Question

substrate - level phosphorylation is used to make: atp nadh pyruvate question 7 1 pts a reaction that absorbs energy from its surroundings is called endergonic exergonic question 8 1 pts compared to adp, the molecule atp has: lower free energy higher free energy

Explanation:

• Question 6: Substrate - level phosphorylation is a metabolic reaction that results in the formation of ATP by the direct transfer of a phosphoryl (PO₃²⁻) group to ADP from another phosphorylated compound. NADH is produced in redox reactions (such as in glycolysis and the citric acid cycle), and pyruvate is a product of glycolysis.
• Question 7: An endergonic reaction is a chemical reaction where energy is absorbed from the surroundings. In contrast, an exergonic reaction releases energy to the surroundings.
• Question 8: ATP (adenosine tri - phosphate) has higher free energy than ADP (adenosine di - phosphate). When the terminal phosphate bond in ATP is broken (hydrolyzed), energy is released. This energy is used to drive various cellular processes.

Answer:

• Question 6: ATP
• Question 7: endergonic
• Question 8: higher free energy