Why do living things store energy in lipids? Why does lipid catabolism produce more ATP? Why does life use carbohydrates as signaling molecules, and proteins as enzymes? Why the basic structure of a cell membrane (bi-layer) is proteins and lipids?
Like allviruses, HIV treads the fine line that separates living things from nonliving things. Viruses lack the chemical machinery that human cells use to support life. So, HIV requires a host cell to stay alive and replicate. To reproduce, the virus creates new virus particles inside a host ...
Transport proteins help move things across the cell membrane. There are many other important functions of proteins too. The function of nucleic acids is to store information. Lipids function is to store energy which is the same as carbohydrates, but lipids release more energy. Lipids release 9 ...
Not only do they permanently damage clothing and other materials -- their most lasting impression, really, is on our psyches. Keep reading and you'll learn all about 10 of the most infamous stains ever to leave their mark on human possessions -- and our minds, too. Contents Shrouded in...
(a) Give three examples of homeostasis. (b) How do they work? Why is homeostasis important to living things? What is the reason for homeostasis? What role does the skeletal system have in maintaining homeostasis? Explain what homeostasis is and why it is so important to the proper function...
“I’d like to see a rethinking of how we define reefs that are worth protecting.”— Andréa Grottoli“What mattered was the size of the corals’ energy reserves, especially stored lipids,” explains Grottoli. “When we starve, our bodies metabolize fat, and other living things do the sa...
“They tend to have more lipids in their tissues, they tend to be better at feeding from the water column, things like that, whereas the ones that are really good at capturing light are also then really susceptible [to bleaching] when the temperature is high.” Whether or not memory also...
How do plants use starch? How does starch end up in our food? Question 2: Describe an experiment we can use to test whether a food contains starch. What results would tell us that there is starch in the food? Question 3: Some bacteria can break down starch and use it as food, ...
HDL not only transports excess lipidsto the liver for disposal, but it also transports cholesterol to organs such as the adrenals, ovaries, and testes for steroid hormone synthesis. Many of the strategies discussed here that lower triglycerides are also known to raise HDL. ...
“Do this over and over again until your scale reads the target weight,” bearing in mind his suggested 16:1 water-to-grounds ratio. Phillips has a slightly stricter technique, saying, “Proceed to add the remaining amount of water over a series of pours, adding some, ...