TLS Online TPP Program

#Question id: 10782


Which one of the following are not shown the characteristics of Saponins_____

#Section 6: Plant, Animal and Microbial Biotechnology
  1. steroid and triterpene glycosides, so named because of their soaplike properties
  2. presence of both lipid-soluble (the steroid or triterpene) and watersoluble (the sugar) elements in one molecule gives saponins detergent properties
  3. Phenolic compounds that contain a phenol group—a hydroxyl functional group on an aromatic ring
  4. The toxicity of this compound is thought to be a result of their ability to form complexes with sterols

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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?

TLS Online TPP Program

#Question id: 10512

#Section 6: Plant, Animal and Microbial Biotechnology

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids alkaloids are derived from,