<h2>Answer:</h2>
While performing any kind of experiment in lab one must be very careful about contamination from other resources.
If you had stored the beaker uncovered for a week, there are 100% chances that your sample will get contaminated either from airborne bacteria in the atmosphere of the lab, other bacteria's from surroundings, or viruses or fungi or any other kind of microbes. If beaker is open there also dust particles that penetrate in it.
So, It is necessary that you should cover your beaker properly with plastic or glass lid or aluminum foil etc while incubation for the smooth results of your experiment.
El olfato es vital para la supervivencia de la mayoría de humanos y animales, ya que les permite rastrear alimentos y agua, encontrar pareja e incluso comunicarse.
ATP and NADPH
The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast. Electron carrier molecules are arranged in electron transport chains that produce ATP and NADPH, which temporarily store chemical energy
What is Electron transport chains in Photosynthesis ?
The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation.
- It occurs in mitochondria in both cellular respiration and photosynthesis.
- The primary task of the last stage of cellular respiration, the electron transport chain, is to transfer energy from the electron carriers to even more ATP molecules, the "batteries" which power work within the cell
Learn more about Electron transport chain here:
brainly.com/question/18686654
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