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TLS Online TPP Program

#Question id: 2119

A sodium-potassium pump:

#SCPH28 | Zoology

  1. moves three potassium ions out of a cell and two sodium ions into a cell while producing ATP for each cycle

  2. moves three sodium ions out of a cell and two potassium ions into a cell using energy from ATP hydrolysis

  3. moves three potassium ions out of a cell and two sodium ions into a cell using energy from ATP hydrolysis

  4. move three sodium ions out of a cell and two potassium ions into a cell and generates an ATP in each cycle

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TLS Online TPP Program

#Question id: 298

#I Life Science/ Life Sciences Group – I-V

Water molecules contain _____________ hydrogen bond/s.
TLS Online TPP Program

#Question id: 1738

#SCPH01 Biochemistry

T-cell help for antibody production:
TLS Online TPP Program

#Question id: 15655

#SCPH06 I Botany

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. Next you isolate a mutation, designated MelB–, which gives uninducible melibiase activity. Mapping experiments show that MelB– is linked to Mel1. Using an F' factor that carries the chromosomal region surrounding Mel1, you perform the following genetic tests:

 
Describe the proposal for the type of regulatory functions affected by the MelB– mutation.
TLS Online TPP Program

#Question id: 11535

#SCPH06 I Botany

During IPA pathway in the biosynthesis of auxin using  following enzymes except_____
TLS Online TPP Program

#Question id: 3460

#SCPH06 I Botany

The many eyes hypothesis suggests prey flock because: