TLS Online TPP Program

#Question id: 2174


The major ATP-powered pump responsible for maintaining ion gradients across the plasma membrane of mammalian cells is:

#Unit 2. Cellular Organization
  1. the calmodulin-activated plasma membrane Ca2+ ATPase.

  2. the sarcoplasmic reticulum Ca2+ ATPase.

  3. the vacuolar F-class proton pump.

  4. the plasma-membrane Na+/K+ ATPase.

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TLS Online TPP Program

#Question id: 26438

#Unit 3. Fundamental Processes

 Preferential removal of bases in pairs that have oxidized guanine is designed to minimize mutations using different Mut system having specific functions match them correctly

TLS Online TPP Program

#Question id: 5731

#Unit 8. Inheritance Biology

If an individual is heterozygous for this translocation, the consequence in meiosis will be as follows:

A) Segregation results in a + c in one Gametes and b + d in another gametes, have duplication and deficiency so unable to produce viable offspring

B) Segregation results in a + b in one Gametes and c + d in another gametes, have normal chromosome so all viable offspring produced

C) Segregation results in a + d in one Gametes with normal chromosome and b + c in another gametes contains translocation arrangement, all viable offspring produced

D) Segregation results in a + d in one Gametes with normal chromosome, will produced viable offspring while b + c in another gametes contains translocation arrangement, will produce non viable offspring.

TLS Online TPP Program

#Question id: 16311

#Unit 7. System Physiology – Animal

What is stress?

TLS Online TPP Program

#Question id: 10355

#Unit 6. System Physiology – Plant

The conversion of ammonium to amino acids requires two enzymes such as GS and GOGAT,

a) High levels of light and carbohydrate—conditions that stimulate plastid GS and Fd-GOGAT

b) Conditions of ample energy inhibit GS and GOGAT

c) The stimulation of GS and GOGAT, they favor nitrogen assimilation into glutamine and glutamate, compounds that are rich in carbon and participate in the synthesis of new plant materials

d) In energy-limited conditions inhibit GS and GOGAT

Which of the following statements about GS and GOGAT is correct?

TLS Online TPP Program

#Question id: 26511

#Unit 3. Fundamental Processes

There are two classes of snoRNPs involved in rRNA processing in nucleolus, so choose which of the following is correctly matched with their function 
a.The box H/ACA snoRNPs are involved in 2-O-methylations
b.The box H/ACA snoRNPs are involved in pseudouridylylation
c.The box C/D snoRNPs function in 2-O-methylations
d.The box C/D snoRNPs function in pseudouridylylation