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TLS Online TPP Program

#Question id: 1536

Use the following figure to answer the question. According to figure, which of the following statement is incorrect?

#Unit 4. Cell Communication and Cell Signaling

  1. Tumors as well as normal tissues are likely to consist of small number of stem cells that have self-renewal capability and multipotentiality, precursor cells that have limited proliferative potency, and differentiated cells.

  2. Cancer stem cells are thought to be transformed from tissue specific stem cells, precursor cells and/or differentiated cells by genetic/epigenetic mutations.

  3. Cancer stem cells exist in special microenvironment “niche” and seem to keep their resistance to a variety of anti-cancer treatment methods.

  4. Cancer stem cells do not need microenvironment (hypoxic) for the maintenance of stemness, tumorigenesis, and resistance to anti-cancer treatments, chemotherapy and irradiation.

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TLS Online TPP Program

#Question id: 10365

#Unit 6. System Physiology – Plant

Why the nitrogenase enzymes catalyzes the nitrogen fixation reaction only in microanaerobic or anaerobic conditions?
TLS Online TPP Program

#Question id: 10364

#Unit 6. System Physiology – Plant

Which of the following is the most common type of symbiosis occurs between members of the plant family and soil bacteria?
TLS Online TPP Program

#Question id: 10363

#Unit 6. System Physiology – Plant

Free living nitrogen fixing takes place as shown in the following;

             TYPE                                                                                       N-FIXING GENERA

A) Cyanobacteria (blue-green algae)                                        i) Bacillus

B) Aerobic                                                                                     ii) Clostridium

C) Facultative                                                                              iii) Anabaena

D) Anaerobic nonphotosynthetic                                            iv) Rhodospirillum

E) Anaerobic photosynthetic                                                     v) Azospirillum

 Which of the following combination of free living nitrogen fixing bacteria is correct?
TLS Online TPP Program

#Question id: 10361

#Unit 6. System Physiology – Plant

The carbon skeleton for amino acids derives from 3-phosphoglycerate generated during glycolysis is called anaplueratic reaction. Generated amino acids from 3-PGA is that,
TLS Online TPP Program

#Question id: 10360

#Unit 6. System Physiology – Plant

How much ATP require in the nitrogen fixation or conversion of ammonium assimilation in the system?
TLS Online TPP Program

#Question id: 10357

#Unit 6. System Physiology – Plant

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