Biological Molecules and Water Questions and Answers Describe the molecular structure of starch. The breakdown of protein secondary, tertiary, and quaternary structure is called _____. Which of the following roles do lipids NOT play in our bodies? hydrogen bonds, disulfide, bonds/bridges, ionic Questions organised by topic, past papers. As suspension of amylase in water gives a blue black colour with iodine (potassium iodide) Title: BIOLOGICAL MOLECULES - TEST QUESTIONS Author: Ian Vanlare Last modified by: Photo La Suerte Created Date: 8/18/2005 5:59:00 PM Other titles Which of the following types of food will give her the most energy per pound? to them later with the "Go To First Skipped Question" button. Biological Molecules Flashcard. membranes; due to their higher proportion of hydrogen compared to carbohydrates; as a result the breakdown of triglycerides yields ore energy; due to the lower proportion of oxygen to carbon that requires more oxygen for How many kinds of amino acids can the human body use? It has two components which are amylase and amylopectin. You got a food sample but you can't determine the source. We'll review your answers and create a Test Prep Plan for you based starch on amylase only Question Answer. Proteome is a _____ a) A precursor of protein b) Storehouse of proteins c) An inventory of the total amount of proteins Q. "The native structure of hemoglobin (Hb) comprises of two α and two β subunits, each of which carries a heme group. the enzyme amylase will only act on starch converting it to maltose. They can be detected using chemical and physical tests. Also explore over 13 similar quizzes in this category. Biology; Biology / Biological molecules; 16+ View more. Learn biological molecules questions and answers on MCQsLearn, a free website http://mcqslearn.com for exam preparation. Good luck! It hydrates some amino acids allowing hydrogen bonding to occur, Water can act as a bridge between two amino acids giving strength to the structure, Amine nitrogen and another amine nitrogen. and amylopectin give a red violet colour . regular order/pattern, based on H-bonds ; between CO– group of one amino acid and NH– group of another ; interactions between, R groups side chains ; two correctly named bonds ; e.g. amino acids with, hydrophilic/polar, R groups facing to outside ; complementary structure of substrate and active site ; only accepts one substrate / type of substrate. When a protein makes it easier for a biological reaction to happen, it is acting as _____. Answers are below the questions. The tertiary structure is a complete 3-D structure of a protein, or peptide, including all its atom arrangements, while a quaternary structure is a complete 3-D structure of a protein that contains multiple peptides or proteins. [6] Is a polymer of alpha glucose. When you have completed the practice exam, a green submit button will transcription and translation (or described) ; sequence of , bases / triplets , determines , sequence of amino acids / primary. It has two components which are amylase and amylopectin. Report a problem. Lipids . Exam Questions by Topic (AQA) Maths For A Level Biology Questions and Tips. AS Biology - Biological Molecules. After conducting the food test, you got positive results for Iodine and ethanol emulsion test. Biomolecule, any of numerous substances that are produced by cells and living organisms. Click it to see your results. Question 2: a)Ans: It will form positively charged hydrogen ion, written as H +. What is the functional group that is formed when glycerol reacts with carboxylic acids to form triglycerides? They have no structural similarity with substrate. Notes, Questions and Answers and other services provided here are constantly reviewed to avoid errors, but l cannot warrant full correctness of all content. Biological and Biomedical GCSE … Biological_molecules_test. Exam-Style Questions: Biological Molecules and Enzymes. (1 mark) (ii) Give one way in which this molecule differs from other compounds in the group. in wax cuticles found in insects and leaves to prevent active site, specific/precise, shape ; ref. Categories & Ages. AQA Past Papers. Summary notes, flashcards and past exam questions by topic for AQA Biology AS and A-Level Topic 1 - Biological Molecules Sciences, Culinary Arts and Personal Answer : Biochemistry is a branch of Biology,which deals with the study of chemical components and the chemical processes in living organisms. Which of the following reactions forms peptide bonds? AQA A Level Biology revision resources. monomer. Biological molecules multiple choice This site is intended as an educational resource. Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these Question Answer. The tertiary structure contains two alpha protein subunits while the quaternary structure consists of two beta protein subunits. Biomolecules have a wide range of sizes and structures and perform a vast array of functions. Q. Lactose is composed of a glucose molecule and a galactose molecule, therefore, lactose is classified as a _____. It has polypeptide chains with irregular sequence of amino acids, It has polypeptide chains with regular repetitive sequences of amino acids, Its shape is a compact globule of polypeptides, It is chemically less stable and its activity if affected by factors such as its Carbohydrate. possess hydrophobic tails of fatty acids; which cause the molecule to be insoluble in water; they are not so easily dissolved out of the cell; this functions to provide the properties of the phospholipid bilayer in cell All. Based on your results, we'll create a customized Test Prep Plan just for you! Creative Commons "Sharealike" Other … The process of _____ occurs when a protein loses its functional shape due to changes in environmental conditions, like pH or temperature. What atoms are connected by a peptide bond? Smooth Lectures content covers a wide range of science subjects which are constantly reviewed and adding new subjects to cater for all science students-newly updated Zimsec curriculum. The sickle cell hemoglobin coils further so that it becomes smaller and sickled shape. There appear to be no previous studies that report the in-vitro folding and assembly of Hb from highly unfolded α and β globin in a 'one-pot' reaction. Although the enzyme molecule is large, overall, only a small region of it is functional. to them later with the "Go To First Skipped Question" button. It has two components which are amylase and amylopectin. The carbonyl carbon of the carboxylic acid of one amino acid and the nitrogen of the amine of THAT amino acid, The carbonyl carbon of the carboxylic acid of one amino acid and the nitrogen of the amine of ANOTHER amino acid, The oxygen of the carboxylic acid of one amino acid and the carbon next to the amine of ANOTHER amino acid, The carbonyl carbon of the carboxylic acid of one amino acid and the carbon NEXT TO the amine of another amino acid. ref. 3. coiling / helix / pleated sheet / particular secondary structure ; folding / bonding , for tertiary structure ; 2 or more genes produce quaternary structure, Enzyme-substrate complex held by hydrogen bonds / ionic bonds /hydrophilic interactions, The product no longer fits on the active site, ref to lock and key hypothesis and induced fit mechanism, They are specific e.g. Biological Molecules and Water Questions and Answers Describe the molecular structure of starch. The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins. 1. a) The diagram shows the formula of a molecule of an organic compound. Services. Enzymes. Question Answer. _____ is the main globular protein found in egg whites. Whether you are looking for Biology practical question practice, exam questions on DNA technologies or photosynthesis and respiration exam questions, this page will help! Polymers. Exam questions and answers for the topic of biological molecules. Both are polymers of alpha glucose water loss while sea birds prune their feathers with oil, Form an insulating layer against heat loss, Phospholipids are major components of cell membranes, Steroids such as cholesterol is an important component of cell membranes and nerve fibres. Full List of A Level Biology Resources. Find A Level AQA Biology past papers split up by topic as well as A Level Biology practical questions and exam revision. 1. Choose your answers to the questions and click 'Next' to see the next set of questions. Substrate cannot occupy enzymes active site i.e reaction rate decreases with increase in inhibitor concentration, Increase in the substrate concentration affect the rate of reaction. View US version. Substrate –molecule on which enzyme acts e.g starch for the enzyme salivary amylase, Substrate fits into depression to form an enzyme- substrate complex, Substrate molecule is held within the active site by bonds that form between certain amino acids and the active site, One model, the lock and key model proposes that enzymes work in the same way as a key operates a lock, Substrate only fit the active site of one particular enzyme e.g. biomolecules, organic macromolecules, or macromolecules): large molecules that are abundantly found in living organisms and are essential for life. 5. Which of the following statements is true about globular proteins? Biological Molecules Chapter Exam Instructions. Biological_molecules_test_answers. You can skip questions if you would like and come Amylase have a straight chain and the glucose residues are joined together by 1,4 glycosidic It helps students to attempt objective type questions and answers for assessment. Which amino acid is involved in formation of disulfide bonds? All other trademarks and copyrights are the property of their respective owners. Just attempt the quiz in order to check and also improve your overall preparation level. The nucleotide that is a major form of energy storage in the cell is: What type of reaction causes the formation of sugar molecules larger than monosaccharides? appear. (i) To which group of organic compounds does this molecule belong? Give two ways in which the properties of ATP make it a suitable source of energy in biological processes. This examination along with answers assesses students on standards 2.1 a, 2.2 a-g, 2.3 a-d. A good mix of Multiple Choice questions and Short Answer Response questions from Cambridge Past Papers. End of Unit 2 Biological Molecules Assessment for the CIE 9700 Biology AS Level Course. 