SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to store nutrients
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to store water
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to transform energy from sunlight into sugar
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to transform sugar into energy
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Detailed explanation-1: -In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose. In mitochondria, through the process of cellular respiration breaks down sugar into energy that plant cells can use to live and grow.
Detailed explanation-2: -Mitochondria carry out a variety of important processes in plants. Their major role is the synthesis of ATP through the coupling of a membrane potential to the transfer of electrons from NADH to O2 via the electron transport chain.
Detailed explanation-3: -In plant cells, chloroplasts convert light energy into chemical energy, and mitochondria consume the chemical energy to produce ATP. The optimal carbon fixation and plant growth require these two energy-transforming organelles to perform strictly coordinated actions.
Detailed explanation-4: -Animal cell only have mitochondria because they obtain energy by the breakdown of food in mitochondria. On the other hand, plant cell have both mitochondria and chloroplast because chloroplast synthesize sugar by photosynthesis. The sugar is then broken down by mitochondria to produce energy for cells.