The suffix –ine is used for amino acids, and the suffix –yl is used for the protein’s structure. Carbon needs to create bonds; in any way it can, with other atoms. It can share its electrons with up to 4 other atoms at once, which lets carbon build complex chains. Carbon is very similar with silicon, the element right under it. Silicon has the capability to imitate carbon, and constantly bonds with oxygen.
A value of A(1% 1cm) was obtained. INTRODUCTION Cytochromes are proteins with an iron-containing group (heme) capable of existing alternatively in a reduced form (Fe2+) and an oxidised form (Fe3+) form and are specifically involved in electron transport in mitochondria. (Tortora & Grabwoski, 2000). Several cytochromes are involved in the electron transport chain and includes cytochrome a (cyt a), cytochrome a3 (cyt a3) cytochrome b (cyt b), cytochrome c1 (cyt c1) and cytochrome c,(cyt c). The electron carrier cytochrome c resides in the intermembrane space between the outer and inner mitochondrial membranes and helps the electron transport chain to convert energy as NADH to energy as the hydrogen ion electrochemical gradient across the mitochondrial inner membrane.
12: Hydrolysis reactions ARE EXOTHERMIC 13: If a molecule is described as "organic," this means it CONTAINS CARBON AND HYDROGEN 14: Glucose is a sugar with six carbons. This makes it a HEXOSE Hexoses (sugars with six carbons), such as glucose, play a vital role in the metabolism of all cells. 15: A proton is an atomic particle with a POSTIVE CHARGE 16: Pasteur made major contributions to the study of which of the following? FERMENTATION 17: Which of the following is NOT associated with the structure of fats? PEPTIDE BONDS 18: Members of which of the following groups are
BIOL-110 Elements of Biology Assignment 1 Student Name: Part A: Multiple Choice Questions and Fill in the Blanks 1) A covalent chemical bond is one in which * c) Outer-shell electrons of two atoms are shared 2) Which of the following is not a weak molecular interaction? * a) A covalent bond 3) Polysaccharides, lipids, and proteins are similar in that they * b) Are synthesized from monomers by dehydration reactions. 4) Which of the following is a compartment that often takes up much of the volume of a plant cell? * b) Vacuole 5) The presence of cholesterol in the plasma membranes of some animals * a) Enables the membrane to stay fluid more easily when cell temperature drops 6) Which of the following types of molecules are the major structural
of Glycine is 75g/mol)? 1% of Glycine = 1g/100mL 1g x (1 mol/75g) = 0.0133mol M = mol/L 0.0133mol/0.1L = 0.133M 12) Identify the amino acid in the chemical structure below, as well as the “R” group, and describe the polarity and charge characteristics. 1. Glutamic acid; carboxylic group side chain; polar negatively charged 2. Histidine; imidazole group side chain; polar positively charged 3.
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Living creatures produce thousands of enzymes, and the reason for this is because; ‘most enzymes only catalyze one biochemical reaction’ (1), and many different enzymes are need to do this. Enzyme-substrate specificity, this is when ‘a typical enzyme only works on the substrates used in one reaction’ (1). This involves the substrate(s) that bind to the active site. Both active site’s and the substrate’s shape are a match. The reason for this is because; this allows the substrate to bind to the active site, which is known as the ‘lock and key model’.
Since carbon atoms are able to create double and triple bonds with other atoms, it further also raises the likelihood for variation in the molecular make-up of organic compounds. All hydrocarbons are insoluble in water because of their relatively non-polarity and easily distribute. When hydrocarbons burn using oxygen, C02and H20 are the sole products. There are 2 large classes of Hydrocarbon namely: Unsaturated and Saturated hydrocarbons. Saturated Hydrocarbons are the simplest type of organic compounds in which all carbon-carbon bonds are single bonds.