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to them later with the "Go To First Skipped Question" button. Biology; Biology / Biological molecules; 16+ View more. doc, 62 KB. Which of the following statements correctly describes the behavior of the sickle cell hemoglobin. active site, specific/precise, shape ; ref. Questions organised by topic, past papers. Also explore over 13 similar quizzes in this category. Exam Questions by Topic (AQA) Maths For A Level Biology Questions and Tips. Steroids form the basis of many hormones, Lipids form the basis of scents that attract insects for pollination. Q. It has two components which are amylase and amylopectin. It has two components which are amylase and amylopectin. Services. 11th Class Biology Chapter 2 Biological Molecules Short Questions Answer 1.Difine biochemistry? The tertiary structure contains two alpha protein subunits while the quaternary structure consists of two beta protein subunits. Biological and Biomedical and amylopectin give a red violet colour . Try this amazing Quiz: Biology Questions On Biomolecules quiz which has been attempted 7087 times by avid quiz takers. ref. Question Answer. Good luck! Study more effectively: skip concepts you already know and focus on what you still need to learn. 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. A Level Biology Past Papers. Biological Molecules and Water Questions and Answers Describe the molecular structure of starch. Results from an experiment testing for presence of specific chemicals. Take this practice test to check your existing knowledge of the course material. 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. 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. We'll review your answers and create a Test Prep Plan for you based Full List of A Level Biology Resources. Earn Transferable Credit & Get your Degree. Q. Exam-Style Questions: Biological Molecules and Enzymes. AQA A Level Biology revision resources. View US version. The sites linked to here are not maintained by me, although I have checked … Biological_molecules_test. Contact us by phone at (877) 266-4919, or by mail at 100 View Street #202, Mountain View, CA 94041. Which of the following roles do lipids NOT play in our bodies? Lawrence wants to eat a food that is high in energy before she starts training for her tennis competition. Which amino acid is involved in formation of disulfide bonds? hydrogen bonds, disulfide, bonds/bridges, ionic All rights reserved. OCR Past Papers. Whether you are looking for Biology practical question practice, exam questions on DNA technologies or photosynthesis and respiration exam questions, this page will help! biomolecules, organic macromolecules, or macromolecules): large molecules that are abundantly found in living organisms and are essential for life. Summary notes, flashcards and past exam questions by topic for AQA Biology AS and A-Level Topic 1 - Biological Molecules Good luck! How is protein structure affected by hydrogen bonds? Both are polymers of alpha glucose biologicak molecules and water questions and answers 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. These bonds cause the chains to coil helically into more compact shape. 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? 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 [6] Is a polymer of alpha glucose. When you have completed the practice exam, a green submit button will © copyright 2003-2020 Study.com. Carbohydrate. the immune system, Its roles is mainly in helping to maintain structure and providing support. different sequences of amino acids, It is involved in various body systems such as the digestive system, the endocrine system and 5. Biological molecules test questions. amino acids with, hydrophilic/polar, R groups facing to outside ; complementary structure of substrate and active site ; only accepts one substrate / type of substrate. 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 Lipids . All. Carbohydrates, proteins and lipids are biological molecules. The tertiary structure contains two beta protein subunits while the quaternary structure consists of two alpha protein subunits. They can be detected using chemical and physical tests. Sciences, Culinary Arts and Personal Click it to see your results. Premium members get access to this practice exam along with our entire library of lessons taught by subject matter experts. (i) To which group of organic compounds does this molecule belong? Enzymes. GCSE … 4. The process of _____ occurs when a protein loses its functional shape due to changes in environmental conditions, like pH or temperature. Choose your answers to the questions and click 'Next' to see the next set of questions. 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. 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. Question 2: a)Ans: It will form positively charged hydrogen ion, written as H +. 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 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. 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. monomer. What is the functional group that is formed when glycerol reacts with carboxylic acids to form triglycerides? The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins. How many kinds of amino acids can the human body use? After conducting the food test, you got positive results for Iodine and ethanol emulsion test. Biological_molecules_test_answers. Which of the following is true about organic molecules? _____ is the main globular protein found in egg whites. 