Question

help me please

4 Glycolysis, the Emden-Meyerhoff pathway, and the pentose-phosphate pathway can all function: only in the presence of oxygen. only in the absence of oxygen. both in the presence or absence of oxygen. none of the above D. A reduced molecule: has lost electrons. has become more positive in charge. has gained electrons. is an electron donor. The br into sr trappir molecu 10. Bacillus and Lactobacillus are not in the same family. This indicates that which of the following is NOT sufficient to assign an organism to a taxonomic category? biochemical characteristics amino acid sequencing morphological characteristics serology In an An The cont plate ha: 75 colon In the lactose operon, if the bacterial cell is exposed to lactose, then the operon: will be turned on. will be turned off. will be unaffected.

Answer 1

3. C. Both in the presence or absence of oxygen.

Both glycolysis and pentose phosphate patway happen in the cytoplasm and they do not use oxygen in their pathway. So both can happen in the presence or absence of oxygen.

4. A reduced molecule C.has gained electron

Addition of electron is reduction and removal of electron is oxidation.

5. A. Biochemical characteristics. (Lacto bacillus does not produce spores)

6. In the lactose operon if the bacterial cell is exposed lactose, then the operon A. will be turned on.

When there is only lactose available as an energy source, it has to turn on lac operon to get energy.