Choose the correct subject pronoun to complete the sentences: él, ella, usted, tú, nosotros, nosotras, ustedes, ellos, ellas [1] es feliz  [2] son de Cuba. La niña tiene 8 años y el niño tiene 10 años.  [3] es bonita. Mi mamá y yo somos colombianas. [4] somos muy unidas.   

What is the correct translation for: There is one professor in the class [1]

What molecule temporarily stores high energy electrons harvested from glucose molecules and takes them to the electron transport chain?

If aerobic respiration is so efficient, why don’t all organisms use this as the primary way to make ATP?

Glucose is not our only food source, nor the only one we can utilize in our bodies to generate energy. Other primary sources of energy include other sugars, proteins, and fats. Fat molecules have many bonds, and breaking those bonds provides energy, as we discussed. Therefore, these macromolecules are a convenient way of storing energy, and stored energy is considered potential energy. What metabolic intermediate are fats primarily converted into?

A solution has [H+] = 10-6. It is therefore:

What would happen if cells used high heat to try to speed up chemical reactions instead of using enzymes?

Fatty acid tails are hydrophobic meaning they fear water. This would mean they are nonpolar molecules.

Hydrocarbons only contain hydrogen and carbon and are therefore ___.

Water, H2O, is: