TLS Online TPP Program

#Question id: 741


Which of following statements are INCORRECT about secondary structure of proteins

A. Long block of Glu residues segment of the chain will not form an alpha helix at pH 7.0 but it ll take helical confirmation below its pKR value

B. Long block of Lys residues segment of the chain will not form an alpha helix at pH 7.0 but it ll take helical confirmation above its pKR value

C. Long block of Ala residues segment of the chain will not form an alpha helix at pH 7.0 but it ll take helical confirmation below its pKR value

D. Histidine side chain remain uncharged over pH range 3-6

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. A&B    

  2. B& C

  3. C&D

  4. A&C

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TLS Online TPP Program

#Question id: 12034

#Unit 7. System Physiology – Animal

In a healthy person, after a carbohydrate-rich meal, the production of ________ will increase, causing the uptake of ________ from the blood into liver cells.

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#Unit 7. System Physiology – Animal

A fasting animal whose energy needs exceed those provided in its diet will draw on its stored resources in which order?

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#Question id: 12037

#Unit 7. System Physiology – Animal

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#Unit 7. System Physiology – Animal

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#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?

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#Question id: 12218

#Unit 7. System Physiology – Animal

The control of gastric acid secretion in response to a meal involves several events that take place over a 4- or 5-hr period following the meal. These events include
(1) a decrease in the pH of the gastric contents,
(2) an increase in the rate of acid secretion,
(3) a decrease in the rate of acid secretion, and
(4) an increase in the pH of the gastric contents. Which of the following best describes
the correct temporal order of events over a 4- or 5-hr period following a meal?