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TLS Online TPP Program

#Question id: 2202

The distribution of K+ across an artificial membrane was measured, and the concentrations were found to be equal on both sides. Which of the following statements is true about the distribution of K+?

#XL - Q Biochemistry

  1. K+ must be at equilibrium across the cell membrane.

  2. K+ cannot be at equilibrium across the membrane.

  3. There cannot be a membrane potential under these conditions.

  4. More information is needed to determine whether K+ is at equilibrium.

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TLS Online TPP Program

#Question id: 11575

#XL - T Zoology

Fight-or-flight reactions include activation of the ________.
TLS Online TPP Program

#Question id: 1573

#XL - S Microbiology

Which cells and which signaling molecules are responsible for initiating an inflammatory response?
TLS Online TPP Program

#Question id: 2251

#XL - Q Biochemistry

Differences between cotransport and active ion transport include
TLS Online TPP Program

#Question id: 4141

#XL - T Zoology

Bacterial ribosomes:
TLS Online TPP Program

#Question id: 12911

#XL - S Microbiology

Match the following:
A. DNA polymerases              i. Alkaline phosphatase        a.RNA-dependent DNA polymerase, used in cDNA synthesis
B. Reverse transcriptase        ii. T4 DNA ligase                    b. Thermostable DNA polymerase used in PCR
C. Ligases                                 iii.  AMV-RT                            c. Removes 5′-phosphates from DNA and RNA
D. Phosphatases                     iv. Taq DNA pol                      d. Links 5′-phosphate and 3′-hydroxyl ends via phosphodiester bond