TLS Online TPP Program

#Question id: 1737


The carrier T-cell epitope on a thymus-dependent antigen:

#XL - Q Biochemistry
  1. Behaves like a hapten

  2. Needs to be polymeric

  3. Need not be physically connected to the B-cell epitope

  4. Stimulates help for the B-cell response

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TLS Online TPP Program

#Question id: 9268

#XL - R Botany

The most active photosynthetic tissue in higher plants is the

TLS Online TPP Program

#Question id: 9269

#XL - Q Biochemistry

The distribution of electrons in the excited molecule is somewhat different from the distribution in the groundstate molecule, Absorption of blue light excites the chlorophyll to a higher energy state than absorption of red light because

TLS Online TPP Program

#Question id: 9269

#XL - R Botany

The distribution of electrons in the excited molecule is somewhat different from the distribution in the groundstate molecule, Absorption of blue light excites the chlorophyll to a higher energy state than absorption of red light because

TLS Online TPP Program

#Question id: 9271

#XL - Q Biochemistry

Chlorophylls a and b are abundant in green plants, and c and d are found in some protists and cyanobacteria. A number of different types of bacteriochlorophyll have been found; which type of chlorophyll is the most widely distributed, shows the distribution of pigments in different types of photosynthetic organisms;

TLS Online TPP Program

#Question id: 9272

#XL - Q Biochemistry

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called

TLS Online TPP Program

#Question id: 9272

#XL - R Botany

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called