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TLS Online TPP Program

#Question id: 4162

Which statement is false concerning aminoacyl-tRNA synthetase?

#Unit 3. Fundamental Processes

  1. It recognizes only one amino acid, but may recognize more than one tRNA.

  2. It requires a conversion from ATP to ADP.

  3. Hydrolysis of pyrophosphate essentially makes its reaction irreversible.

  4. Some synthetases bind the anticodon and others do not.

More Questions
TLS Online TPP Program

#Question id: 2116

#Unit 2. Cellular Organization

When a cell is in equilibrium with its environment, which of the following processes occurs for substances that can diffuse through the plasma membrane?
TLS Online TPP Program

#Question id: 2117

#Unit 2. Cellular Organization

Which of the following statements correctly describes osmosis?
TLS Online TPP Program

#Question id: 2118

#Unit 2. Cellular Organization

Which of the following statements correctly describes the normal tonicity conditions for typical plant and animal cells? The animal cell is in:
TLS Online TPP Program

#Question id: 2119

#Unit 2. Cellular Organization

A sodium-potassium pump:
TLS Online TPP Program

#Question id: 2120

#Unit 2. Cellular Organization

Which one of the following statements about membranes is true?
TLS Online TPP Program

#Question id: 2121

#Unit 2. Cellular Organization

Which of the following membrane activities requires energy from ATP hydrolysis?