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TLS Online TPP Program

#Question id: 3868

The sigma factor of E. coli RNA polymerase: 

#XL - Q Biochemistry

  1. associates with the promoter before binding core enzyme.

  2. combines with the core enzyme to confer specific binding to a promoter.

  3. is inseparable from the core enzyme.

  4. is required for termination of an RNA chain.

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TLS Online TPP Program

#Question id: 2083

#XL - S Microbiology

Sphingolipids are considered amphipathic glycolipids if:
TLS Online TPP Program

#Question id: 2084

#XL - S Microbiology

Which two organelles are responsible for producing phospholipids and sphingolipids?
TLS Online TPP Program

#Question id: 2085

#XL - S Microbiology

Cholesterol mixes with phospholipids in a biomembrane because cholesterol molecules are
TLS Online TPP Program

#Question id: 2086

#XL - S Microbiology

Which of the following is (are) not present in biomembranes?
TLS Online TPP Program

#Question id: 2087

#XL - S Microbiology

Phospholipids with short or unsaturated fatty acyl chains
TLS Online TPP Program

#Question id: 2088

#XL - S Microbiology

Lipid droplets arise from the