the chromosomes of organisms other than bacteria (i.e.‚ eukaryotes) are composed. It consists of protein‚ RNA‚ and DNA. Chromosome → a threadlike structure of nucleic acids and protein found in the nucleus of most living cells‚ carrying genetic information in the form of genes. Cristae → The infoldings or inward projections of the inner membrane of the mitochondrion‚ which are studded with proteins and increase the surface area for chemical reactions to occur like cellular respiration. Cytoplasm
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Analysis: Lab 1 Identifying Carbohydrates There were many ranges of color changes in the Benedicts test and Iodine stain. For the Benedicts test‚ this oxidation/reduction response changes the arrangement of the reducing sugar creating a colored precipitate. The change in color is correlated to the first concentration of the reducing sugar. For the iodine test‚ the three dimensional structure of various polysaccharides permits them to react with the iodine stain to produce a certain color. As far
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3.1 Proteins Table 3.2 Biuret Test Tube Contents Final Color Conclusions 1 Distilled water Transparent‚ light blue‚ navy Possibly little protein with clear peptide or no protein at all 2 Albumin Dark Purple Proteins are present with purple peptides 3 Pepsin Purplish blue‚ darkish blue Proteins are present with purple or black colored peptides 4 Starch Light blue‚ really clear Possible little protein with clear peptide or no protein at all Our results are correct because water
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we have to take every day‚ therefore we would like to identify the types of macromolecules that contain in some of the food or solution in order to maintain a healthy life. There are four groups of macromolecules which are carbohydrates‚ lipids‚ proteins and nucleic acid. They are mostly made up of hydrogen‚ carbon‚ oxygen‚ nitrogen‚ sulphur and phosphorus. 1. Carbohydrates Carbohydrates are organic compounds that with the combination of carbon‚ hydrogen and oxygen in a 1:2:1 ratio. Carbohydrates
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synthesis of proteins. [1] They are very large molecules built from subunits called nucleotides. All nucleotides have a common structure: a phosphate group linked by a phosphodiester bond to a pentose (a five-carbon sugar molecule) that in turn is linked to an organic base. [2] Figure 1. General structure of a nucleotide One type of nucleic acid is the ribonucleic acid (RNA). The RNA is single-stranded used for the coding of the primary sequence of amino acids to make proteins‚ and is found
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Plasma Membrane: This organelle’s main function is to protect the cell from its surroundings‚ the membrane also regulates the movement of substances that go in and out of the cell. This is composed of phospholipid bilayer with embedded proteins. Cell Wall: The cell wall is composed of cellulose‚ this sugar is used as structure and protection. This organelle is only found in plants. The cell wall has three layers the middle lamella‚ primary cell wall‚ and secondary cell wall. The middle lamella contains
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through the plasma membrane because of pressure or concentration differences between the interior and exterior of the cell. Facilitated diffusion relies on carrier proteins‚ and occurs when molecules are either not lipid soluble or are too large to pass through the pores of the membrane. Solutes have to combine with the carrier proteins in the membrane‚ and then they can be transported down the concentration gradient. Filtration is the movement of solute and water molecules across a membrane due
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The objective of this macromolecules lab was to identify the presence any of the major macromolecules in various every day food items. The three macromolecules that this lab was carried out for were carbohydrates‚ lipids‚ and proteins. There were five different experiments conducted and each of those experiments had one factor in common‚ they all had the same controls. The controls in this lab activity were already set for the lab activity. The controls were the distilled water and the baking soda
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What is a gene?‚ 2015)Genes lie in long strands of deoxyribonucleic acid (DNA) called chromosomes. DNA containing genes form structures call chromosomes. Humans have 23 pairs of chromosomes. Chromosomes are made up of a single molecule of DNA and proteins. (Medicine‚ 2015) DNA is a double-stranded molecule compose with sugar‚ phosphate and four nitrogen bases called nucleotides. They are A (Adenine)‚ C (Cytosine)‚ G (Guanine) and T (Thymine). These bases
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Actin‚ a globular protein with a molecular weight of 42-kDa‚ is the most abundant intracellular protein in most eukaryotes (3). It plays important roles in many essential cell biological processes. Actin exists as a monomer called G-actin and as a filament called F-actin‚ a linear chain of G-actin subunits (2). Two F-actin filaments intertwine to form a microfilament‚ one of the three major components of cytoskeleton (2). Microfilament is important for generating cell movement. One mechanism involves
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