TLS Online TPP Program

#Question id: 12033


Food being digested in the stomach is in a highly acidic environment. When the food is released from the stomach into the small intestine, why is the environment no longer acidic?

#Unit 7. System Physiology – Animal
  1. Secretin increases the flow of bicarbonate ions from the pancreas into the small intestine to neutralize the stomach acid.
  2. Trypsinogen is activated, thus neutralizing the stomach acid.
  3. Bile salts from the gallbladder neutralize the stomach acid.
  4. When pepsinogen activates pepsin, one result is the neutralization of stomach acid in the stomach.
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TLS Online TPP Program

#Question id: 10454

#Unit 6. System Physiology – Plant

Arabidopsis mutants impaired in the chloroplast avoidance response with the help of PHOT1/PHOT2 led to the identification of a novel F-actin-binding protein known as

TLS Online TPP Program

#Question id: 10455

#Unit 6. System Physiology – Plant

Phototropins regulate chloroplast movements via_____

TLS Online TPP Program

#Question id: 10456

#Unit 6. System Physiology – Plant

Two identical subunits of UVR8 are linked in the dimer by a network of

TLS Online TPP Program

#Question id: 10457

#Unit 6. System Physiology – Plant

Cryptochromes are blue-light photoreceptors that mediate several blue-light responses, including__hypocotyl elongation, cotyledon expansion, petiole elongation, anthocyanin production and several other responses. Which of the following graph given below correct representing of blue light responses?

TLS Online TPP Program

#Question id: 10458

#Unit 6. System Physiology – Plant

Which of the following statements is not true for cry proteins?

TLS Online TPP Program

#Question id: 10459

#Unit 6. System Physiology – Plant

The role of N-terminus and the C-terminus region of the cryptochrome is given below;

a) N-terminal region is involved in the dimerization of cryptochrome and conformational changes

b) C terminus of cryptochrome forms a complex with SPA1 and COP1 that prevents them from acting, thereby preventing the degradation of HY5

c) N-terminal region of cryptochrome forms a complex with SPA1 and COP1 that prevents them from acting, thereby preventing the degradation of HY5

d) Arabidopsis plants overexpressing only the C-terminal region of cryptochrome (CCT) which resemble light-grown seedlings when grown in darkness

Which of the following combinations from the above statements is correct?