Practice Questions

TLS Online TPP Program

#Question id: 2149

A ligand-gated ion channel (such as the nicotinic acetylcholine receptor) is:

#Unit 2. Cellular Organization

a charged lipid in the membrane bilayer that allows ions to pass through.
a membrane protein that permits a ligand to pass through the membrane only when opened by the appropriate ion.
a membrane protein that permits an ion to pass through the membrane only when opened by the appropriate ligand.
a molecule that binds to the membrane thereby allowing ions to pass through.

More Questions

TLS Online TPP Program

#Question id: 8854

#Unit 9. Diversity of Life Forms

Which cells in a sponge are primarily responsible for trapping and removing food particles from circulating water?

TLS Online TPP Program

#Question id: 12688

#General Aptitude

The perimeter of five squares are 24 cm, 32 cm, 40 cm, 76 cm and 80 cm respectively. The perimeter of another square equal in area to sum of the areas of these squares is :

TLS Online TPP Program

#Question id: 27972

#Unit 1. Molecules and their Interaction Relevant to Biology

This is the order of electron transfer in complex-I NADH - FMN - Fe-S – Q to Prevent electron transfer from Fe-S center to ubiquinone

a. Myxothiazol

b. Rotenone

c. Amytal

d. Piericidin A

Which of the following can be used

TLS Online TPP Program

#Question id: 5784

#Unit 8. Inheritance Biology

Which of the following genetic diseases results from a mutation that lowers the amount of protein produced?

TLS Online TPP Program

#Question id: 12229

#Unit 10. Ecological Principles

Community ecologists would consider which of the following to be most significant in understanding the structure of an ecological community?