Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 6921
TLS Online TPP Program

#Question id: 10140

Following are certain statements regarding activated and inactivated form of Rubisco, Which one is INCORRECT?

#Unit 6. System Physiology – Plant
  1. The naturally occurring inhibitor 2-carboxyarabinitol 1-phosphate prevent activation of Rubisco
  2. plant rubisco active site contains His, Asp, Glu and Lys 201 , is a carbamoylated Lys 201 side chain with a bound Mg 2+ ion and is absoluetly require for its activation
  3. The increase in both pH and concentration of Mg2+ facilitates the formation of the (E–NH 3 + – CO2 – • Mg2+) complex, which represents the catalytically active form of rubisco
  4. The tight binding of sugar phosphates, such as ribulose 1,5-bisphosphate (RuBP), either impedes the production of the E–carbamate adduct or blocks the binding of substrates to the carbamylated enzyme
More Questions
TLS Online TPP Program

#Question id: 12275

#Unit 7. System Physiology – Animal

Two weeks after constricting the renal artery of a sole remaining kidney to initially reduce renal artery pressure by 20 mm Hg (from 100 to 80 mm Hg), which of the following changes would you expect, compared with before constriction of the artery?
TLS Online TPP Program

#Question id: 12276

#Unit 7. System Physiology – Animal

Because the usual rate of phosphate filtration exceeds the transport maximum for phosphate reabsorption, which of the following is true?
TLS Online TPP Program

#Question id: 12277

#Unit 7. System Physiology – Animal

A 45-year-old man adds lots of high-fiber wheat and bran foods to his diet to reduce his cholesterol. He loses 30 lb on the new diet, but has undesirable side effects such as stomach cramps, flatulence, and diarrhea. His gastroenterologist diagnoses a syndrome called gluten-enteropathy or celiac sprue. Which of the following is decreased in this man?
TLS Online TPP Program

#Question id: 12278

#Unit 10. Ecological Principles

In many plant and animal communities that are found on islands, the number of species (S) changes with the area (A) of the island as follows: S = cAz, where 0 <z < 1 and c>0. Which of the following graphs best represents such a species-area relationship?
TLS Online TPP Program

#Question id: 12279

#Unit 10. Ecological Principles

Assuming that only one quail can occupy a habitat where all cover requirements are met, what is the maximum number of quail that could inhabit any of the hypothetical plots shown? 
TLS Online TPP Program

#Question id: 12280

#Unit 10. Ecological Principles

What is the effective population size of a population of 50 strictly monogamous swans (40 males and 10 females) if every female breeds successfully?