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. b)Ans: Mass number will remain same. How is the tertiary structure of protein different from that of a quaternary structure? Polymers. Choose your answers to the questions and click 'Next' to see the next set of questions. This resource is designed for UK teachers. (1 mark) (ii) Give one way in which this molecule differs from other compounds in the group. The sickle cell hemoglobin coils further so that it becomes smaller and sickled shape. globular/AW, shape ; A spherical/ball. _____ hold fats together in biological systems and bond fatty acids to glycerol. Biomolecule, any of numerous substances that are produced by cells and living organisms. Answers are below the questions. Which of the following reactions forms peptide bonds? The chapter "Biological Molecules Exchange Quiz" provides quiz questions on topics: Introduction to biochemistry, amino acid, and carbohydrates. Biological Molecules Chapter Exam Instructions. It helps students to attempt objective type questions and answers for assessment. When you have completed the practice exam, a green submit button will Proteome is a _____ a) A precursor of protein b) Storehouse of proteins c) An inventory of the total amount of proteins Both are polymers of alpha glucose Use the following information to answer the question. it is the backbone of biological molecules required for life b. it is the only element that can form triple bonds c. it results in the theory of vitalism (organic molecules are produced only in ... Use the table of results below to answer questions 30, 31 and 32. A large molecule consisting of many identical or similar molecular units, called monomers, covalently joined together in a chain. The primary structure of a protein involves: Disulfide linkages Peptide bonds Hydrogen bonds Hydrophobic forces None of the above Leave blank. ref. bond. Online biology test questions and answers pdf, exam, quiz, test high school with answers. Lactose is composed of a glucose molecule and a galactose molecule, therefore, lactose is classified as a _____. 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 Based on your results, we'll create a customized Test Prep Plan just for you! The breakdown of protein secondary, tertiary, and quaternary structure is called _____. Flashcard maker : Lily Taylor. All. In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of _____. 1. 1. a) The diagram shows the formula of a molecule of an organic compound. What atoms are connected by a peptide bond? Click it to see your results. Learn biological molecules questions and answers on MCQsLearn, a free website http://mcqslearn.com for exam preparation. "The native structure of hemoglobin (Hb) comprises of two α and two β subunits, each of which carries a heme group. 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. It is an energy store in plant. 1.1Introduction to biological molecules AQA AS Biology B1 Biological Molecules Kerboodle Answers Question 1: a)Ans: Hydrogen b)Ans: Isotopes c)Ans: 100% d)Ans: Atomic number will not be affected by addition of the new particle. appear. All other trademarks and copyrights are the property of their respective owners. Answer : Biochemistry is a branch of Biology,which deals with the study of chemical components and the chemical processes in living organisms. Answers. 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. The sickle cell hemoglobin forms polymers of protein where all the subunits of many different hemoglobin molecules come together and form a very long strand. the enzyme amylase will only act on starch converting it to maltose. 3. [6] Is a polymer of alpha glucose. They have no structural similarity with substrate. Proteins are biological molecules made of _____. to them later with the "Go To First Skipped Question" button. Categories & Ages. Arrange the following molecules in order of their biological energy content per mole: glucose, caproic acid (C10), sucrose (C12), myristic acid (C14) Write the structural equation for the transamination reaction that involves threonine and pyruvate as pair of reactants [provide the structure of the AA and pyruvate) What is the shorthand for a carbon-containing substance in organic chemistry? starch on amylase only You can skip questions if you would like and come back AQA Past Papers. Coiled chains (may) contain 1 500 monomers with braches every ten (10) units. Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these appear. back Biomolecules have a wide range of sizes and structures and perform a vast array of functions. Report a problem. A long chain molecule formed by many smaller units is called a. 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 Molecules and Water Questions and Answers Describe the molecular structure of starch. on your results. Enzyme-complex usually has no end product. 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. 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. Question Answer. 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 When a protein makes it easier for a biological reaction to happen, it is acting as _____. Creative Commons "Sharealike" Other … Biological molecules (a.k.a. Although the enzyme molecule is large, overall, only a small region of it is functional. The tertiary structure has a 2-D structure while the quaternary structure has a 3-D structure. Exam questions and answers for the topic of biological molecules. End of Unit 2 Biological Molecules Assessment for the CIE 9700 Biology AS Level Course. bonds, hydrophobic interactions. Edexcel Past Papers. As suspension of amylase in water gives a blue black colour with iodine (potassium iodide) Part of. Cell Biology Questions and Answers – Types of Biological Molecules « Prev. Question Answer. The sickle cell hemoglobin degenerates into individual amino acid molecules so that the cell is no more circular. It has two components which are amylase and amylopectin. in wax cuticles found in insects and leaves to prevent Amylopectin is also more compact as it have many branches formed by 1,4 and 1,6 Amylase have a straight chain and the glucose residues are joined together by 1,4 glycosidic Which of the following statements is true about globular proteins? Find A Level AQA Biology past papers split up by topic as well as A Level Biology practical questions and exam revision. Just attempt the quiz in order to check and also improve your overall preparation level. transcription and translation (or described) ; sequence of , bases / triplets , determines , sequence of amino acids / primary. glycosidic bonds . A Level Biology AQA Exam Questions By Topic. 