Give examples of symport.

1 Answer

Answer :

Sodium dependent glucose transporter (SgluT)

(Fig.8.31). Phlorhizin, an inhibitor of sodium-de-

pendent cotransport of glucose, especially in the

proximal convoluted tubules of kidney, produces

renal damage and results in renal diabetes. Amino

acid transport is another example for symport.

Related questions

Description : What is symport?

Last Answer : In symport, the transporter carries two solutes in the same direction across the membrane

Description : What is uniport symport and antiport? -Biology

Last Answer : answer:

Description : Symport active or passive? -Biology

Last Answer : answer:

Description : What is symport ? (a) Counter transport (b) Contransport (c) Carrier mediated diffusion (d) Solvent drug

Last Answer : Ans: B

Description : Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Last Answer : B. Electrogenic Na+ channels

Description : The Na+-Cl– symport in the early distal convoluted tubule of the kidney is inhibited by: A. Thiazides B. Metolazone C. Xipamide D. All of the above

Last Answer : D. All of the above

Description : Give examples of heteropolysaccharides.

Last Answer : Agar, hyaluronic acid, heparin, chondroitin sulfate.

Description : Give examples of homopolysaccharides.

Last Answer : Starch, and glycogen.

Description : Give examples of multi-enzyme complexes.

Last Answer : Fatty acid synthase, pyruvate dehydrogenase, and alpha keto glutarate dehydrogenase.

Description : Give some examples of covalent modification.

Last Answer : Glycogen synthase is inactive, in the phosphorylated state, whereas glycogen phosphorylase is active when phosphorylated.

Description :  Give examples for allosteric inhibition.

Last Answer : ALA synthase, aspartyl trans-carbamoylase, HMG CoA reductase

Description : Give examples for suicide inhibition.

Last Answer : Ornithine decarboxylase (ODC) is inhibited by difluro methyl ornithine (DFMO). Another example is Allopurinol which is oxidised by xanthine oxidase to alloxanthine that is a strong inhibitor of xanthine oxidase. 

Description : Give examples of non-competitive inhibition.

Last Answer : Di-isopropyl fluoro phosphate inhibits trypsin, fluoride inhibits and enolase.

Description : Give examples of clinical application of competitive inhibition. 

Last Answer : Sulfonamide inhibits PABA incorporation in bacteria, and so acts as an antibacterial agent. Methotrexate inhibits folate reductase system, dicoumarol inhibits vitamin K.

Description : Give examples of competitive inhibition.

Last Answer : Malonate inhibits succinate dehydrogenase.

Description : Give some examples of co-enzymes involved in reactions other than hydrogen transfer.

Last Answer : Thiamine pyrophosphate, pyridoxal phosphate, biotin, co-enzyme A, ATP.

Description : Give some examples of co-enzymes involved in oxidoreductases.

Last Answer : NAD, NADP, FAD.

Description : Give examples of synthases.

Last Answer : Glycogen synthase, ALA synthase, IMP synthase.

Description : Give examples of synthetases.

Last Answer : Carbamoyl phosphate synthetase, arginino suc- cinate synthetase, PRPP synthetase, glutamine synthetase.

Description : Give examples of phosphoproteins.

Last Answer : Casein of milk and vitellin of egg yolk.

Description : Give some examples of chromoproteins.

Last Answer : Hemoglobin, flavoproteins, visual purple.

Description : Give examples of scleroproteins.

Last Answer : Collagen of bone, cartilage and tendon, keratin of hair, horn, nail and hoof.

Description : Give examples of simple proteins.

Last Answer : Albumins, globulins, protamines, prolamines, lectins, scleroproteins.

Description : Give examples of proteins that coagulate easily.

Last Answer : Albumin is easily coagulated, and globulins to a lesser extent.

Description : Give some examples of anionic precipitating agents.

Last Answer : Tungstic acid, phosphotungstic acid, trichloro acetic acid, picric acid, sulphosalicylic acid and tannic acid are protein precipitating agents.

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

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

Description : Give examples of decarboxylation reactions.

Last Answer : Histidine to histamine; tyrosine to tyramine; tryp- tophan to tryptamine.

Description : Give examples of derived amino acids.

Last Answer : Hydroxy proline, hydroxy lysine, ornithine, cit- rulline, homocysteine.

Description : Give examples of amino acids with hydropho- bic side chains.

Last Answer : Valine, leucine, isoleucine.

Description : Give examples of antiport.

Last Answer : Sodium pump (Fig.2.7) or chloride-bicarbonate exchange in RBC (Fig.29.4).

Description : Give examples of uniport.

Last Answer : Glucose transporter (GluT2) operating in most of the cells is an example. Calcium pump is another example

Description : Q. Give examples of active transport systems.

Last Answer : A. Sodium pump, calcium pump

Description : Q. Give some examples of ion channels.

Last Answer : A. Ion channels specific for calcium, potassium and chloride

Description : Q. Give examples of ecto-enzymes

Last Answer : A. Alkaline phosphatase, 5ínucleotidase