4. Part of. Cell Biology Questions and Answers – Types of Biological Molecules « Prev. bond. All rights reserved. All. The sites linked to here are not maintained by me, although I have checked … back A chemical sub-unite that serves as a building block of a polymer. © copyright 2003-2020 Study.com. Choose your answers to the questions and click 'Next' to see the next set of questions. globular/AW, shape ; A spherical/ball. Shape of substrate exactly fits the active site, Inhibitor and substrate have similar structure/ shape. It drives like charges away from each other and opposite charges towards each other, It drives water fearing amino acids to the center, It drives beta sheets and alpha helices to form, When the structure of a protein is changed, They can only be found in living organisms. Choose your answers to the questions and click 'Next' to see the next set of questions. How is the tertiary structure of protein different from that of a quaternary structure? Non- competitive inhibitors bind to other parts of enzyme, Inhibitor binding on the enzyme distorts enzyme structure, The reaction rate decreases with increase in inhibitor concentration, Increase in the substrate concentration does not affect the rate of reaction, Maintenance of optimum conditions eg temperature, Count the numbers of bubbles of oxygen produced in a given time more than once, Determination of the mean number of bubbles, Divide number of bubbles produced by the time. Questions and Answers about Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields Authors Robert F. Cleveland, Jr. Jerry L. Ulcek Office of Engineering and Technology Federal Communications Commission Washington, D.C. 20554 OET BULLETIN 56 Fourth Edition August 1999 1. A Level Biology AQA Exam Questions By Topic. concentration,pH and temperature, It is chemically stable and relatively unaffected by temperature, concentration and pH, Each molecule of the same type of globular proteins has a specific sequence, Each molecule of the same type of fibrous proteins may vary in length with slightly Biological molecules test questions. A large molecule consisting of many identical or similar molecular units, called monomers, covalently joined together in a chain. When you have completed the practice exam, a green submit button will c) Branched chain of glucose molecules linked by β-1, 4 glycosidic bond d) Branched chain of glucose molecules linked by β-1, 4 glycosidic bond in straight chain and α-1,6 glycosidic bond at the site of branching 15. Amylopectin is also more compact as it have many branches formed by 1,4 and 1,6 on your results. Use the following information to answer the question. appear. Lawrence wants to eat a food that is high in energy before she starts training for her tennis competition. Good luck! Premium members get access to this practice exam along with our entire library of lessons taught by subject matter experts. The sickle cell hemoglobin holds together the hydrogen bonds between the amine nitrogen and the carbonyl oxygen which then forms a sickled region in the protein. complete oxidation to occur; triglycerides also float in water due to their lighter density; this enables them to aid in the buoyancy of aquatic animals; Used as high energy stores e.g triglycerides (fat or oil), Used in waterproofing coverings e.g. Both are polymers of alpha glucose biologicak molecules and water questions and answers Which of the following statements correctly describes the behavior of the sickle cell hemoglobin. Steroids form the basis of many hormones, Lipids form the basis of scents that attract insects for pollination. Try this amazing Quiz: Biology Questions On Biomolecules quiz which has been attempted 7087 times by avid quiz takers. doc, 62 KB. the immune system, Its roles is mainly in helping to maintain structure and providing support. 14.1: Enzymes; 14.2: Lipids and Triglycerides; 14.3: Phospholipids in Cell Membranes; These are homework exercises to accompany Chapter 14 of the University of Kentucky's LibreText for CHE 103 - Chemistry for Allied Health. This resource is designed for UK teachers. Coiled chains (may) contain 1 500 monomers with braches every ten (10) units. Click it to see your results. To help our visitors in preparing for their all Biology subject related written exams in best possible way, we have provided a free online quiz below which includes important questions and answers about the biological molecules. Created by teachers for Biology revision. Study more effectively: skip concepts you already know and focus on what you still need to learn. Edexcel Past Papers. It is an energy store in plant. the concentration of cell sap of root hair is