Practice Questions

TLS Online TPP Program

#Question id: 24285

Adherens junctions:

#Unit 4. Cell Communication and Cell Signaling

function as transmembrane linkers (integrators) between the extracellular matrix and the actin cytoskeleton.
permit the passage of molecules as large as 1.2 nm in diameter
seal off body cavities and restrict diffusion of membrane components.
functions as a tension cable that can internally brace the cell and thereby control its shape

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TLS Online TPP Program

#Question id: 15868

#Unit 12. Applied Biology

If the culture is kept in stationary phase for a prolonged period, the cells may die. Why?

a) due to the time taken for doubling of cell number

b) duration of a cell generation is too large, depending mainly on the plant species.

c) stationary phase is forced on the culture by a depletion of the nutrients

d) due to an accumulation of cellular wastes

TLS Online TPP Program

#Question id: 29458

#Unit 6. System Physiology – Plant

Which of the following is an essential for AUXIN transport in cell called as chemiosmotic model of auxin transport

TLS Online TPP Program

#Question id: 31314

#Unit 6. System Physiology – Plant

Pyruvate is precursor of which secondary metabolite biosynthetic pathway

TLS Online TPP Program

#Question id: 2475

#Unit 2. Cellular Organization

What is a microtubule protofilament?

TLS Online TPP Program

#Question id: 4251

#Unit 3. Fundamental Processes

Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?