TLS Online TPP Program

#Question id: 19691


The QT interval of an electrocardiogram (ECG) includes the  

#Unit 13. Methods in Biology
  1. QRS complex + the T wave 
  2. QRS complex + the ST segment
  3. the QRS complex + the ST segment + the T wave
  4. PR segment + QRS complex + ST segment
More Questions
TLS Online TPP Program

#Question id: 3513

#Unit 8. Inheritance Biology

RR- red, Rr- pink, rr- white flower color in plant. Pink flower plant allowed to repeated self fertilization up 3 generation. The proportional of pink flower is 

TLS Online TPP Program

#Question id: 10474

#Unit 1. Molecules and their Interaction Relevant to Biology

Lipids differ from other large biological molecules in that they

TLS Online TPP Program

#Question id: 375

#Unit 1. Molecules and their Interaction Relevant to Biology

The aqueous solution with the lowest pH is:

TLS Online TPP Program

#Question id: 23769

#Unit 7. System Physiology – Animal

What are the difference between the cones and rode cells?
a. Cones are sensitive to low-intensity light and Rods are responsible for vision at higher light levels. 
b. Rods are sensitive to low-intensity light and cones are responsible for vision at higher light levels. 
c. Rods do not participate in color vision and cones do.
d. Cones do not participate in color vision and Rods do.
Choose correct statements accordingly

TLS Online TPP Program

#Question id: 10284

#Unit 6. System Physiology – Plant

Allosteric regulation of enzyme multisubunit or multiactive site shows cooperativity with the sigmoidal graph between substerate conc. v/s Activity,


a) Cell contain NADH, FADH2 and ATP, that inhibits the allosteric enzyme activity by lowering the affinity with its substate, graph shifts towards B from control

 b) A- shows low ATP, the Km for fructose 6-phosphate is relatively low, the affinity of the enzyme with its substate is relatively high

 c) Haemoglobin, Phosphofructokinase, Phosphate dehydrogenase complex, α-ketoglutarate dehydrogenase complex, these all enzymes shows characteristics of sigmoidal graph

 d) When ATP is high, Km for fructose 6-phosphate is greatly increased- this activity shown by B in the graph

 e) fructose 2,6-bisphosphate binds to its allosteric site on PFK-1, it increases the enzyme’s affinity for its substrate fructose 6-phosphate and reduces its affinity for the allosteric inhibitors ATP and citrate- shown in graph by A

 Which of the following  combination of the enzyme activity with its substate correctly shown;