TLS Online TPP Program

#Question id: 7310


Which statement best describes the mechanism for circadian rhythm?

#I Life Science/ Life Sciences Group – I-V
  1. There is an alternation between enhanced and inhibited expression of clock genes.
  2. Clock genes inhibit gene expression of positive elements.
  3. Clock genes inhibit expression of negative elements.
  4. The time-keeping mechanism depends only on the breakdown of negative elements.
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TLS Online TPP Program

#Question id: 10813

#SCPH05 I Biotechnology

A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as

TLS Online TPP Program

#Question id: 10813

#SCPH06 I Botany

A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as

TLS Online TPP Program

#Question id: 10877

#I Life Science/ Life Sciences Group – I-V

A 27-year-old man is breathing quietly. He then inhales as much air as possible and exhales as much air as he can, producing the spirogram shown in the previous figure. What is his expiratory reserve volume (in liters)? 


TLS Online TPP Program

#Question id: 10877

#SCPH28 | Zoology

A 27-year-old man is breathing quietly. He then inhales as much air as possible and exhales as much air as he can, producing the spirogram shown in the previous figure. What is his expiratory reserve volume (in liters)? 


TLS Online TPP Program

#Question id: 10878

#I Life Science/ Life Sciences Group – I-V

The resistance of the pulmonary tree is so low that a 1 cm of water pressure gradient is sufficient to cause normal air flow during resting conditions. Which of the following often has a substantial resistance during pulmonary disease states that can limit alveolar ventilation?

TLS Online TPP Program

#Question id: 10878

#SCPH28 | Zoology

The resistance of the pulmonary tree is so low that a 1 cm of water pressure gradient is sufficient to cause normal air flow during resting conditions. Which of the following often has a substantial resistance during pulmonary disease states that can limit alveolar ventilation?