Ques:Q: Biological macromolecules are organic, which means that they must contain what? Read this paragraph and choose the correct option from the provided answers: 2.3 | Biological Molecules By the end of this section, you will be able to: Describe the ways in which carbon is critical to life Explain the impact of slight changes in amino acids on organisms Describe the four major types of biological molecules Understand the functions of the four major types of molecules The large molecules necessary for life that are built from smaller organic molecules are called biological macromolecules. There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass. Biological macromolecules are organic, meaning that they contain carbon. In addition, they may contain hydrogen, oxygen, nitrogen, phosphorus, sulfur, and additional minor elements. Choices: - hydrogen - aluminum - oxygen - carbon A:

Ans:carbon
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Ques:Q: What effect does tamiflu have on viruses and cells? Read this paragraph and choose the correct option from the provided answers: an enzyme (viral neuraminidase) that allows new virions to leave their infected cells. Thus, Tamiflu inhibits the spread of virus from infected to uninfected cells. Other antiviral drugs, such as Ribavirin, have been used to treat a variety of viral infections, although its mechanism of action against certain viruses remains unclear. Choices: - destroys all viruses - reprograms viruses - enhances cells - inhibits spread of virus A:

Ans:inhibits spread of virus
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Ques:Q: What do you call the two ends of a magnet where the magnetic effect is strongest? Read this paragraph and choose the correct option from the provided answers: Any magnet has two ends called poles where the magnetic effect is strongest. Choices: - plates - magnetos - opposites - poles A:

Ans:poles
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Ques:Q: Because the fields that make up an electromagnetic wave are at right angles to each other and to the direction that the wave travels, an electromagnetic wave is considered what? Read this paragraph and choose the correct option from the provided answers: As you can see in Figure above , the electric and magnetic fields that make up an electromagnetic wave occur are at right angles to each other. Both fields are also at right angles to the direction that the wave travels. Therefore, an electromagnetic wave is a transverse wave. Choices: - insverse wave - transverse wave - stimulation wave - transverse wave A:

Ans:
transverse wave
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