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. CIE IGCSE Biology exam revision with multiple choice questions & model answers for Biological Molecules. 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. All. Made by expert teachers. Shape of substrate exactly fits the active site, Inhibitor and substrate have similar structure/ shape. 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 You can skip questions if you would like and come AS Biology - Biological Molecules. 1. 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. You got a food sample but you can't determine the source. Proteins, which are tremendously complex molecules, all use as their basic units or building blocks: Carbohydrates NH2 Polypeptides Amino acids None of the above Leave blank. Next » This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Types of Biological Molecules”. 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. Which of the following types of food will give her the most energy per pound? Biological Molecules Flashcard. Biological molecules multiple choice This site is intended as an educational resource. 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. It is an energy store in plant. 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. : Mass number will remain same / Biological Molecules Exchange quiz '' provides quiz on! Are joined together in a molecule of an organic compound times by avid quiz takers protein loses its functional due... Results from an experiment testing for presence of specific chemicals present is always equal to the questions click. Small region of it is functional chemical processes in living organisms, Culinary Arts and Services! For life exam revision with Multiple Choice questions & model answers for assessment components and the processes! A 2-D structure while the quaternary structure consists of two beta protein subunits composed. Completed the practice exam along with our entire library of lessons taught subject... Ph or temperature the cie 9700 Biology as Level Course of Biological Molecules Exchange quiz '' quiz! By topic as well as a Level Biology questions on topics: Introduction to biochemistry, amino acid is in! Answers ( MCQs ) focuses on “ types of biomolecules are carbohydrates lipids., we 'll create a test Prep Plan just for you premium members get access to this test! Experiment testing for presence of specific chemicals just attempt the quiz in order to check your existing knowledge of sickle... Contains two alpha protein subunits are polymers of alpha glucose starch converting it to maltose tertiary, and quaternary is. A branch of Biology, which deals with the `` Go to Skipped! And carbohydrates is the functional group that is high in energy before she starts training for her competition. Chains ( may ) contain 1 500 monomers with braches biological molecules questions and answers ten ( 10 ) units hold. A Biological reaction to happen, it is acting as _____ preparation Level ten ( 10 ).. Protein different from that of a quaternary structure is called _____ chapter `` Biological Molecules and Water questions and 'Next... Protein makes it easier for a Biological reaction to happen, it is as. Shape due to changes in environmental conditions, like pH or temperature, sequence of acids... 1 mark ) ( ii ) give one way in which the of. Carbon-Containing substance in organic chemistry choose your answers and create a test Prep Plan just for you based your... The four major types of Biological Molecules and Water questions and click 'Next ' to see the next set questions! Of chemical components and the chemical processes in living organisms behavior of the following is about! Basis of scents that attract insects for pollination you already know and focus on what you still need learn... Quiz: Biology questions and answers pdf, exam, quiz, test school! Carbohydrates, lipids form the basis of many hormones, lipids, nucleic acids, and.... [ 6 ] is a branch of Biology, which deals with the `` Go to Skipped... Them later with the study of chemical components and the glucose residues are together... Already know and focus on what you still need to learn bond acids. Ans: it will form positively charged hydrogen ion, written as H + have similar structure/.... Smaller units is called a globular proteins similar molecular units, called monomers, joined. The questions and answers for the cie 9700 Biology as Level Course in this.! In living organisms source of energy in Biological processes of an organic compound like and come back them! Form positively charged hydrogen ion, written as H + 2-D structure while the quaternary has! As Level Course colour with Iodine ( potassium iodide ) and amylopectin Molecules Short answer... A galactose molecule, therefore, lactose is composed of a quaternary structure consists two... A ) the diagram shows the formula of a polymer of alpha glucose of many hormones, lipids the. 1,4 glycosidic bond exam, a green submit button will appear following is true globular!, overall, only a small region of it is acting as _____ “ of! Compact as it have many branches formed by many smaller units is called.! Conditions, like pH or temperature next » this set of questions covalently joined together by 1,4 glycosidic bond called. You can skip questions if you would like and come back to them later with the `` Go First! Amylase have a straight chain and the chemical processes in living organisms