Metabolic Pathways and Energy Molecules

What does ATP stand for?

• Adenosine Triphosphate
• Adenosine Tetraphosphate
• Adenosine Monophosphate
• Adenosine Diphosphate

What does ADP stand for?

• Adenosine Triphosphate
• Adenosine Diphosphate
• Adenosine Monophosphate
• Adenine Diphosphate

What are the 2 types of metabolic pathways? How do they differ?

• Photosynthetic and chemosynthetic pathways
• catabolic pathways and anabolic pathways.

• Oxidative and reductive pathways
• Aerobic and anaerobic pathways

What is the main energy molecule?

• Creatine phosphate (CP)
• Adenosine triphosphate (ATP)
• Nicotinamide adenine dinucleotide (NADH)
• Glucose (C6H12O6)

1st law of Thermodynamics

• Energy transformation law.
• Energy dissipation principle.
• Energy can neither be created or destroyed, only converted.

• Energy generation principle.

2nd Law of Thermodynamics

• Every time a cell converts energy some of it is lost as heat.

• Heat can spontaneously flow from a colder body to a hotter body.
• The total energy of an isolated system always decreases.
• Entropy remains constant in an isolated system.

Energy related pathways are sequential. Why?

• To allow for a more controlled and efficient transfer of energy.

• Energy pathways are random to promote diversity.
• Sequential pathways are less efficient for energy transfer.
• Energy pathways operate independently without regulation.

Where is ribose found?

• Ribose is found in plant cell walls.
• Ribose is found in DNA only.
• Ribose is found in RNA and in all living cells.
• Ribose is found in the mitochondria of bacteria.

Photosynthesis

• Photosynthesis occurs only in animals.
• Photosynthesis requires only water and soil to occur.
• Photosynthesis is the process of converting light energy into chemical energy in plants.
• Photosynthesis is the process of breaking down food in plants.

Where does Photosynthesis take place?

• Nucleus
• Mitochondria
• Chloroplasts
• Ribosomes