Practice Questions

TLS Online TPP Program

#Question id: 1084

Which observation suggested to Sutherland the involvement of a second messenger in epinephrine's effect on liver cells?

#Unit 4. Cell Communication and Cell Signaling

Receptor studies indicated that epinephrine was a ligand.
Glycogen breakdown was observed only when epinephrine was administered to intact cells.
Glycogen breakdown was observed when epinephrine and glycogen phosphorylase were combined in a cell-free system.
Epinephrine was known to have different effects on many types of cells.

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TLS Online TPP Program

#Question id: 13555

#Unit 6. System Physiology – Plant

Water Loss Is Also Regulated by the Pathway Resistance

TLS Online TPP Program

#Question id: 6982

#Unit 5. Developmental Biology

Which of the following genes control the final structures of appendages from each segment?

TLS Online TPP Program

#Question id: 16789

#Unit 13. Methods in Biology

The median of number 50, 48, 47, 48.5, 50.5, 52, 48.8, 46 will be:

TLS Online TPP Program

#Question id: 12762

#Unit 10. Ecological Principles

Find appropriate option for given question . The figure above depicts the intensity versus frequency curve of an a2coustical receptor of the larva of a noctuid moth. The larva is preyed on by a wasp whose vibrating wings produce a0buzz.

On the basis of the figure, it can be predicted that the wasp buzz 1has a frequency

TLS Online TPP Program

#Question id: 12585

#Unit 10. Ecological Principles

Agricultural lands frequently require nutritional supplementation because