TLS Online TPP Program

#Question id: 9568


Which of the following represents a plant adaptation that minimizes water loss in arid environments by increasing the thickness of the boundary layer?

#SCPH28 | Zoology
  1. Dense hairs and spines
  2. Thick and waxy cuticle
  3. Minimal root system
  4. Reddish coloration
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TLS Online TPP Program

#Question id: 10786

#I Life Science/ Life Sciences Group – I-V

Alkaloids are usually synthesized from one of a few common amino acids such as___

TLS Online TPP Program

#Question id: 10786

#SCPH05 I Biotechnology

Alkaloids are usually synthesized from one of a few common amino acids such as___

TLS Online TPP Program

#Question id: 10787

#I Life Science/ Life Sciences Group – I-V

Which structure represents cinnamic acid___

TLS Online TPP Program

#Question id: 10787

#SCPH05 I Biotechnology

Which structure represents cinnamic acid___

TLS Online TPP Program

#Question id: 10788

#I Life Science/ Life Sciences Group – I-V

Phenyl ammonia lyase (PAL) involved in biosynthesis of phenolic compound in plants. Following are some statements regarding the action of PAL;

a) PAL catalyze conversion of phenyl alanine to p-coumaric acid

b) PAL catalyzes the conversion of phenyl alanine into trans-Cinnamic acid by elimination of an ammonia molecule

c) The activity of PAL is increased by environmental factors, such as low nutrient levels, light, and fungal infection

d) PAL is situated at a branch point between primary and secondary metabolism, so the reaction that it catalyzes is an important regulatory step in the formation of many phenolic compounds

Which of the following combinations of above statement is true?

TLS Online TPP Program

#Question id: 10788

#SCPH05 I Biotechnology

Phenyl ammonia lyase (PAL) involved in biosynthesis of phenolic compound in plants. Following are some statements regarding the action of PAL;

a) PAL catalyze conversion of phenyl alanine to p-coumaric acid

b) PAL catalyzes the conversion of phenyl alanine into trans-Cinnamic acid by elimination of an ammonia molecule

c) The activity of PAL is increased by environmental factors, such as low nutrient levels, light, and fungal infection

d) PAL is situated at a branch point between primary and secondary metabolism, so the reaction that it catalyzes is an important regulatory step in the formation of many phenolic compounds

Which of the following combinations of above statement is true?