TLS Online TPP Program

#Question id: 664


Which is evidence that structures for proteins determined by X-ray crystallography represent the structures in solution?

#XL - Q Biochemistry
  1. Their similarity to structures determined by NMR.

  2. The protein crystals are soluble in water.

  3. The proteins must align in a regular pattern to form a crystal.

  4. Only one conformation is ever possible for a protein so it is irrelevant whether the protein is in a crystal or in solution.

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TLS Online TPP Program

#Question id: 11047

#XL - R Botany

As plants absorb water from the soil, they deplete the soil of water near the surface of the roots, This depletion due to

TLS Online TPP Program

#Question id: 11048

#XL - R Botany

In vascular plants, phloem is the living tissue that transports the soluble organic compound made during photosynthesis in the form of sugar, The phloem tissue is made up of cells called phloem elements. Which of the following given phloem elements are directly involved in translocation?

TLS Online TPP Program

#Question id: 11049

#XL - R Botany

Match the CORRECT combination of the phloem elements with its function.

PHLOEM ELEMENTSFUNCTIONS
P) sieve tube elementsi) for protection and strengthening of the tissue
Q) sieve cellsii) store and release food molecules
R) companion cellsiii) food translocation in angiosperm
S) Phloem parenchyma cells  iv) latex containing cells
T) Phloem fibers and sclereids v) help in flow of solute and show    high, activity metabolic 
U) laticifers vi) food translocation on gymnosperm

TLS Online TPP Program

#Question id: 11050

#XL - R Botany

Three dimensional reconstructions of Arabidopsis sieve plates using a staining technique that can be used to image entire plant organs and Open sieve pores are visible as well as callose plug are also visible which technique used to analyze

TLS Online TPP Program

#Question id: 11076

#XL - T Zoology

Which of the following will decrease pulmonary blood flow resistance?

TLS Online TPP Program

#Question id: 11077

#XL - T Zoology

A person’s normal tidal volume is 400 ml with a dead space of 100 ml. The respiratory rate is 12 breaths/min. The person is placed on ventilator for surgery and the tidal volume is 700 with a rate of 12. What is the approximate alveolar Pco2 for this person?