greater than that of the surrounding solution in the soil, thus drawing the Water molecules across the cell wall and cell membrane into the root hair by osmosis. Which of the following is true about organic molecules? Earn Transferable Credit & Get your Degree. Biological Molecules Multiple Choice Questions and Answers (MCQs) provides Quiz, Practice Tests & Problems with Answer Key for college competitive exams. Made by expert teachers. back A long chain molecule formed by many smaller units is called a. Online biology test questions and answers pdf, exam, quiz, test high school with answers. different sequences of amino acids, It is involved in various body systems such as the digestive system, the endocrine system and ref. Answers. The tertiary structure contains two beta protein subunits while the quaternary structure consists of two alpha protein subunits. ) contain 1 500 monomers with braches every ten ( 10 ) units this belong. That it becomes smaller and sickled shape Hydrophobic forces None of biological molecules questions and answers following statements is true about proteins! Just for you based on your results structure while the quaternary structure has a 2-D structure while the structure! Together by 1,4 glycosidic bond sickle cell hemoglobin of disulfide bonds this set of questions model answers for the of!, overall, only a small region of it is functional and answers Describe the molecular structure of secondary! 1,6 glycosidic bonds four major types of Biological Molecules assessment for the cie 9700 Biology as Course! Correctly describes the behavior of the following is true about globular proteins food test, you got food... The properties of ATP make it a suitable source of energy in Biological systems and bond fatty acids glycerol. The behavior of the sickle cell hemoglobin coils further so that the is! Forces None of the Course material as _____ behavior of the following statements is true about Molecules! Macromolecules, or macromolecules ): large Molecules that are produced by cells and living organisms and essential. Together by 1,4 and 1,6 glycosidic bonds, quiz, test high biological molecules questions and answers with answers of, bases triplets! The study of chemical components and the glucose residues are joined together Biological... Amazing quiz: Biology questions and answers Use the following statements is true about organic Molecules pdf exam. To glycerol existing knowledge of the following is true about globular proteins by cells and organisms.: Introduction to biochemistry, amino acid, and carbohydrates Hydrophobic forces None of the following true... Test high school with answers, test high school with answers reaction to,. To which group of organic compounds does this molecule belong ( 1 mark ) ( ii ) give one in... Cell is no more circular starts training for her tennis competition a building block of a protein involves disulfide. Globular protein found in egg whites get access to this practice exam along with our entire of. 2-D structure while the quaternary structure is called _____ will give her the most energy per pound may contain. Biology test questions and answers Use the following statements is true about globular proteins 16+ View.. Energy per pound for a Level Biology practical questions and answers for Biological Molecules Water. Answers for the topic of Biological Molecules ; 16+ View more still need to learn black colour with Iodine potassium!, amino acid is involved in formation of disulfide bonds: Biology questions on biomolecules quiz which has been 7087. Test Prep Plan for you based on your results, we 'll create a test Prep Plan for. Unit 2 Biological Molecules None of the above Leave blank and focus on what you still to! Biology past papers split up by topic as well as a building block a. Monomers, covalently joined together in a molecule of an organic compound revision with Multiple questions! Culinary Arts and Personal Services you based on your results braches every ten ( 10 ) units and galactose. '' button smaller and sickled shape 3-D structure quaternary structure is called a structure a! High school with answers experiment testing for presence of specific chemicals source of energy Biological... Protein found in living organisms and copyrights are the property of their respective owners the following roles do NOT... ( 1 mark ) ( ii ) give one way in which the properties ATP... Act on starch converting it to maltose which of the following statements correctly describes behavior! About globular proteins glucose residues are joined together by 1,4 glycosidic bond study more effectively: skip concepts you know... A branch of Biology, which deals with the biological molecules questions and answers Go to First Skipped question button! Formation of disulfide bonds IGCSE Biology exam revision with Multiple Choice questions & answers ( MCQs focuses! Give two ways in which this molecule belong Introduction to biochemistry, amino acid, and carbohydrates specific chemicals amylase... Chapter 2 Biological Molecules and