Biological molecule Study guides, Class notes & Summaries

What is the charge of oxygen in a H2O molecule? - Answer Slightly negative Draw a diagram of hydrogen bonding on paper - Answer Diagram of hydrogen bonding Why is ice less dense than liquid water? - Answer The hydrogen bonds between molecules in ice are slightly further apart than the average distance between liquid water molecules What is an advantage to living organisms of ice being less dense than water? - Answer Ice floats and forms an insulating layer on top of ponds, maint...

AQA A LEVEL Biology: 3.1 Biological Molecules All Answers Correct Define monomer reactions). The smaller units from which larger molecules are made (via condensation List examples of monomers Amino acids Nucleotides Define polymer Monosaccharides Molecules made from large number of monomers joined together (via condensation reactions). Define Condensation reaction A reaction joining two molecules together with the formation of a chemical bond. Eliminates a molec...

biological molecules and their importance in maintaining biochemical processes. first assignments given for unit 1o . distinction levelled and references included

AQA A-Level Biology (new spec) Unit 1A - Biological Molecules Latest 2023 Graded A+ Monomers Small basic molecular units Examples of monomers monosaccharides, amino acids and nucleotides Polymers Large complex molecules composed of long chains of monomers joined together Examples of polymers Carbohydrates, proteins and nucleic acids What type of sugar is glucose? Hexose How many types of glucose are there? 2 What are the names of the types of glucose? Alpha-glucose and beta-glucose Struct...

Biological molecules PPQ Exam 2023...

AQA A-Level Biology Topic 1: Biological Molecules Already Graded A+ What are monomers? molecules. What are polymers? Monomers are *small units* which are the components of larger Polymers are molecules made from *many monomers* joined together. What are examples of monomers? What are examples of polymers? *Monosaccharides, amino acids* and *nucleotides* *Polysaccharides, polypeptides* and *polynucleotides* What reaction allows two monomers to bond together? A *condensa...

Biochem Module 5 Questions and Answers 100% Verified Glycerol contains how many carbon atoms? - 3 - 4 - 5 - 15 - 3 Which of the following are derived from or made from fatty acids? - Cholesterol - Carotenoids - Phosphoglycerides - Both A and B - Both A and C - Phosphoglycerides Triacylglycerols are made from a ________ and ________. - glycerol; cholesterol Correct! - glycerol; three fatty acids - ceramide; three fatty acids - ceramide; three cholesterols - carotenoid; two cholester...

AQA A-level BIOLOGY 7402/2 Paper 2 Question Paper + Mark scheme [MERGED] June 2022 *jun* IB/M/Jun22/E12 7402/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions i...

Humans and mice differ because - CORRECT ANSWER-their cells have some differences in the sequence of nucleotides in their nucleic acids. Molecules with which functional groups may form polymers via dehydration reactions? - CORRECT ANSWER-either hydroxyl or carboxyl groups Which of these molecules is not formed by dehydration reactions? - CORRECT ANSWER-fatty acids In animal metabolism, most of the monomers released by digestion of food macromolecules are metabolized to provide energy. O...

describe the basic functions all life forms must accomplish -response to environmental stimuli & maintain homeostasis -uptake and processing of nutrients/energy -regulation -growth and reproduction compare and contrast eukaryotic and prokaryotic cell types Prokaryotes: -circular chromosomes, no nucleus, no organelles, 3.5 bya -DNA concentrated in nucleoid Eukaryotes: -linear chromosomes, nucleus, organelles, 1.5 bya -DNA concentrated in nucleus Both: -cellular function takes p...