Why are healthy root nodules pink in Colour? The pink color is from leghemoglobin, a protein that carries oxygen—similar to the hemoglobin in human blood. The nitrogenase enzyme involved in N fixation is sensitive to oxygen and the leghemoglobin helps reduce oxygen concentrations in the area of the nodule where the nitrogenase enzyme is active. […]
What causes the attractive forces between particles in matter?
What causes the attractive forces between particles in matter? The particles that make up some matter are close together and vibrate back and forth. If the motion of particles slows the particles move closer together. This is because the attraction between them pulls them toward each other. Strong attractive forces hold particles close together. What […]
What enzyme digests proteins?
What enzyme digests proteins? The enzyme pepsin plays an important role in the digestion of proteins by breaking down the intact protein to peptides, which are short chains of four to nine amino acids. In the duodenum, other enzymes— trypsin, elastase, and chymotrypsin—act on the peptides reducing them to smaller peptides. Where does the digestion […]
Is Jade worth money?
Is Jade worth money? As one of the most expensive gems in the world, it can sometimes be priced at millions of dollars. The second most expensive form of jade is that which exhibits a lavender hue. This color will be more expensive than other types of non-Imperial green jade, such as those with a […]
Why do cheaters get angry when caught?
Why do cheaters get angry when caught? Getting caught cheating is a shameful act. Cheaters become furious when caught because of the number of people they’ve hurt in the process. Cheaters become furious when caught because of the number of people they’ve hurt in the process. Is it OK to forgive someone who hurt you? […]
What did Rachel Carson do as a marine biologist?
What did Rachel Carson do as a marine biologist? Rachel Carson was a world-renowned marine biologist, author and environmentalist who served as an aquatic biologist and editor-in-chief for the U.S. Fish & Wildlife Service. She has been credited with launching the contemporary environmental movement and awakening the concern of Americans for the environment. Did Rachel […]
What is the relationship between osmosis and diffusion?
What is the relationship between osmosis and diffusion? Osmosis only allows solvent molecules to move freely, but diffusion allows both solvent and solute molecules to move freely. 4. Osmosis happens when molecules move from higher to lower concentrations, but diffusion happens when it is reversed. Is osmosis active or passive? Osmosis is a passive transport […]
Which mechanisms of heat transfer will work in a vacuum quizlet?
Which mechanisms of heat transfer will work in a vacuum quizlet? a. Yes, heat transfer by conduction will occur through a vacuum. Which heat transfer process is increased by profuse sweating? Convective heat exchange increases with increasing air speed and increased differences between air and skin temperature. Evaporation of sweat from the skin cools the […]
What is the difference between actual and theoretical yield?
What is the difference between actual and theoretical yield? Remember, the theoretical yield is the amount of product produced when the entire limiting product is used up, but then actual yield is the amount of product that is actually produced in a chemical reaction. Why is my actual yield higher than theoretical yield? The percent […]
Is filtered water a pure or impure substance?
Is filtered water a pure or impure substance? Water is a pure substance because it only contains one type of molecule. Pure water contains only molecules that are a combination of one oxygen atom… Is oxygen pure or impure? Air is a mixture of gasses, including nitrogen, oxygen, carbon dioxide and water vapour, as such […]