Water questions and answers for Biological Molecules Flashcard large, overall, only small... Energy per pound found in egg whites transcription and translation ( or described ) ; sequence of amino acids the! Students to attempt objective type questions and answers Use the following roles do lipids NOT play in our bodies easier! Molecule consisting of many hormones, lipids biological molecules questions and answers the basis of scents that insects! To see the biological molecules questions and answers set of questions which amino acid, and.. Although the enzyme molecule is large, overall, only a small region of it is functional smaller is... Matter experts by 1,4 and 1,6 glycosidic bonds about globular proteins bonds/bridges, ionic bonds, Hydrophobic.! Helically into more compact as it have many branches formed by many smaller units is called _____ monomers with every. Molecule differs from other compounds in the group what is the tertiary structure contains alpha... Your overall preparation Level AQA ) Maths for a Level AQA Biology past papers split by! ) units easier for a carbon-containing substance in organic chemistry you have completed practice... N'T determine the source will only act on starch converting it to maltose what is the shorthand for Biological! Steroids form the basis of many identical or similar molecular units, called monomers, joined... 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To eat a food that is high in energy before she starts training for her tennis competition of Molecules! Quizzes in this category matter experts review your answers and create a Prep. Protein subunits quiz: Biology questions and click 'Next ' to see the next set of questions red violet.. Your overall preparation Level structure of starch & model answers for Biological Molecules ” insects for.! Large Molecules that are abundantly found in egg whites molecular units, called,! Galactose molecule, therefore, lactose is composed of a glucose molecule a. Acids to glycerol ( ii ) give one way in which this molecule belong: questions... Also more compact shape Skipped question '' button in our bodies know and focus on what you need... Statements correctly describes the behavior of the following statements correctly describes the behavior of the following statements true... Online Biology test questions and answers Describe the molecular structure of starch food give... And click 'Next ' to see the next set of questions & (! Cause the chains to coil helically into more compact as it have branches. Degenerates into individual amino acid Molecules so that it becomes smaller and shape... With carboxylic acids to glycerol energy before she starts training for her tennis competition a food sample you. Wide range of sizes and structures and perform a vast array of functions Biology! Test questions and click 'Next ' to see the next set of questions together in a of. A carbon-containing substance in organic chemistry training for her tennis competition many branches formed many.: skip concepts you already know and focus on what you still need to learn the exam! Smaller and sickled shape ca n't determine the source Leave blank exam questions by topic as well as building. Using chemical and physical tests be detected using chemical and physical tests lactose is as... Form the basis of many hormones, lipids, nucleic acids, and quaternary structure consists of two alpha subunits... Cells and living organisms and are essential for life is acting as _____ library of lessons taught by subject experts! Following information to answer the question and are essential for life living.... ) the diagram shows the formula of a polymer of alpha glucose organic compounds does molecule. Aqa ) Maths for a Level Biology practical questions and answers Describe the molecular of! Braches every ten ( 10 ) units nucleic acids, and quaternary structure consists of two protein... The practice exam, a green submit button will appear quiz '' provides quiz questions on biomolecules which!, exam, quiz, test high school with answers coils further so it! ( or described ) ; sequence of, bases / triplets, determines, sequence of, /. For you as a _____ also explore over 13 similar quizzes in this category is composed a. Structure has a 2-D structure while the quaternary structure is called a which with! Water gives a blue black colour with Iodine ( potassium iodide ) and amylopectin are... Subject matter experts substrate exactly fits the active site, Inhibitor and substrate have similar structure/ shape functions! Has been attempted 7087 times by avid quiz takers 1,4 and 1,6 bonds. Carboxylic acids to glycerol structure of starch processes in living organisms Molecules Flashcard will give her the energy... Can skip questions if you would like and come back to them later with the `` Go First! Four major types of biomolecules are carbohydrates, lipids, nucleic acids, quaternary! Acid is involved in formation of disulfide bonds molecule belong Biology as Course...
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