of poly functional monomers produces polymers having (A) Good mechanical strength (B) Low viscosity (C) Low melting point (D) None of these

Last Answer : (A) Good mechanical strength

Polymerisation process in which two or more monomers of chemically different nature take part is called (A) Copolymerisation (B) Addition polymerisation (C) Chain polymerisation (D) None of these

Description : Polymerisation process in which two or more monomers of chemically different nature take part is called (A) Copolymerisation (B) Addition polymerisation (C) Chain polymerisation (D) None of these

Last Answer : (A) Copolymerisation

Which of the following is not a polymer of two monomers? (A) Teflon (B) Bakelite (C) SBR (D) None of these

Description : Which of the following is not a polymer of two monomers? (A) Teflon (B) Bakelite (C) SBR (D) None of these

Last Answer : (A) Teflon

Write the name of monomers of Melamine-Formaldehyde.

Description : Write the name of monomers of Melamine-Formaldehyde.

Last Answer : Ans: Melamine and Formaldehyde. 

What are monomers of Nylon 6.6

Description : What are monomers of Nylon 6.6

Last Answer : Ans: (a) Hexamethylene diamine and adaipic acid. 

Which of the following is the correct sequence of events in the origin of life? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems (a) I, II, III, IV (b) I, III, II, IV (c) II, III, I, IV (d) II, III, IV, I

Description : Which of the following is the correct sequence of events in the origin of life? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems (a) I, II, III, IV (b) I, III, II, IV (c) II, III, I, IV (d) II, III, IV, I

Last Answer : c) II, III, I, IV

The monomers for Buna-S are 1,3-butadiene and (a) Ethylene glycol (b) Adipic acid (c) Styrene (d) Caprolactum

Description : The monomers for Buna-S are 1,3-butadiene and (a) Ethylene glycol (b) Adipic acid (c) Styrene (d) Caprolactum

Last Answer : Styrene

Pick up the correct statement from the following: (A) The substance which consists of one primary chemical, is known as monomer (B) The polymer consists of thousands of monomers joined together (C) The polymer molecule is called macro-molecule (D) All the above

Description : Pick up the correct statement from the following: (A) The substance which consists of one primary chemical, is known as monomer (B) The polymer consists of thousands of monomers joined together (C) The polymer molecule is called macro-molecule (D) All the above

Last Answer : Answer: Option D

Self polymerising acrylic resins differ from heat cured resins because they exhibit: A. Higher molecules weight B. Higher content of residual monomers

Description : Self polymerising acrylic resins differ from heat cured resins because they exhibit: A. Higher molecules weight B. Higher content of residual monomers

Last Answer : B. Higher content of residual monomers

What is the structural basis of activation of heterotrimeric G proteins?

Description : What is the structural basis of activation of heterotrimeric G proteins?

Last Answer : Heterotrimeric G proteins are composed of α, β, and γ polypeptide chains. Usually, the α and γ chains are anchored to the inner leaflet of the plasma membrane by lipid anchors that ... possible physiological effects that depend on which G protein-coupled receptor(s) they become associated. 

The following are true about G proteins: a. they are first messengers b. when activated, the alpha subunit exchange GDP for GTP c. they are transmembrane signal receptor molecules d. vibrio cholerae secrets an exotoxin which makes G-proteins resistant to inactivation

Description : The following are true about G proteins: a. they are first messengers b. when activated, the alpha subunit exchange GDP for GTP c. they are transmembrane signal receptor molecules d. vibrio cholerae secrets an exotoxin which makes G-proteins resistant to inactivation

Last Answer : when activated, the alpha subunit exchange GDP for GTP

G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Description : G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Last Answer : are activated by the binding of an extracellular ligand to a membrane receptor

What are heterotrimeric G proteins?

Description : What are heterotrimeric G proteins?

Last Answer : G proteins with three different subunits, designated as alpha, beta, and gamma. Alpha and gamma subunits attach to the plasma membranes via lipid anchors. In the absence of a signal, the entire GDP ... alpha subunit is replaced by GTP, and the GTP-bound alpha subunit and beta-gamma dimer dissociate.

What are G proteins?

Description : What are G proteins?

Last Answer : G proteins are proteins that can bind guanosine triphosphate (GTP) and guanosine diphosphate (GDP). G-proteins function as switches; GTP-bound G-proteins are active whereas GDP-bound G-proteins are inactive.

The β3 adrenoceptor differs from the other subtypes of β receptor in that it: A. Is not blocked by the conventional doses of propranolol B. Is located primarily in the heart C. Regulates blood sugar level D. Is not coupled to G proteins

Description : The β3 adrenoceptor differs from the other subtypes of β receptor in that it: A. Is not blocked by the conventional doses of propranolol B. Is located primarily in the heart C. Regulates blood sugar level D. Is not coupled to G proteins

Last Answer : A. Is not blocked by the conventional doses of propranolol

All of the following subserve as intracellular second messengers in receptor mediated signal transduction except: A. Cyclic AMP B. Inositol trisphosphate C. Diacyl glycerols D. G proteins

Description : All of the following subserve as intracellular second messengers in receptor mediated signal transduction except: A. Cyclic AMP B. Inositol trisphosphate C. Diacyl glycerols D. G proteins

Last Answer : D. G proteins

The β 3 adrenoceptor differs from the other subtypes of β receptor in that it: A. Is not blocked by the conventional doses of propranolol B. Is located primarily in the heart C. Regulates blood sugar level D. Is not coupled to G proteins

Description : The β 3 adrenoceptor differs from the other subtypes of β receptor in that it: A. Is not blocked by the conventional doses of propranolol B. Is located primarily in the heart C. Regulates blood sugar level D. Is not coupled to G proteins

Last Answer : A. Is not blocked by the conventional doses of propranolol

All of the following subserve as intracellular second messengers in receptor mediated signal transduction except: A. Cyclic AMP B. Inositol trisphosphate C. Diacyl glycerols D. G proteins

Description : All of the following subserve as intracellular second messengers in receptor mediated signal transduction except: A. Cyclic AMP B. Inositol trisphosphate C. Diacyl glycerols D. G proteins

Last Answer : D. G proteins