TLS Online TPP Program

#Question id: 2070


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

#Section 3: Genetics, Cellular and Molecular Biology
  1. pumps equal quantities of Na+ and K+ across the membrane in opposite directions

  2. is used to drive the transport of glucose against a concentration gradient

  3. decreases the voltage difference across the membrane

  4. generates voltage across the membrane

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TLS Online TPP Program

#Question id: 10506

#Section 6: Plant, Animal and Microbial Biotechnology

Plant growth promoting rhizobacteria (PGPRs) such as Pseudomonas aeruginosa, that alleviate plant abiotic or biotic stress in soil by releasing of

TLS Online TPP Program

#Question id: 10507

#Section 6: Plant, Animal and Microbial Biotechnology

Rhizobacteria function as

 a) Nitrogen fixation

 b) depositing pathogens directly into the vascular system,

 c) producing antibiotics and antifungal agents for inhibiting soil pathogens

 d) herbivore sensors by sending electrical or chemical signals to surrounding cells

 Which one of the following combination is correct?

TLS Online TPP Program

#Question id: 10508

#Section 6: Plant, Animal and Microbial Biotechnology

Glandular trichomes store species-specific secondary metabolites in a pocket formed between the cell wall and the cuticle. These secondary metabolites are-

TLS Online TPP Program

#Question id: 10509

#Section 6: Plant, Animal and Microbial Biotechnology

A different type of mechanical obstacle to herbivory is provided by mineral crystals that are present in many plant species, such as silica crystals known as

TLS Online TPP Program

#Question id: 10510

#Section 6: Plant, Animal and Microbial Biotechnology

Constitutive chemical defenses are effective against many different herbivores, including insects and mammals. Hemlock (Cicuta sp.) produces which toxins that a polyacetylene prolongs the repolarization of neuronal action potentials.

TLS Online TPP Program

#Question id: 10511

#Section 6: Plant, Animal and Microbial Biotechnology

Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?