TLS Online TPP Program

#Question id: 11998


Of the following examples of ecological effect leading to an evolutionary effect, which is most correct? 

#10. Ecological Principles
  1. When seeds are not plentiful ? trees produce more seeds.
  2. A  few  organisms of  a  larger  population  survive  a  drought  ?  these survivors then  emigrate  to  less  arid environments.
  3. A  few  individuals  with  denser fur  survive the  coldest  days  of  an  ice  age  ?  the  reproducing survivors all have long fur.
  4. Fish that swim the fastest in running water  catch the most prey and more easily escape predation.
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TLS Online TPP Program

#Question id: 10352

#6. System Physiology – Plant

which of the following amino acid that participates in the malate–aspartate shuttle to transfer reducing equivalents from the mitochondrion and chloroplast into the cytosol?

TLS Online TPP Program

#Question id: 10353

#6. System Physiology – Plant

Aminotransferases are found in multiple organelles such as cytoplasm, chloroplasts, mitochondria, glyoxysomes, and peroxisomes, these aminotransferases one of its organelles may have a significant role in amino acid biosynthesis such as;

TLS Online TPP Program

#Question id: 10355

#6. System Physiology – Plant

The conversion of ammonium to amino acids requires two enzymes such as GS and GOGAT,

a) High levels of light and carbohydrate—conditions that stimulate plastid GS and Fd-GOGAT

b) Conditions of ample energy inhibit GS and GOGAT

c) The stimulation of GS and GOGAT, they favor nitrogen assimilation into glutamine and glutamate, compounds that are rich in carbon and participate in the synthesis of new plant materials

d) In energy-limited conditions inhibit GS and GOGAT

Which of the following statements about GS and GOGAT is correct?

TLS Online TPP Program

#Question id: 10357

#6. System Physiology – Plant

Why the glutamine and glutamate will not be transported while  asparagine will prefer to be transported?

TLS Online TPP Program

#Question id: 10358

#6. System Physiology – Plant

Which of the following essential micronutrients is associated with nitrate reductase enzyme found in higher plants?

TLS Online TPP Program

#Question id: 10359

#6. System Physiology – Plant

Nitrate reductases of higher plants are composed of two identical subunits, each containing three prosthetic groups. Which of the following is not the prosthetic group of nitrate reductase;