Practice Questions

TLS Online TPP Program

#Question id: 13233

Tracheids are

#XL - R Botany

dead cells and are connected to one another through perforation plates— regions of the wall where pores or holes have developed
elongate, hollow, dead cells with highly lignified walls, the walls contain numerous pits— regions where secondary wall is absent but primary wall remains
circular and tapered lignified cell in the xylem of only Angiosperm
component of the phloem tissue

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TLS Online TPP Program

#Question id: 3472

#XL - T Zoology

Which of the following is incorrect statement?

TLS Online TPP Program

#Question id: 19965

#XL - P Chemistry

Bohr’s atomic model can explain the spectrum of

TLS Online TPP Program

#Question id: 4166

#XL - T Zoology

At the ribosome the template mRNA is translated in the __ direction, while the protein is synthesized in the __ direction.

TLS Online TPP Program

#Question id: 20198

#XL - P Chemistry

The wavelength of radiation emitted when in a hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant = 1·09 × 10⁷m^–1)

TLS Online TPP Program

#Question id: 2081

#XL - S Microbiology

The plasma membrane around a eukaryotic cell is composed of: