DNA contains the information to makeproteins, which carry out all the functions and characteristics of living organisms. ... In DNA, each protein is encoded by a gene (a specific sequence of DNA nucleotides that specify how a single protein is to be made).
I believe the answer to this question is (D) habitat fragment. Habitat fragmentation is the process in which the loss of habitat causes a division in a larger habitat, resulting in smaller areas that are isolated from each other. In this the tigers are separated from other inhabitable nearby areas.
Adding the inhibitor to the yeast cells in the petri dish would likely cause an increase oxygen usage by the cell.
HOW DO YEAST RESPIRE?
- Yeast are unicellular organisms that belong to the kingdom Fungi. Yeasts are capable of respiring anaerobically i.e. can respire without oxygen.
- Yeast can, however, respire both aerobically and anaerobically. Yeast undergoes an anaerobic respiration called FERMENTATION, which is used to produce ethanol (alcohol) from pyruvate (product of glycolysis).
- If a substance that inhibits the conversion of pyruvate to ethanol is added to yeast cells growing in a petri dish, the process of fermentation will be inhibited. Hence, the yeast cells will have to switch to aerobic respiration and make use of oxygen.
Therefore, adding the inhibitor to the yeast cells in the petri dish would likely cause an increase oxygen usage by the cell.
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