Flashcards- Ch 9 Cellular Respiration

Front

Cellular Respiration is the process that

Back

releases energy from sugar molecules so it can be used by the organism.

Front

Where does Cellular Respiration occur in eukaryotic cells?

Back

Cytoplasm and Mitochondria

Front

Where does Cellular Respiration occur in prokaryotic cells?

Back

Cytoplasm

Front

Cellular respiration is a controlled process where food (glucose) is "burned" by cells for energy. Why is this important? And what controls this process?

Back

If all bonds are broken at once, too much energy would be released at one time.

Enzymes control this process.

Front

Describe the diagram

Back

The substrates enter the active site of the enzyme. this forms the temporary enzyme-substrate complex, which is when the chemical reaction occurs. Products will be released.

Front

purpose of ATP

Back

ATP is the primary energy molecule for cells and stores/releases energy in usable amounts.

Front

Where is the energy stored in ATP molecules?

Back

The bonds between phosphate groups in ATP store energy.

Front

Diagram showing AMP, ADP, and ATP with phosphate groups. Which molecules contain more energy and why?

Back

ATP has the most energy since it has 3 phosphate groups, ADP has more energy than AMP since ADP has 2 phosphate groups.

Front

Describe the conversion between ATP and ADP

Back

ATP (Adenosine Triphosphate) consists of adenine, ribose, and three phosphate groups. It stores energy in high-energy phosphate bonds. When ATP loses a phosphate group, it becomes ADP (Adenosine Diphosphate), releasing energy for cellular work.

Front

Discuss the reduction of this Electron shuttle in cellular respiration

Back

NAD+ (empty electron shuttle) is reduced to NADH by accepting electrons and hydrogen, then carries electrons to later stages of respiration (ETC).