What is the primary function of cholesterol in the plasma membrane? The cholesterol interacts with the tails of the membrane and gives the membrane unique properties. It assists with stability of the membrane, keeps the membrane from becoming solid at cooler temperatures, and helps anchor molecules, like protein, in the membrane. What role does cholesterol […]

Which type of respiration is used in the making of bread and wine? Alcoholic fermentation is a type of anaerobic respiration that includes glycolysis followed by the conversion of pyruvic acid to ethanol and carbon dioxide and the regeneration of NAD+ from NADH. In what industries is alcohol fermentation used? Alcoholic fermentation (AF) conducted by […]

What are two characteristics of the elements in the first group? Group one elements share common characteristics. They are all soft, silver metals. Due to their low ionization energy, these metals have low melting points and are highly reactive. The reactivity of this family increases as you move down the table. What is the major […]

Which of the six kingdoms is considered extremophiles because they live in extreme harsh environments? archaebacteria What kingdom are considered extremophiles because they love extreme conditions such as high heat high salt concentration or acidic environments? archaea Why are microorganisms called extremophiles? Extremophiles are organisms that live in “extreme environments,” under high pressure and temperature. […]

What is produced at the end of oxidative phosphorylation? Oxidative phosphorylation is the fourth step of cellular respiration, and produces the most of the energy in cellular respiration. Oxidative phosphorylation, the process where electron transport from the energy precursors from the citric acid cycle (step 3) leads to the phosphorylation of ADP, producing ATP. What […]

What happens to biomass as you move up an energy pyramid? The pyramid of biomass shows the relative number of organisms at each trophic level. Note that the number of organisms decreases significantly at each level. The pyramid of energy shows that the variety and number of species decreases as you move to higher trophic […]

Are humans predators? Human hunters and fishers have emerged as extraordinary predators. With a large population, wide distribution, advanced killing technology and more, exploitation of prey by humans influences ecological and evolutionary processes globally. Do human have natural predators? Although human beings can be attacked by many kinds of animals, man-eaters are those that have […]

What caused the continents to shift? It’s All About the Plates Heat from the Earth’s interior causes this motion to happen via convection currents in the mantle. Over a period of millions of years, this slow motion caused the single supercontinent to split into the seven continents you see today. What is it called when […]

What is the number of hydrogen atoms in 6NH3? 18 How many atoms are in 3H2O? 3H2O has 6 hydrogen atoms and 3 oxygen atoms. However, drawing out each equation is NOT PRACTICAL. The number of atoms can be counted without having to draw it out. To mathematical find the number of elements that make […]

Is the head of the phospholipid polar or nonpolar and is it hydrophilic or hydrophobic? Phospholipids consist of a glycerol molecule, two fatty acids, and a phosphate group that is modified by an alcohol. The phosphate group is the negatively-charged polar head, which is hydrophilic. The fatty acid chains are the uncharged, nonpolar tails, which […]