Where does the reaction of the electron transport chain occur? 1. within the mithochondrions matrix 2. inside the cell membrane 3. within the mithochondrions linner membrane

Long term exposure to waves can cause sunburns and skin cancer.

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.