From what you\'ve learned about chemical reactions and bond organic molecules wo
ID: 96184 • Letter: F
Question
From what you've learned about chemical reactions and bond organic molecules would store _______ energy in their _______ bonds A. Potential: ionic B. Potential: covalent C. Kinetic: ionic D. Kinetic: covalent E. Kinetic: hydrogen Generally, water makes up approximately _______ of the volume inside a cell A. 70% B. 50% C.10% D.90% A process that occurs across a cell membrane passively would be expected to: A. Use energy B. Not use energy C. Move against its concentration gradient D. Mix evenly with whatever solution it is placed in A purpose of the plasma membrane is to: A. Produce proteins B. Allow no contact with other cells C. Keep harmful substances within the cell D. Form ribosomes E. For the outer boundary of the cell Entropy is the measure of _______ in a system A. Energy B. Disorder C. Work D. Order E. Heat Knowing what you do about the two laws of thermodynamics that we discussed: Living things are highly ordered, so, why does life not violate the second law of thermodynamics? A. Life can only violate the first law of thermodynamics B. Life only needs to follow the first law of thermodynamics C. Life takes energy to maintain order, and, in doing so, decreases order elsewhere D. Life gives off energy to maintain order, and, in doing do, decreases order elsewhere Which of the following is an accurate description of the plasma membrane? A. It is a phospholipid embedded with proteins B. It separates the nuclear contents from the environment C. It is permeable to all substances D. It is a solid materialExplanation / Answer
7. B. Potential, covalent (as energy stored in chemical bonds is potential energy, and organic compounds have covalent bonds due to the majority of interactions involving carbon, hydrogen and oxygen)
8. A. 70%
9. B. Not use energy
10. E. It forms the outer boundary of the cell
11. B. Disorder (entropy is higher in a hot body as vibration od individual molecules increase the degree of randomness)
12. D. Living systems are considered as open system, and influence the entropy of objects associated with them (such as clothing in humans) and thus follow the second law of thermodynamics.
13. A. It is composed of phospholipids and protein. It is selectively permeable, more liquid than solid and separated cytoplasmic contents from the environment (nuclear membrane separates nuclear contents)
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