Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 6630
TLS Online TPP Program

#Question id: 9599

The primary donor of PSI, P700, is a dimer of chlorophyll a molecules, in primary donor chlorophyll, additional chlorophylls molecules such as

#Unit 6. System Physiology – Plant
  1. Carotenoids, Pheophytins, and Plastoquinones are bound to the membrane proteins D1 and D2, Which are found in the core of the reaction center
  2. Carotenoids, Pheophytins, and Plastoquinones are bound to the membrane proteins D1 and D2, Which are present on the surface of the reaction center
  3. iron–sulfur proteins,  ferredoxin (Fd), flavoprotein ferredoxin–NADP+ reductase (FNR) are bound to the membrane proteins D1 and D2
  4. D1 and D2 proteins are found in the core of the reaction centre and are the part of photosystem I 
More Questions
TLS Online TPP Program

#Question id: 3825

#Unit 3. Fundamental Processes

Telomeres are the repetitive sequence of T's and G's that are present in the eukaryotes to protect the random cleavage from nucleases. These telomeres are synthesized by the enzyme telomerase. Which of the following are the properties of enzyme telomerase?
TLS Online TPP Program

#Question id: 3826

#Unit 3. Fundamental Processes

Which scientists first gave experimental evidence that DNA is the genetic material?
TLS Online TPP Program

#Question id: 3827

#Unit 3. Fundamental Processes

It takes about the same amount of time for eukaryotic chromosomes to be replicated in vivo as it does for E. coli. Why is this true?
TLS Online TPP Program

#Question id: 3828

#Unit 3. Fundamental Processes

Why does E. coli need both DNA polymerase III and DNA polymerase I?
TLS Online TPP Program

#Question id: 3829

#Unit 3. Fundamental Processes

Why is only one copy of DNA made per cell division cycle in eukaryotes despite the presence of multiple origins of replication?
TLS Online TPP Program

#Question id: 3830

#Unit 3. Fundamental Processes

Why is DNA damage in skin cells from exposure to excessive UV light not completely reversed by photoreactivation?