The importance of a proteins shape and structure determine the protein function.
The Primary structure of proteins is the linear ordering of amino acids, bound by Covalent,peptide bonds to form primary structure.
Secondary structure refers to local folded structures formed due to hydrogen bonding between the amine and carboxyl group of the peptide link of polypeptide chain.
These structure present in two forms like α – helix form which is a polypeptide chain forms hydrogen bonds by twisting into a right-handed screw with the -NH group of each amino acid residue.
The β – pleated sheet structures are the peptide chains are stretched out ,laid side by side together by intermolecular hydrogen bonds. The structure resembles the pleated folds of drapery.
Tertiary Structure of Protein refers to folding of the secondary structure by H-bonds, electrostatic forces, disulphide linkages, and Vander Waals forces stabilize this structure. Quaternary Structure of Protein refers to spatial arrangement of various tertiary structures.
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Answer:
Proteins catalyze chemical reactions by bringing them together in the right orientation and helping them react together. If they have the wrong shape they cannot do this. This is because with the wrong shape, the pieces will not fit together properly
Explanation: A
b. False
This statement is true.
Chitin is a polysaccharide made up of N - acetylglucosamine .
Fungi cell walls are made of chitin. Chitin is also the major ingredient of the exoskeletons of crustaceans and arthropods. Spiders, beetles, butterflies, lobsters, shrimps and crabs all have chitin in their protective armor.
when intermixed with protein and other pigments, it forms different levels of hardness and a variety of distinct colors. Alone, chitin appears translucent and not hard. In arthropods, it is secreted by epidermal cells.
b. cellular, tissue, organ, system, and organism
c. cellular, tissue, system, and organism
d. cellular, tissue, organ, and system
The process of converting the genetic message from DNA into RNA is called transcription.
Transcription is the phase of gene expression in which a certain part of DNA is copied into RNA. Transcription is carried out by the enzyme RNA polymerase which joins nucleotides to produce an RNA strand and uses a DNA strand as a template. The three stages involved in transcription are initiation, elongation, and termination.
b) has specific active genes in response to environment
c) transcribes bacterial and human DNA
d) transcribes certain genes at certain times
***please provide explanation if possible
Answer:
Like:-Have cell wall
Unlike:- Fungi are heterotrophs
Explanation:
Fungi cell wall composed of chitin rather than cellulose. Like plant fungi often grow in the soil . Like plant fungi cannot produce own food.
Like plants, fungi often grow in soil. Unlike plants, Fungi cannot produce their own food. Instead they absorb nutrients from their surroundings.
Enzymes are described as catalysts, which means that they accelerate or speed up chemical reactions without being consumed or permanently altered in the process.
Enzymes facilitate the conversion of reactants into products by lowering the activation energy required for the reaction to occur.
This allows the reactions to happen more efficiently and at a faster rate. Enzymes are essential for many biological processes and are often referred to as biological catalysts.
Thus, enzymes are described as catalysts, which means that they accelerate or speed up chemical reactions without being consumed or permanently altered in the process.
So enzymes increases the rate of chemical reactions.
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