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TLS Online TPP Program

#Question id: 23841

Which step of myosin movement along the actin filament is performed in the absence of ATP?

#Unit 2. Cellular Organization
  1. Release of myosin head from the actin filament.
  2. The myosin head is firmly attached to the actin filament.  
  3. Myosin head grabs the actin filament tightly.
  4. Myosin head step out between actin filaments.
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TLS Online TPP Program

#Question id: 2552

#Unit 2. Cellular Organization

Which of the following statements about the electron transport chain is true?
TLS Online TPP Program

#Question id: 2553

#Unit 2. Cellular Organization

Where are the proteins of the electron transport chain located?
TLS Online TPP Program

#Question id: 2554

#Unit 2. Cellular Organization

In chemiosmosis, what is the most direct source of energy that is used to convert ADP + i to ATP?
TLS Online TPP Program

#Question id: 2555

#Unit 2. Cellular Organization

 Energy released by the electron transport chain is used to pump H+ ions into which location in eukaryotic cells?
TLS Online TPP Program

#Question id: 2556

#Unit 2. Cellular Organization

Which of the following processes generates a proton-motive force in mitochondria?
TLS Online TPP Program

#Question id: 2557

#Unit 2. Cellular Organization

In liver cells, the inner mitochondrial membranes are about five times the area of the outer mitochondrial membranes. What purpose must this serve?