ATP: structure, function and synthesis

When living cells break down molecules of food, energy is

• created by the blood

• stored as ADP

• released as DNA

• stored as ATP

• created in the nucleus

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Where is the majority of ATP’s energy stored?

• the phosphate closest to the ribose molecule

• the second (middle) phosphate

• the third (terminal) phosphate

Tags

NGSS.HS-LS1-7

How much energy is potentially released from an ATP molecule?

• 10.6 kilocalories

• 3.7 kilocalories

• 7.3 kilocalories

Tags

NGSS.HS-LS1-7

ATP formation is best described by which of the following statements?

• ATP is formed as the hydrogen concentration gradient drives electrons down the electron transport system.

• ATP is formed by directly using the energy released from electrons as they travel down the electron transport system.

• The energy released from electrons is used to create a proton gradient, which is then used to power ATP production.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which of the following statements about glycolysis is FALSE?

• It occurs in the cytoplasm.

• It requires atmospheric oxygen.

• It results in two molecules of pyruvic acid.

The Krebs cycle occurs in the:

• cytoplasm

• matrix

• stroma

The carbon-compound that enters the Krebs cycle is:

• acetyl-CoA

• citric acid

• pyruvic acid

Tags

NGSS.HS-LS2-3

What is the purpose of fermentation?

• alternative method of freeing up NAD in order to keep glycolysis running

• keep the Krebs cycle running in the absence of oxygen

• using something other than oxygen as the final electron acceptor in order to keep the electron transport system running

Tags

NGSS.HS-LS2-3

ATP synthase is an enzyme located in which organelle in animal cells?

• Chloroplasts

• Nucleus

• Mitochondria

• Lysosome

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

The breakdown of organic compounds to produce ATP is known as

• homeostasis

• transpiration

• cellular respiration

• photosynthesis

• dehydration synthesis

Tags

NGSS.HS-LS1-7