Question

which of the following uses glucose for carbon and energy? chemoheterotroph photoautotroph chemoautotroph photoheterotroph question 8 (1 point) saved the use of enzymes is necessary to increase the activation energy requirements of a chemical reaction. true false question 9 (1 point) saved which of the following statements about anerobic respiration is false? the complete kreb;s cycle is utilized. it involves the reduction of an organic final electron acceptor it generates atp.

Explanation:

• For the first question, chemoheterotrophs use organic compounds like glucose for carbon and energy. Photoautotrophs use light energy and carbon - dioxide, chemoautotrophs use inorganic compounds for energy and carbon - dioxide for carbon, and photoheterotrophs use light for energy and organic compounds for carbon.
• For the second question, enzymes lower the activation energy of a chemical reaction, not increase it.
• For the third question, in anaerobic respiration, the Krebs cycle is not fully utilized. Anaerobic respiration involves the reduction of an organic final electron acceptor and generates ATP.

Answer:

• First question: chemoheterotroph
• Second question: False
• Third question: It generates ATP.