Biochemistry

It provides the energy cells need to survive.

The kidneys secrete a variety of hormones, including erythropoietin, and the enzyme renin. Erythropoietin is released in response to hypoxia (low levels of oxygen at tissue level) in the renal circulation. It stimulates erythropoiesis (production of red blood cells) in the bone marrow. Calcitriol, the activated form of vitamin D, promotes intestinal absorption of calcium and the renal reabsorption of phosphate. Part of the renin-angiotensin-aldosterone system, renin is an enzyme involved in the regulation of aldesterone levels.

Hydrolysis of carbohydrates is a chemical reaction where water is used to break down complex carbohydrates into simpler sugars like glucose, fructose, and galactose. This reaction is important for digestion and absorption of carbohydrates in the body.

Amino acids contain an amine group (NH2) and a carboxyl group (COOH), whereas lipids are primarily composed of hydrocarbons and do not contain these functional groups.

A nucleotide consists of a nitrogenous base (adenine, thymine, cytosine, guanine, or uracil) which is connected to a deoxyribose sugar which in turn is bonded to a phosphate. All bonds are covalent bonds within the nucleotide.

Taste bud cells are eukaryotic cells. They are complex cells that contain a nucleus and other membrane-bound organelles.

At normal temperature and pressure only 4 ml of oxygen is dissolved in one liter of water or plasma. So molecule of hemoglobin is designed by nature in such a way that, it contains 4 atoms of iron in it ( and so it carries 4 molecules of oxygen ) and have affinity for oxygen, large enough to hold it, when there is high concentration of oxygen, as in lung and small enough to let the oxygen go, where the concentration of oxygen falls down in interstitial compartment . That's the beauty of hemoglobin molecule. So blood can carry 70 times more oxygen than what water or plasma can do. It means about 280 ml / liter.

Acetone is used as a washing agent because it is a powerful solvent that can dissolve a wide range of substances, making it effective at removing grease, oil, and other contaminants from surfaces. Additionally, acetone evaporates quickly, leaving behind a clean surface with minimal residue.

No, anions and cations do not share electrons during ionic bonding. In ionic bonding, cations lose electrons to anions, resulting in the formation of an ionic bond based on electrostatic attraction between the positively and negatively charged ions.

One [glycerin] glycerol molecule attached to three lipid [fatty acid] molecules.

Well, if you cut the protein with a sagittal cut then you release a high amount of oxygen and hydrogen. When you have other macromolecules and cut them with a coronal cut, then you have a pH of 7. After looking deeper in the protein you find that the only element protein has is Nitrogen.

A sac-like vessel is a structure that resembles a small bag or pouch. It is typically used for storing or transporting fluids in various organisms, such as the bladder in humans or the swim bladder in fish.

ATP (adenosine triphosphate) is primarily synthesized in the mitochondria of the cell through a process called cellular respiration, specifically during the electron transport chain. It can also be generated in the cytoplasm through glycolysis. Once produced, ATP is used as the primary energy source for cellular processes in various locations throughout the cell.

Yes, the electron transport chain is present in both animals and plants. It is a crucial process in cellular respiration where energy is converted from electrons passed along a series of protein complexes to form ATP, the cell's energy currency.

CaCO3, calcium carbonate can be either a reactant or a product. If it comes at the beginning of a reaction, then it is a reactant. If it comes at the end of the reaction, then it is a product.

Common preservatives used for urine preservation include boric acid, sodium azide, and hydrochloric acid. Boric acid is effective for preserving urine samples for bacterial culture, while sodium azide helps to prevent bacterial growth by inhibiting enzymatic activity. Hydrochloric acid is used to lower the pH of urine samples to inhibit bacterial growth and degradation of compounds like glucose and proteins.

Salivary amylase typically takes around 30 minutes to begin breaking down starch into maltose at 37 degrees Celsius. However, complete digestion of starch by salivary amylase may take longer and depends on various factors such as the concentration of the enzyme and starch, pH levels, and other digestive processes that occur in the gastrointestinal tract.

Emulsifiers are commonly found in lotions and foods, however, some are very dangerous. Their function is to interact with fatty acids, protein and water to make oil water mixtures stable. In my mind, I don't want any emulsifiers messing with my body over the long term.

I avoid them in food and cosmetics.

The only company making emulsifier free lotion is Ceela naturals.

Microbial lipase is an enzyme produced by microorganisms such as bacteria and fungi that catalyzes the breakdown of fats (lipids) into fatty acids and glycerol. This enzyme is widely used in various industrial processes, including food processing, detergent production, and biodiesel production due to its ability to efficiently hydrolyze fats.

No, it is false. While the ribosomes synthesize proteins, the endoplasmic reticulum modifies and folds them, and the Golgi apparatus then further processes and packages them, not all synthesized proteins are destined for secretion. Some proteins are used within the cell for various functions such as structural support, enzymatic reactions, or signaling pathways.

Yes, coconut oil is soluble in ethyl alcohol to some extent, as both are nonpolar substances. However, the solubility may be limited depending on the concentration of coconut oil and alcohol in the mixture.

Gel electrophoresis is a technique used to separate DNA, RNA, or proteins based on their size and charge. By applying an electric field to the gel, molecules move through the gel at different rates depending on their size, allowing for the separation of molecules of different sizes. This technique is commonly used in molecular biology and biochemistry research.

How electrophoresis works is that it combines the polarity and the size of the molecule by showing how much that certain molecule moves. With DNA scientists use restriction enzymes which cut a piece of DNA out of the DNA strand using a protein that looks for a certain sequence of nucleotides (called a restriction site). DNA is not the same for everyone so the space between restriction sites can be larger or smaller. How electrophoresis works is the smaller molecules move farther down the agarose gel and the larger molecules don't. All proteins are very large and don't differ as much in size as the DNA cut by the restriction enzymes, which does not show the different lines you would see in DNA electrophoresis.

The reason the DNA moves down is because it is negatively charged. So the anode (positive end) is placed at the bottom which attracts the DNA. But the spaces in the agarose gel stop larger DNA and let smaller pieces go farther. Proteins on the other hand do not have as clean of a charge as the DNA, which makes the attraction from the cathode less strong. Also proteins are easily denatured in the agarose gel which makes the process have no point what so ever.