Question

the overall important product of cellular respiration is
○ glucose
○ oxygen
○ atp
○ carbon dioxide
○ water
which stage of cellular respiration produces the most atp?
□ glycolysis
□ krebs cycle
□ electron transport chain
where does cellular respiration mostly take place?
○ cytoplasm
○ chloroplast
○ mitochondria
○ nucleus

Explanation:

• Cellular respiration is the process by which cells convert glucose and oxygen into energy. The main goal is to produce ATP (adenosine triphosphate), which is the energy currency of the cell. Glucose is the starting molecule, oxygen is used in the process, carbon dioxide and water are waste products.
• In cellular respiration, the Electron Transport Chain (ETC) produces the most ATP. Glycolysis produces a small amount of ATP (net 2 ATP per glucose), the Krebs Cycle also produces a limited amount (about 2 ATP per glucose directly, but more indirectly through electron carriers), while the ETC can produce around 28 - 32 ATP per glucose through oxidative phosphorylation.
• Cellular respiration mostly takes place in the mitochondria. Glycolysis occurs in the cytoplasm, but the more energy - intensive steps (Krebs Cycle and Electron Transport Chain) occur in the mitochondria. Chloroplasts are involved in photosynthesis, and the nucleus is mainly for storing genetic information.

Answer:

• First question: ATP
• Second question: Electron Transport Chain
• Third question: mitochondria