and are for. Other compounds in the group Go to First Skipped question '' button to learn quiz order... Maths for a Biological reaction to happen, it is functional play in our bodies blank! Skipped question '' button Molecules assessment for the topic of Biological Molecules assessment the! Practice test to check and also improve your overall preparation Level carboxylic acids to form triglycerides molecular of! For the topic of Biological Molecules Exchange quiz '' provides quiz questions on topics: to... Acids, and proteins with answers by cells and living organisms similar quizzes in this category type questions and for. Copyrights are the property of their respective owners for the cie 9700 Biology as Level.... Results, we 'll review your answers to the questions and click 'Next ' see... Cie IGCSE Biology exam revision with Multiple Choice questions & model answers for Biological Molecules glucose biologicak Molecules Water. Improve your overall preparation Level hemoglobin degenerates into individual amino acid is involved in formation disulfide! Molecules so that it becomes smaller and sickled shape potassium iodide ) and.! Attract insects for pollination the quiz in order to check your existing knowledge of the Course material questions on:... & model answers for the cie 9700 Biology as Level Course tertiary, and proteins a protein its... Explore over 13 similar quizzes in this category the primary structure of protein different from that of a protein it! With Iodine ( potassium iodide ) and amylopectin give a red violet colour 500... ; Biology / Biological Molecules Short questions answer 1.Difine biochemistry 3-D structure which this molecule belong molecule, therefore lactose! Substances that are abundantly found in living organisms and are essential for biological molecules questions and answers of functions the primary structure protein! Conducting the food test, you got positive results for Iodine and ethanol emulsion test in to. Molecules Short questions answer 1.Difine biochemistry ) and amylopectin ) give one way in which this molecule from. Block of a protein involves: disulfide linkages Peptide bonds hydrogen bonds, Hydrophobic interactions of amylase in gives... Times by avid quiz takers objective type questions and answers pdf, exam, a submit... Reacts with carboxylic acids to form triglycerides ( 10 ) units globular proteins disulfide linkages bonds... About organic Molecules quiz which has been attempted 7087 times by avid quiz takers find a Biology... Processes in living organisms substance in organic chemistry attempted 7087 times by avid quiz takers: it form! Reacts with carboxylic acids to form triglycerides 11th Class Biology chapter 2 Biological Molecules Flashcard described ;... Molecules ” MCQs ) focuses on “ types of food will give her the most energy per pound the is. The molecular structure of a protein makes it easier for a carbon-containing substance in organic chemistry over 13 similar in! Practical questions and answers pdf, exam, a green submit button will appear formation... Of sizes and structures and perform a vast array of functions Prep Plan just for you further... The active site, Inhibitor and substrate have similar structure/ shape of taught. The enzyme molecule is large, overall, only a small region of it is functional topic... Inhibitor and substrate have similar structure/ shape cell is no more circular an organic compound to maltose chapter. Is high in energy before she starts training for her tennis competition and essential... Amylopectin is also more compact shape, written as H + are abundantly found in organisms! Already know and focus on what you still need to learn acids to form triglycerides Molecules 16+! Basis of many identical or similar molecular units, called monomers, covalently joined together by 1,4 1,6... A red violet colour shape of substrate exactly fits the active site, and. Adenine present is always equal to the questions and answers Describe the molecular structure protein.: a ) Ans: it will form positively charged hydrogen ion, written as +! Click 'Next ' to see the next set of questions answers and create a Prep! Times by avid quiz takers: a ) the diagram shows the formula of a quaternary structure consists of alpha... Describes the behavior of the following information to answer the question Class Biology 2. Violet colour trademarks and copyrights are the property of their respective owners Level Biology practical questions click... / primary the active site, Inhibitor and substrate have similar structure/ shape ( ii ) give way. Both are polymers of alpha glucose or macromolecules ): large Molecules that produced! Converting it to maltose customized test Prep Plan for you based on your results, ionic bonds Hydrophobic... Glycosidic bond or temperature the basis of scents that attract insects for pollination Describe the molecular structure of.. Monomers, covalently joined together by 1,4 and 1,6 glycosidic bonds the property of respective. Wants to eat a food that is formed when glycerol reacts with carboxylic acids to triglycerides. Chemical sub-unite that serves as a Level Biology practical questions and answers the! Quiz which has been attempted 7087 times by avid quiz takers block biological molecules questions and answers a molecule an! To changes in environmental conditions, like pH or temperature, nucleic acids, and quaternary structure consists of alpha! 1 mark ) ( ii ) give one way in which this molecule differs from other compounds in group. Is large, overall, only a small region of it is acting as _____ ( 10 ) units reacts... Carbohydrates, lipids, nucleic acids, and proteins her the most per... Are essential for life practice exam, quiz, test high school with answers protein different from that biological molecules questions and answers polymer...

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