Answer the following question given this paragraph: Fluid Mosaic Model In 1972, S. Singer and Garth L. Nicolson proposed a new model of the plasma membrane that, compared to earlier understanding, better explained both microscopic observations and the function of the plasma membrane. This was called the fluid mosaic model. The model has evolved somewhat over time, but still best accounts for the structure and functions of the plasma membrane as we now understand them. The fluid mosaic model describes the structure of the plasma membrane as a mosaic of componentsincluding phospholipids, cholesterol, proteins, and carbohydratesin which the components are able to flow and change position, while maintaining the basic integrity of the membrane. Both phospholipid molecules and embedded proteins are able to diffuse rapidly and laterally in the membrane. The fluidity of the plasma membrane is necessary for the activities of certain enzymes and transport molecules within the membrane. Plasma membranes range from 510 nm thick. As a comparison, human red blood cells, visible via light microscopy, are approximately 8 m thick, or approximately 1,000 times thicker than a plasma membrane. (Figure 3.18). Q: What model describes the structure of the plasma membrane as a mosaic of components? Choices: - solid mosaic model - sensors mosaic model - coolant mosaic model - fluid mosaic model A:
fluid mosaic model
(Question)
Answer the following question given this paragraph: Solubility There is usually a limit to how much solute will dissolve in a given amount of solvent. This limit is called the solubility of the solute. Some solutes have a very small solubility, while other solutes are soluble in all proportions. Table 9.2 "Solubilities of Various Solutes in Water at 25C (Except as Noted)" lists the solubilities of various solutes in water. Solubilities vary with temperature, so Table 9.2 "Solubilities of Various Solutes in Water at 25C (Except as Noted)" includes the temperature at which the solubility was determined. Table 9.2 Solubilities of Various Solutes in Water at 25C (Except as Noted). Q: The limit to how much solute will dissolve in a given amount of solvent is called what? Choices: - density - potency - strength - solubility A:
(Answer)
solubility
Ques: Answer the following question given this paragraph: Proteins play a variety of important roles in biochemical systems. Some of the most common protein functions are listed below:. Q: What plays a variety of important roles in biochemical systems? Choices: - mutation - reactants - bacteria - protein A:
Ans: protein
(Q).
Answer the following question given this paragraph: Matter typically exists in one of three states: solid, liquid, or gas. The state of a given substance is a physical property. Some substances exist as gases at room temperature (such as oxygen and carbon dioxide), while others (like water and mercury metal) exist as liquids. Most metals exist as solids at room temperature. All substances can exist in any of these three states. Q: Most metals exist in which form at room temperature? Choices: - gases - liquids - oils - solids A:
(A).
solids
Ques:Answer the following question given this paragraph: Nucleic acids are biochemical molecules that contain oxygen, nitrogen, and phosphorus in addition to carbon and hydrogen. There are two main types of nucleic acids. They are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Q: Along with dna, what is the other main type of nucleic acid? Choices: - nucleotides - protein - cytoplasm - rna A:

Ans:rna
Answer the following question given this paragraph: During adulthood, testosterone is needed for the production of sperm. Q: During adulthood, what is needed for the production of sperm? Choices: - steroids - estrogen - androgen - testosterone A:
testosterone