Which of the following is not a reason that humans genetically engineer trees? a. insect resistance b. pharmaceutical production c. faster growth d. none of the above

d. none of the above

Genetic engineering is a field of biotechnology which involves the manipulation of the genome of the organism so as to make it disease free, and suitable for human use by improving the quality of the organism.

Humans genetically engineer trees so as to make them resistant against the insects, for pharmaceutical production and to enhance their growth faster. Therefore, all these reasons supports the use of genetic engineering for trees, hence none of the above is the correct option.

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.