Keeping in view the "fluid mosaic model" for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?

Plasmodesmata transports gibberellic acid in

Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?

The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this DNA accommodated?

Which one of the following does not differ in E.coli and Chlamydomonas?

Longest cells in human body are

Select the correct statement from the following regarding cell membrane

Assertion: Eukaryotic cells have the ability to adopt a variety of shapes and carry out directed movements.
Reason: There are three principal types of protein filaments-actin filament, microtubules and intermediate filaments, which constitute the cytoskeleton.

Comparing small and large cells, which statement is correct?

In eubacteria, a cellular component that resembles eukaryotic cell is