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Which of the following is/are (an) example(s) of structural protein? [1]
Which of the following is/are (an) example(s) of structural protein?. Myosin, collagen and keratin are all examples of structural proteins
Protein [2]
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– Proteins are made up of chemical ‘building blocks’ called amino acids.. – Your body uses amino acids to build and repair muscles and bones and to make hormones and enzymes
– Most Australians get more than enough protein from foods alone.. Protein is a nutrient your body needs to grow and repair cells, and to work properly.
How much protein you need from your diet varies depending on your weight, gender, age and health.. Meeting your protein needs is easily achieved from eating a variety of foods
Classifications & Functions with Examples and Videos [3]
Proteins are very large molecules composed of basic units called amino acids. Proteins contain carbon, hydrogen, oxygen, nitrogen, and sulphur.
Proteins are highly complex molecules that are actively involved in the most basic and important aspects of life. These include metabolism, movement, defense, cellular communication, and molecular recognition.
Folded proteins may combine with other folded proteins to form even larger more complicated shapes.. The folded shape of a protein molecule determines its role in body chemistry
Proteins [4]
Proteins are biopolymeric structures composed of amino acids, of which there are 20 common ones found in biological chemistry[1], participating in nearly all cellular activities.. – Proteins are synthesised in the cytoplasm in a process termed translation.
Every protein is specially equipped for its function.. – Any protein in the human body can be created from permutations of only 20 amino acids.
Muscles contain about 30 percent protein, the liver 20 to 30 percent, and red blood cells 30 percent. Higher percentages of protein are found in hair, bones, and other organs and tissues with a low water content[3].
One of the following is an example of storage protein.A. CollagenB. KeratinC. GliadinD. Haemoglobin [5]
One of the following is an example of storage protein.. Hint: Living organisms have reserves in their bodies which are used to reserve or store metal ions and amino acids
These proteins are important because they help in plant development and plant survival.. The meaning of each option needs to be considered in order to answer the question.
It provides strength and structure to the body as it holds everything together. Fish, chicken and citrus fruits are the best sources of collagen
SOLVED: which of the following is an example of a protein [6]
Get 5 free video unlocks on our app with code GOMOBILE. which of the following are examples of proteins select all that apply
“which of these illustrates the secondary structure of a protein?”. Give an example of a protein containing primarily alphahelices
Which of the following examples are the ones that apply? The option four is correct
Biology Online Dictionary [7]
In biology, a protein is a biomolecule comprised of amino acid residues joined together by peptide bonds.. Proteins are biomolecules comprised of amino acid residues joined together by peptide bonds
The others are carbohydrates (especially, polysaccharides), lipids, and nucleic acids. The components of proteins include carbon, hydrogen, oxygen, sulfur, nitrogen, and sometimes phosphorus
The amino acids in a protein are determined by the nucleotide sequence of the gene coding for them. The amino acid sequence often determines how the protein folds into a particular 3D configuration
Learn Science at Scitable [8]
This page has been archived and is no longer updated. Proteins are the end products of the decoding process that starts with the information in cellular DNA
This incredible array of functions derives from a startlingly simple code that specifies a hugely diverse set of structures.. In fact, each gene in cellular DNA contains the code for a unique protein structure
The folded shape, or conformation, depends directly on the linear amino acid sequence of the protein.. The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain (see below)
Protein [9]
– Proteins are made up of chemical ‘building blocks’ called amino acids.. – Your body uses amino acids to build and repair muscles and bones and to make hormones and enzymes
– Most Australians get more than enough protein from foods alone.. Protein is a nutrient your body needs to grow and repair cells, and to work properly.
How much protein you need from your diet varies depending on your weight, gender, age and health.. Meeting your protein needs is easily achieved from eating a variety of foods
The Shape and Structure of Proteins [10]
By agreement with the publisher, this book is accessible by the search feature, but cannot be browsed.. A service of the National Library of Medicine, National Institutes of Health.
