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TLS Online TPP Program

#Question id: 2063

In what way do the membranes of a eukaryotic cell vary?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Phospholipids are found only in certain membranes.

  2. Certain proteins are unique to each membrane.

  3. Only certain membranes of the cell are selectively permeable.

  4. Some membranes have hydrophobic surfaces exposed to the cytoplasm while others have hydrophilic surfaces facing the cytoplasm.
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TLS Online TPP Program

#Question id: 24085

#Section 5: Bioprocess Engineering and Process Biotechnology

A reaction is first order in A. If the rate constant of the reaction is 6.00 × 10–3 s–1, what is the half-life (t1/2) of the reaction?
TLS Online TPP Program

#Question id: 24086

#Section 5: Bioprocess Engineering and Process Biotechnology

A reaction is first order in A. If the rate constant of the reaction is 3.45 × 10–3 s–1, what is the half-life (t1/2) of the reaction?
TLS Online TPP Program

#Question id: 24087

#Section 5: Bioprocess Engineering and Process Biotechnology

The half-life (t1/2) of a first-order reaction is 0.100 s. What is the rate constant?
TLS Online TPP Program

#Question id: 24088

#Section 5: Bioprocess Engineering and Process Biotechnology

The half-life (t1/2) of a first-order reaction is 0.950 s. What is the rate constant?
TLS Online TPP Program

#Question id: 24089

#Section 5: Bioprocess Engineering and Process Biotechnology

What percentage of a material will persist after 60 minutes if it’s half life is 30 minutes?
TLS Online TPP Program

#Question id: 24090

#Section 5: Bioprocess Engineering and Process Biotechnology

What percentage of a material will persist after 80 minutes if it’s half life is 20 minutes?