New answers tagged

3

In most cases, it's not a good idea to replace glucose with glycerol in animal cell media. Animals do possess the ability to metabolize glycerol, via a pathway starting with the enzyme glycerol kinase. However, glycerol kinase is only expressed in certain cell types, such as liver cells and kidney cells. References: ...


1

As the body mass of an organism decreases, their volume decreases exponentially, so their metabolic needs are also reduced. The result is that small organisms like worms and insects have a much larger surface area to body mass ratio, which lets them passively transfer oxygen into their bodies much more easily. I am by no means an entomologist but most ...


2

The correct answer would be a) rising pCO2. The rising CO2 level in the blood causes an urge to inhale and take in more O2. For how it works, this is controlled by respiratory center: The respiratory centers (RC) are located in the medulla oblongata and pons, which are part of the brain stem. The RCs receive controlling signals of neural, chemical and ...



Top 50 recent answers are included