Practice Questions

TLS Online TPP Program

#Question id: 2070

The sodium-potassium pump is called an electrogenic pump because it:

#Section 2: General Biology

pumps equal quantities of Na+ and K+ across the membrane in opposite directions
is used to drive the transport of glucose against a concentration gradient
decreases the voltage difference across the membrane
generates voltage across the membrane

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TLS Online TPP Program

#Question id: 14407

#Section 2: General Biology

Most gram-negative bacteria are not as susceptible to penicillin as gram-positive bacteria are because

TLS Online TPP Program

#Question id: 14408

#Section 2: General Biology

Acid-fast bacteria such as Mycobacterium can be stained with

TLS Online TPP Program

#Question id: 14409

#Section 2: General Biology

A spheroplast also a spherical structure is obtained by

TLS Online TPP Program

#Question id: 14410

#Section 2: General Biology

Which of the following cell structures makes a bacteria pathogenic

A. Glycocylax layer

D. Lyzozyme resistance

Which of the following combinations are Incorrect.

TLS Online TPP Program

#Question id: 14411

#Section 2: General Biology

Which of the following does not kill endospores?

TLS Online TPP Program

#Question id: 14412

#Section 2: General Biology

Which of these disinfectants does not act by disrupting the plasma membrane?