Practice Questions

TLS Online TPP Program

#Question id: 11130

Which of the following electrical events is characteristic of inhibitory synaptic interactions?

#Unit 7. System Physiology – Animal

A neurotransmitter agent that selectively opens ligand-gated chloride channels is the basis for an inhibitory postsynaptic potential
Because the Nernst potential for chloride is about −70 mV, chloride ions tend to move out of the cell along its electrochemical gradient
A neurotransmitter that selectively opens potassium channels will allow potassium to move into the cell
An increase in the extracellular sodium concentration usually leads directly to an inhibitory postsynaptic potential

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TLS Online TPP Program

#Question id: 15737

#Unit 12. Applied Biology

The basic event of development in higher organisms is

TLS Online TPP Program

#Question id: 15751

#Unit 12. Applied Biology

Plants through the fusion of protoplasts of two different plant species/varieties is called

TLS Online TPP Program

#Question id: 15755

#Unit 12. Applied Biology

Cybrids or cytoplasmic hybrids are cells or plants containing

TLS Online TPP Program

#Question id: 15756

#Unit 12. Applied Biology

Synthetic seeds are produced by the encapsulation of somatic embryos with ___________.

TLS Online TPP Program

#Question id: 15757

#Unit 12. Applied Biology

Which of the following growth hormones produces apical dominance?

TLS Online TPP Program

#Question id: 15758

#Unit 12. Applied Biology

Adsorbants like activated charcoal or PVP (polyvinylpyrrolidon) may be used as adsorbant to prevent