Our growing understanding of how proteins fold allows researchers to make predictions about protein structure based on primary amino acid sequence data. consider the following amino acid sequence. i - a - h - t- y- g - p - f- g - a - a- m - c - k - w - e - a- q - p - d – g – m - e - c- a - f - h - r1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28(a) where might bends or b turns occur? why? draw the provided amino acid sequence in the bent form (use the single letter abbreviation; don’t have to draw the structure of each amino ) draw the full structure amino acid(s) that cause bends and use your drawing to explain why bends occur.(c) where might intrachain disulfide cross-linkages be formed? indicate in your drawing the location of the disulfide cross-linkages.(d) assuming that this sequence is part of a larger globular protein, indicate the probable location(the external surface or interior of the protein) of the following amino acid residues: asp, ile, thr, ala, gln, lys. explain your reasoning.(e) look at your drawing and predict what would be different if amino acid 13 is changed to f. would this change affect the stability of the protein? explain your reasoning.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.

c. is the correct answer

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.