When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated at 25 °C with phosphoglycerate mutase until equilibrium is reached, the final mixture contains six times as much 2-phosphoglycerate as 3-phosphoglycerate.  Which one of the following statements is most nearly correct, when applied to the reaction as written?  (R = 8.315 J/mol·K; T = 298 K)  3-Phosphoglycerate -> 2-phosphoglycerate

TLS Online TPP Program

#Question id: 12529

#Unit 6. System Physiology – Plant

During the mid- to late stages of seed development, specific mRNAs accumulate in embryos, These mRNAs encode so-called late-embryogenesis-abundant (LEA) proteins thought to be involved in desiccation tolerance. This mRNA accumulation in embryo at the time of high levels of which endogenous hormone?

TLS Online TPP Program

#Question id: 12530

#Unit 6. System Physiology – Plant

Some given hormones is also called a ubiquitous hormone?

a) Ethylene

b) Gibberellin

c) Abscisic acid

d) Brassinosteroids

TLS Online TPP Program

#Question id: 12531

#Unit 6. System Physiology – Plant

The most bioactive brassin in eudicots, which is a polyhydroxylated steroid similar to animal steroid hormones that brassin is

TLS Online TPP Program

#Question id: 12532

#Unit 6. System Physiology – Plant

In Arabidopsis some brassinosteroid mutants given below;

a) 3-week-old light-grown homozygous bri1 mutant shown a severe dwarf plant while heterozygous bri1 mutant exhibits wild-type morphology

b) 3-week-old light-grown homozygous cpd (constitutive photomorphogenisis and dwarfism) mutant exhibits a wild-type phenotype while heterozygous mutant shown a dwarf phenotype

c) The dark-grown det2 mutant has short, thick hypocotyls and expanded cotyledons while the dark-grown wild type has long, thin hypocotyl 

d) The dark-grown det2 mutant has exhibits a wild-type phenotype

Which of the following given mutants of brassinosteroid is correct?

TLS Online TPP Program

#Question id: 12533

#Unit 10. Ecological Principles

If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starts from seaweeds to fish to seals to polar bears, then which of the following could be true?

TLS Online TPP Program

#Question id: 12534

#Unit 10. Ecological Principles

Which of the following statements is correct about biogeochemical cycling?