Practice Questions

TLS Online TPP Program

#Question id: 124

What is the role of cholesterol in animal cell membranes?

#Unit 1. Molecules and their Interaction Relevant to Biology

Blocks the association of the fatty acyl chains of phospholipids at high temperature.
Aids in the transport of small hydrophobic molecules across the membrane.
Is a receptor site for hormones on the surface of membranes.
Broadens the temperature range of optimum membrane fluidity.

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TLS Online TPP Program

#Question id: 26911

#Unit 10. Ecological Principles

Which of the following is the characteristics of a realized niche?

Resource utilisation more

Determine by abiotic factors

limiting the areas inhabited by their prey or hosts

Limited their niche by the temperature

TLS Online TPP Program

#Question id: 23160

#Unit 13. Methods in Biology

Texas is a fluorescent dye which emits a colour?

TLS Online TPP Program

#Question id: 4155

#Unit 3. Fundamental Processes

Of all the possible triplet codons, __ do not code for an amino acid.

TLS Online TPP Program

#Question id: 3006

#Unit 2. Cellular Organization

A bacterial population increases from 10³ cells to 10⁹ cells in 10 h. Calculate the number of generation time in minute.

TLS Online TPP Program

#Question id: 26884

#Unit 10. Ecological Principles

c value define by many characteristics given below, except?