Amylose, cellulose, and glycogen are all polysaccharides composed of glucose. What makes each of these polysaccharides unique in spite of the fact that all are composed solely of glucose?
What will be an ideal response?
Answer: Amylose: is produced by plants and is a nutritional form; linear structure with glucose molecules connected by α(1→4) linkages.
Cellulose: is produced by plants and is a structural form; linear structure with glucose molecules connected by β(1→4) linkages; mammals do not have the enzyme needed to break this type of linkage.
Glycogen: is produced by animals and is a nutritional form; branched form with α(1→4) linkages with α(1→6) linkages at the branch points.
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Squid (shown below, from Fig. 35.3) are predatory molluscs. This requires that squid be able to sense and detect prey that are both sedentary and highly mobile. Which of the following would you expect to be properties of this animal's nervous system?
A. cephalization B. nerve net C. sense organs D. bilateral symmetry E. More than one of the answer choices are correct.
What basic information does a demographer need to know to predict a species population size through
time?
What will be an ideal response?Explain the basic mechanism CRISPR in DNA manipulation
What will be an ideal response?
If the half-life of carbon-14 is about 5730 years, then a fossil that has one-sixteenth the normal proportion of carbon-14 to carbon-12 should be about how many years old?
A) 2800 B) 11,200 C) 16,800 D) 22,900