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Concept explainers
To determine: The significance in the arrangement of the given sequence (Leu-Lys-Val-Asp-Ile-Ser-Leu-Arg-Leu-Lys-Ile-Arg-Phe-Glu) when incorporated in beta sheets.
Introduction: Beta sheets are the secondary structure of proteins. There are two types of beta sheets: the parallel and anti-parallel. When two strands of the beta sheets run in similar direction, it is termed as parallel beta strands, whereas when the both strands run in reverse direction, it is termed as anti-parallel beta sheets. In the anti-parallel sheets, amino terminal of one amino acid forms bond with the carboxyl terminal of the nearby strand, and carboxyl terminal of the same amino acid forms bond with the amino terminal of the other nearby strand. Whereas in the parallel sheet, the amino terminal of amino acid in one strand forms a bond with the amino terminal of the nearby strand and the carboxyl end forms hydrogen with the carboxyl end of the nearby strand.
To predict: The arrangement of beta sheets in a protein.
Introduction: Beta sheets are the secondary structure of proteins. There are two types of beta sheets; the parallel and anti-parallel.
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Chapter 4 Solutions
Essential Cell Biology 5e
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
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