In cellular respiration ________ reactions produce most of the total ATP that is generated.
anaerobic
anabolic
aerobic
None of the Correct answers are correct.
The Correct Answer is C
A. anaerobic: Anaerobic respiration, such as glycolysis, occurs without oxygen and produces only a small amount of ATP, typically 2 ATP per glucose molecule. It provides quick energy but is not the main source of ATP generation in cells.
B. anabolic: Anabolic reactions involve building larger molecules from smaller ones, such as protein or glycogen synthesis. These processes consume energy rather than produce it, so they do not contribute to ATP generation.
C. aerobic: Aerobic respiration occurs in the presence of oxygen and includes the Krebs cycle and electron transport chain. This pathway produces the majority of ATP, yielding around 34–36 ATP molecules per glucose, making it the primary energy source.
D. None of the Correct answers are correct: This option does not apply because aerobic respiration is the well-established pathway responsible for generating most of the cell’s ATP.
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Related Questions
Correct Answer is D
Explanation
A. late prophase:During late prophase, chromosomes condense and the mitotic spindle forms, but cytokinesis has not yet begun as the cell is still preparing for chromosome alignment.
B. early anaphase:Early anaphase involves the separation of sister chromatids toward opposite poles. Cytokinesis does not start at this point because chromosome separation is still in progress.
C. early prophase:Early prophase is the initial stage of mitosis where chromatin condenses into visible chromosomes. Cytokinesis is not initiated at this stage.
D. late anaphase:Cytokinesis begins during late anaphase, when the cell starts forming a cleavage furrow as the chromosomes near the poles. This process continues into telophase, ultimately dividing the cytoplasm into two daughter cells.
Correct Answer is B
Explanation
False:Supporting cells in nervous tissue that can divide are glial cells, not neurons. Glial cells maintain, protect, and support neuronal function, and they retain the ability to reproduce throughout life. Neurons are specialized cells responsible for transmitting electrical impulses, and they have a very limited ability to undergo cell division once mature. Damage to neurons usually results in permanent loss of function.
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