Answer the following question given this paragraph: The tRNA structure is a very important aspect in its role. Though the molecule folds into a 3-leaf clover structure, notice the anticodon arm in the lower segment of the molecule, with the amino acid attached at the opposite end of the molecule (acceptor stem). It is the anticodon that determines which codon in the mRNA the tRNA will bind to. Q: What determines which codon in the mrna the trna will bind to? Choices: - gene - amnion - exon - anticodon A:
anticodon
(Question)
Answer the following question given this paragraph: Hydropower utilizes the energy of falling water. Q: Hydropower is generated with what natural resource? Choices: - light - air - fire - water A:
(Answer)
water
Ques: Answer the following question given this paragraph: Liquefaction of Gases Liquefaction of gases is the condensation of gases into a liquid form, which is neither anticipated nor explained by the kinetic molecular theory of gases. Both the theory and the ideal gas law predict that gases compressed to very high pressures and cooled to very low temperatures should still behave like gases, albeit cold, dense ones. As gases are compressed and cooled, however, they invariably condense to form liquids, although very low temperatures are needed to liquefy light elements such as helium (for He, 4.2 K at 1 atm pressure). Liquefaction can be viewed as an extreme deviation from ideal gas behavior. It occurs when the molecules of a gas are cooled to the point where they no longer possess sufficient kinetic energy to overcome intermolecular attractive forces. The precise combination of temperature and pressure needed to liquefy a gas depends strongly on its molar mass and structure, with heavier and more complex molecules usually liquefying at higher temperatures. In general, substances with large van der Waals acoefficients are relatively easy to liquefy because large a coefficients indicate relatively strong intermolecular attractive interactions. Conversely, small molecules with only light elements have small a coefficients, indicating weak intermolecular interactions, and they are relatively difficult to liquefy. Gas liquefaction is used on a massive scale to separate O2, N2, Ar, Ne, Kr, and Xe. After a sample of air is liquefied, the mixture is. Q: Liquefaction ccurs when the molecules of a gas are cooled to the point where they no longer possess sufficient kinetic energy to overcome what? Choices: - intermolecular gravitational forces - gravitational attractive forces - bonding attractive forces - intermolecular attractive forces A:
Ans: intermolecular attractive forces
(Q).
Answer the following question given this paragraph: One type of molecular compound behaves quite differently than that described so far. A covalent network solid is a compound in which all of the atoms are connected to one another by covalent bonds. Diamond is composed entirely of carbon atoms, each bonded to four other carbon atoms in a tetrahedral geometry. Melting a covalent network solid is not accomplished by overcoming the relatively weak intermolecular forces. Rather, all of the covalent bonds must be broken, a process that requires extremely high temperatures. Diamond, in fact, does not melt at all. Instead, it vaporizes to a gas at temperatures above 3500C. Q: What is a compound in which all of the atoms are connected to one another by covalent bonds? Choices: - covalent bond element - covalent mixture - compound metal - covalent network solid A:
(A).
covalent network solid
Ques:Answer the following question given this paragraph: Communications satellites carry solar panels to provide energy for their missions. Q: What do communication satellites carry and use to provide energy during their missions? Choices: - geothermal panels - batteries - infrared panels - solar panels A:

Ans:solar panels
Ques:Answer the following question given this paragraph: Brass alloys have long been employed in musical instruments. Q: What type of alloys are used in musical instruments? Choices: - plastics - bronze - copper - brass A:

Ans:
brass