Question

In what organelle do the Kreb's cycle and the electron transport chain take place?
(1 point)
0. chloroplast
O mitochondria
O cytoplasm
o nucleus

Answer 1

Answer:

mitochondria

Explanation:

-The aerobic phases of cellular respiration in eukaryotes occur within organelles called mitochondria. These aerobic phases are the Krebs Cycle and the electron transport chain.

Answer 2

The Kreb's cycle and the electron transport chain take place in the MITOCHONDRIA.

• Cellular respiration is an aerobic process, i.e., a metabolic process that requires oxygen (O2) by which energy from foods is used to synthesize ATP, carbon dioxide (CO2), and water (H2O).

• The three stages of cellular respiration are glycolysis, Kreb's cycle (also known as the citric acid cycle), and the electron transport chain.

• Glycolysis is an anaerobic pathway (i.e., does not require O2) and occurs in the cytoplasm.

• The Kreb's cycle and the electron transport chain (ETC) are both aerobic processes that occur in the intern membrane of the mitochondria.

In conclusion, Kreb's cycle and the electron transport chain occur in the mitochondria.

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