According to the first law of thermodynamics, ____
a. the energy of a system always increases
b. the amount of energy in the universe is changeable
c. chemical reactions do not create or destroy energy
d. energy is always stable
e. energy always decreases
ANSWER: c
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In some plants, companion cells become modified into phloem cells that facilitate the short-distance transport of
various organic solutes from the symplast into the apoplast.
a. True b. False
Which of the following statements is most true regarding X-inactivation?
A) When a cell divides, the inactive X-chromosome remains inactive in the newly formed cell. B) X-chromosomes that remain active are called Barr bodies. C) X-inactivation is more common in males than females. D) X-inactivation results in repressing the expression of approximately 75% of the genes on the X-chromosome. E) X-inactivation is caused primarily by the expression of several small noncoding RNAs (sncRNA).
Genetic distance refers to the proportion of dissimilar nucleotides between two homologous sequences
Indicate whether the statement is true or false
Glycogen Storage Disease Type II (GSD II), also known as Pompe disease, is a metabolic disorder that leads to the accumulation of glycogen in muscles and neurons throughout the body. It is caused by a defect in an enzyme that is normally housed with other enzymes that are involved in breaking down large macromolecules. What organelle is most likely affected by this disease?
A. Lysosome B. Golgi body C. Nucleus D. Mitochondrion E. Rough ER Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about breaking down large macromolecules like glycogen? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?