Practice Questions

TLS Online TPP Program

#Question id: 11204

Why do Na+ ions enter the cell when voltage-gated Na+ channels are opened in neurons?

#Unit 7. System Physiology – Animal

because the Na+ concentration is much lower outside the cell than it is inside
because the Na+ ions are actively transported by the sodium-potassium pump into the cell
because the Na+ concentration is much higher outside the cell than it is inside, and the Na+ ions are attracted to the negatively charged interior
because the Na+ concentration is much higher outside the cell than it is inside, and the Na+ ions are actively transported by the sodium-potassium pump into the cell

More Questions

TLS Online TPP Program

#Question id: 17073

#Unit 12. Applied Biology

Hypoxanthine is converted into guanine by the enzyme HGPRT an enzymes of the salvage pathway. What does HGPRT stands for?

TLS Online TPP Program

#Question id: 3946

#Unit 3. Fundamental Processes

Which type of mutation is likely to be the most harmful?

TLS Online TPP Program

#Question id: 28562

#Unit 5. Developmental Biology

For stalk and spore maturation, cAMP is produced by____

TLS Online TPP Program

#Question id: 10340

#Unit 6. System Physiology – Plant

There several charecteristics of nitrate reductase, which of the following properties of nitrate reductase is incorrect?

TLS Online TPP Program

#Question id: 5595

#Unit 5. Developmental Biology

A protein that can act as an anchor for cadherins or as a transcription factor-