Question

[A] Plant cell mitochondria consume oxygen by aerobic respiration.

Options:
Option 1: True
Option 2: False
Option 3: Only during photosynthesis
Option 4: In the absence of light

Answer 1

Plant cell mitochondria consume oxygen by aerobic respiration. Plants undergo cellular respiration.

Step-by-step explanation:

Option 1: True

Plant cell mitochondria consume oxygen by aerobic respiration. Oxygen is the terminal electron acceptor for the electron transport chain (ETC) in mitochondria, which is responsible for producing ATP. If oxygen is not present, the ETC becomes backed up, shutting down the pathways of glucose metabolism and eventually causing the cells to die.

Plants undergo cellular respiration in order to conduct metabolic processes during both light and dark times. They need both photosynthesis and respiration, as they contain both chloroplasts and mitochondria.