TLS Online TPP Program

#Question id: 10252


When molecular oxygen is unavailable—for example, in plant roots in flooded soils—glycolysis can be the main source of energy for cells, How?

#Unit 6. System Physiology – Plant
  1. In O2 deprived condition, the fermentative pathways are carried out in the chloroplast, must reduce pyruvate to recycle the NAD produced by glycolysis
  2. under lowoxygen conditions (hypoxia), Pyruvate is reduce with loss of its carboxyl group as CO2 , to yield the acetyl group of acetyl-coenzyme A
  3. O2 deprived condition, the fermentative pathways are carried out in the cytosol, must reduce pyruvate to recycle the NADH produced by glycolysis
  4. pyruvate is converted under hypoxic or anaerobic conditions to propanol and CO2 by fermentative pathways  which recyle the NADH produced by glycolysis
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TLS Online TPP Program

#Question id: 28239

#Unit 5. Developmental Biology

 In principles of stem cell regulation involve Extracellular mechanisms leading to intracellular changes, for these changes various intracellular regulatory mechanisms include, except? 

TLS Online TPP Program

#Question id: 2483

#Unit 2. Cellular Organization

MAP2 and Tau are examples of microtubule:

TLS Online TPP Program

#Question id: 29078

#Unit 10. Ecological Principles

A specific kind of parasitism proposes that  in which cuckoos or cowbirds repeatedly check their host’s nests and destroy all eggs if their owner is not present. If the parasite egg has been removed, they destroy the host’s nest and kill or injure the nestlings, this is an example of____

TLS Online TPP Program

#Question id: 2399

#Unit 2. Cellular Organization

Approximately how many molecules of ATP are produced from the complete oxidation of one molecule of glucose (C6H12O6) in aerobic cellular respiration?

TLS Online TPP Program

#Question id: 7268

#Unit 5. Developmental Biology

Match the columns and choose the correct option.

Column I           

Column II

A.    Progress zone

i.                    thickening of the ectoderm at the apex of the developing limb bud

 

B.     Apical ectodermal ridge

ii.                  The cells found within the most posterior region

C.     Zone of polarizing activity

iii.                The highly proliferative mesenchyme that fuels limb bud growth