This is perhaps not surprising, once one realizes that the structure and chemistry of each protein has been developed and fine-tuned over billions of years of evolutionary history. We start this chapter by considering how the location of each amino acid in the long string of amino acids that forms a protein determines its three-dimensional shape
The Shape of a Protein Is Specified by Its Amino Acid Sequence. Recall from Chapter 2 that there are 20 types of amino acids in proteins, each with different chemical properties
Define the following with an example of each : (a) Polysaccharides (b) Denatured protein (c) Essential amino acids OR (a) Write the product when D-glucose reacts with conc. HNO 3 . D-glucose + HNO 3 → [11]
(a) Write the product when D-glucose reacts with conc. (a) Polysaccharides : These are the saccharides containing large number monosaccharides units joined together by glycosidic linkage they yield a large number of monosaccharides upon hydrolysis
Since denaturation reactions are not strong enough to break the peptide bonds, the primary structure (sequence of amino acids) remains the same after a denaturation process, eg:- The coagulation of egg white on boiling.. (c) Essential amino acids : The amino acids which cannot be synthesized inside the body and must be obtained from diet taken by us are known as essential amino acids.eg:- Histidine, Valine etc.
COOH and NH2 in the same molecule can lose a proton and amino group can accept a proton, giving rise to dipolar ion.. (a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers.
Wikipedia [12]
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another
A linear chain of amino acid residues is called a polypeptide. Short polypeptides, containing less than 20–30 residues, are rarely considered to be proteins and are commonly called peptides
The sequence of amino acid residues in a protein is defined by the sequence of a gene, which is encoded in the genetic code. In general, the genetic code specifies 20 standard amino acids; but in certain organisms the genetic code can include selenocysteine and—in certain archaea—pyrrolysine
Proteins [13]
The conformational flexibility of peptide chains is limited chiefly to rotations about the bonds leading to the alpha-carbon atoms. This restriction is due to the rigid nature of the amide (peptide) bond
This keeps the peptide links relatively planar and resistant to conformational change. The color shaded rectangles in the lower structure define these regions, and identify the relatively facile rotations that may take place where the corners meet (i.e
Because the N-terminus of a peptide chain is distinct from the C-terminus, a small peptide composed of different aminoacids may have a several constitutional isomers.. For example, a dipeptide made from two different amino acids may have two different structures
Overview of Post-Translational Modification [14]
Within the last few decades, scientists have discovered that the human proteome is vastly more complex than the human genome. While it is estimated that the human genome comprises between 20,000 and 25,000 genes, the total number of proteins in the human proteome is estimated at over 1 million
Genomic recombination, transcription initiation at alternative promoters, differential transcription termination, and alternative splicing of the transcript are mechanisms that generate different mRNA transcripts from a single gene.. The increase in complexity from the level of the genome to the proteome is further facilitated by protein post-translational modifications (PTMs)
Post-translational modifications are key mechanisms to increase proteomic diversity. While the genome comprises 20,000 to 25,000 genes, the proteome is estimated to encompass over 1 million proteins
Chapter 8: The Major Macromolecules [15]
Within all lifeforms on Earth, from the tiniest bacterium to the giant sperm whale, there are four major classes of organic macromolecules that are always found and are essential to life. These are the carbohydrates, lipids (or fats), proteins, and nucleic acids
In Chapter 6, you were introduced to the polymers of life and their building block structures, as shown below in Figure 11.1. Recall that the monomer units for building the nucleic acids, DNA and RNA, are the nucleotide bases, whereas the monomers for proteins are amino acids, for carbohydrates are sugar residues, and for lipids are fatty acids or acetyl groups.
You will find that the major macromolecules are held together by the same chemical linkages that you’ve been exploring in Chapters 9 and 10, and rely heavily on dehydration synthesis for their formation, and hydrolysis for their breakdown.. Figure 11.1: The Molecular building blocks of life are made from organic compounds.
Sources
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- https://www.betterhealth.vic.gov.au/health/healthyliving/protein#:~:text=poultry%20%E2%80%93%20chicken%2C%20turkey%2C%20duck,%2C%20cheese%20(especially%20cottage%20cheese)
- https://byjus.com/chemistry/protein-definition/#:~:text=They%20serve%20a%20wide%20range,collagen%2C%20insulin%2C%20and%20anticorps.
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