Results for "Past Questions"

BAF 451 Past Questions and Answers

BAF_FIN 101 _ BUA 105

Title: BAF/FIN 101 / BUA 105 URL: https://studentsdash.com/baf-fin-101-bua-105/ -------------------------------------------------- BAF 101 | FIN 101 | BUA 105

BCH 102 Past Questions and Answers

BCH 102 Past Questions and Answers (2024 SESSION)

BCH 102 Past Questions and Answers 2025

BCH 201 Past Questions and Answers

Title: BCH 201 Past Questions and Answers URL: https://studentsdash.com/bch-201-past-questions-and-answers-3/ -------------------------------------------------- Answer to Q1 (a) Description of a Polypeptide Chain A polypeptide chain is formed when many amino acids join together by peptide bonds. Each amino acid has two main groups: • An amino group (–NH₂) • A carboxyl group (–COOH) When one amino acid’s carboxyl group bonds to the next amino acid’s amino group, a water molecule (H₂O) is released. This reaction is called a condensation reaction, and the bond formed is a peptide bond (–CONH–). Repeating this process creates a long chain of amino acids, called a polypeptide. In shorthand, we often show the structure like this: … –NH–CH(R)–CO–NH–CH(R)–CO– … where R stands for the side chain that makes each amino acid unique. The chain has two ends: the N-terminus (free –NH₃⁺ group) and the C-terminus (free –COO⁻ group). (b) What are Fibrous Proteins? Fibrous proteins are long, thread-like or rope-like proteins that often have a structural role in the body. They usually: • Are insoluble in water • Have strong, stable structures • Provide support and strength to cells or tissues Common examples include collagen (found in skin and connective tissues), keratin (in hair and nails), and silk fibroin (in spider silk and silkworm silk). (c) What is Protein Denaturation? Protein denaturation is when a protein loses its normal 3D shape (its native conformation) because of changes in the environment. This can happen due to: • High temperature (heat) • Extreme pH (very acidic or very alkaline conditions) • Chemicals (like alcohols, detergents) • Heavy metals (like mercury, lead) Even though the protein’s shape changes and it often loses its function, the primary structure (the sequence of amino acids) usually remains the same. Denatured proteins can sometimes refold if the conditions return to normal, but often the denaturation is permanent, leading to a loss of biological activity. 2 FULL SOLUTION LOADING 98%….

BCH 201 Past Questions and Answers 2023_2024

BCH 201 Past Questions and Answers 2025

BCH 202 past Question and Answers

BCH 203_ BCH 291 Past Questions and Answers

BCH 205 Past Question and Answer

BCH 213 Past Questions and Answers