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TLS Online TPP Program

#Question id: 5681

What is the arrangement of microtubules in sperm flagellum?

#Unit 5. Developmental Biology

  1. The core of the axoneme consists of two central singlet microtubules surrounded by a row of nine doublet microtubules.

  2. The core of the axoneme consists of two central doublet microtubules surrounded by a row of nine singlet microtubules.

  3. The core of the axoneme consists a row of nine central singlet microtubules surrounded by two doublet microtubules.

  4. The core of the axoneme consists of two central triplet microtubules surrounded by a row of nine doublet microtubules.

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TLS Online TPP Program

#Question id: 13227

#Unit 6. System Physiology – Plant

Match the following  Special Techniques Are Used in Nutritional Studies;


Which of the following combination is correct ?
TLS Online TPP Program

#Question id: 13228

#Unit 6. System Physiology – Plant

Classification of plant mineral nutrients according to biochemical function

          

                  Mineral nutrient

 

                       Functions

 

      A.)  Silicon(Si)

 

     1.)    Constituent of alcohol dehydrogenase, glutamic dehydrogenase, carbonic anhydrase, etc

     B.)  Manganese(Mn)

     2.)    Component of sugar phosphates, nucleic acids, nucleotides, coenzymes, phospholipids, phytic acid, etc. Has a key role in reactions that involve ATP

      C.)  Zinc(Zn)

     3.)    Contributes to cell wall mechanical properties, including rigidity and elasticity.

 

      D.)  Phosphorous(P)

     4.)    Component of ascorbic acid oxidase, tyrosinase, monoamine oxidase, uricase, cytochrome oxidase, phenolase, laccase, and plastocyanin.

      E.)   Copper(Cu)

     5.)    Required for activity of some dehydrogenases, decarboxylases, kinases, oxidases, and peroxidases. Involved with other cation-activated enzymes and photosynthetic O2 evolution

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 13229

#Unit 6. System Physiology – Plant

Deficiencies in mineral elements in most species chlorosis (yellowing of the leaves), especially in the older leaves near the base of the plant by
TLS Online TPP Program

#Question id: 13230

#Unit 6. System Physiology – Plant

In very dry soils, the water potential (Yw) may fall below what is called the permanent wilting point, the water potential of the soil is so low that plants cannot regain turgor pressure even if all water loss through transpiration ceases. This means that
a) The hydraulic conductivity decreases drastically 
b) The water potential of the soil (Yw) is less than or equal to the osmotic potential (Ys ) of the plant
c) The water potential of the soil (Yw) is more than the osmotic potential (Ys) of the plant
d) cell osmotic potential (Ys) varies with plant species, the permanent wilting point is clearly not a unique property of the soil, it depends on the plant species
TLS Online TPP Program

#Question id: 13231

#Unit 6. System Physiology – Plant

The transmembrane pathway is the route followed by water in which
TLS Online TPP Program

#Question id: 13232

#Unit 6. System Physiology – Plant

Plants that develop root pressure frequently produce liquid droplets on the edges of their leaves, a phenomenon known as