Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 18993
TLS Online TPP Program

#Question id: 9594

The first reaction that converts electron energy into chemical energy—What will happened in  the primary photochemical event—

#XL - Q Biochemistry
  1. The transfer of an electron from the excited state of a chlorophyll in the reaction centre to an acceptor molecule-pheophytin
  2. The reaction centre chlorophyll is in an oxidized state (electron deficient, or positively charged), and the nearby electron acceptor molecule is reduced (electron rich, or negatively charged)
  3. The reaction centre chlorophyll is in an oxidized state (electron deficient, or negatively charged), and the nearby electron acceptor molecule is reduced (positively charged)
  4. The transfer of an electron from the excited state of a chlorophyll in the reaction centre to an acceptor molecule- plastocyanin
More Questions
TLS Online TPP Program

#Question id: 11444

#XL - R Botany

Ecologist have proposed following explanation to lead maximize biodiversity at tropic.

A. Higher productivity in the tropics allows for more species present

 B. Old communities have greater species than younger community

 C. Natural enemies such as predators and parasite limit competition in the tropics, which allows more species to coexist

D. Very less intensity of disturbances in the tropics promote high succession diversity
TLS Online TPP Program

#Question id: 4942

#XL - T Zoology

Which of the following has not yet been synthesized in laboratory experiments studying the origin of life?
TLS Online TPP Program

#Question id: 15173

#XL - S Microbiology

Microbes such as Chlorobium and Chromatium develop as visible green and purple zones. These microorganisms use
TLS Online TPP Program

#Question id: 11640

#XL - S Microbiology

Which of the following is not characteristic of ciliates?
TLS Online TPP Program

#Question id: 1719

#XL - Q Biochemistry

Langerhans' cells are found in: