Is human blood all the same? "Yes." You may say. "It's all red." Well it's not as simple as you might think. Blood is made up of different parts such as red blood cells (红血球) white blood cells and platelets (血小板). Two chemical molecules (分子) on the red blood ...
One molecule of glucose makes 30 molecules of ATP. How many molecules of glucose are needed to make 6000 molecules of ATP in aerobic respiration? A. 3600 B. 200 C. 100 D. 7200 How many net ATP would be produced by glycolysis per glucose molecule in t...
In humans, one gene consists of how many nucleotide pairs? Approximately how many nucleotide bases are in the human genome? How many sequences of nitrogenous bases are there in a gene? A skin cell in a cat contains a total of 38 chromosomes. How many DNA molecules would therefore be found...
Although genes get a lot of attention, it’s the proteins that perform most life functions and even make up the majority of cellular structures. Proteins are large, complex molecules made up of smaller subunits called amino acids. Chemical properties that distinguish the 20 different amino acids ...
For many years, scientists couldn’t figure out how atoms and molecules combined to make living things. Plants, fish, dinosaurs, and people are made of atoms and molecules, but they are put together in a more complicated way than the molecules in the primitive ocean. What’s more, living ...
"It was a real surprise when we found that the mosquito's CO2receptor neuron, designated cpA, is an extremely sensitive detector of several skin odorants as well, and is, in fact, far more sensitive to some of these odor molecules as compared to CO2," said Anandasankar Ray, an associate...
Instead of starting with metal, plastic, or ceramic, a 3-D printer for organs and tissues uses bioink: a printable material that contains living cells.The bulk of many bioinks are water-rich molecules called hydrogels. Mixed into...
These properties are important in detecting ethanol in a sample by infrared (IR) spectroscopy. Read More Types of Devices: Intoxilyzer Diagram of the Intoxilyzer This device uses infrared (IR) spectroscopy, which identifies molecules based on the way they absorb IR light. Molecules...
We use this framework to assess existing data and to ask the question, “How many distinct primary structures of proteins (proteoforms) are created from the 20,300 human genes?” We also explore prospects for improving measurements to better regularize protein-level biology and efficiently ...
It is more common in females of childbearing age compared with males of the same age-group, and the incidence often reaches a peak in adults after 60 years of age with equal sex distribution. Many patients are asymptomatic or only present with mild mucocutaneous hemorrhage; however, severe ...