Answer:
The light reactions, also known as photolysis reactions, convert energy from the sun into chemical energy in the form of NADPH and ATP. These reactions must take place in the light and in chloroplasts of plants.
Explanation:
The answer is most likely the second one. It makes the most sense.
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Answer:
chloroplasts and mitochondria.
Explanation:
Chloroplasts and mitochondria are the organelles capable of ATP production by photophosphorylation and oxidative phosphorylation respectively. Chloroplasts are the site for photosynthesis. The light reactions of photosynthesis include splitting of the water molecule in presence of sunlight and transfer of electrons from PS-II to PS-I via electron carrier. During electron transport, a proton gradient is created which in turn drives ATP synthesis.
Mitochondria are the site for aerobic stages of cellular respiration. Glycolysis and Kreb's cycle, the first and second stages of cellular respiration produce NADH and FADH2 during the redox reactions. These reducing powers are oxidized by giving their electrons to the terminal electron acceptor, the oxygen molecule.
Electrons from the reducing powers are carried to oxygen molecules via a series of electron carrier proteins embedded in the inner mitochondrial membrane. During electron transport, an electrochemical gradient is created which in turn drives the ATP synthesis.
To survive and live - and provide food for their offspring
Answer:
<h2>G-A mutation is a point mutation in which one nucleotide is replaced by another nucleotide, it is an example of Transition mutation (a base substitutions that changes a purine nucleotide to another purine.</h2>
Explanation:
1. Defective Mitochondrial Gene Expression Results in Reactive Oxygen Species (ROS).
2. Elevated production of reactive oxygen species (ROS), and increased oxidative stress, results in defects in proper functioning of cell by causing mutation in the DNA and mitochondrial genes.
3. If the mutation is silent mutation, then there is no harm or less harm in the cell, if the mutation is missense or nonsense type then it can affect the functioning of the cell and phenotype of that organism.
4. If their is mutation in mitochondrial tRNA gene, it can affect the translation of mitochondrial mRNA and gene expression.
