IB Biology Bundled Exams Questions and Answers Multiple Versions Latest Updates (2024/2025) (Complete, Accurate, and Verified)

IB Biology B2.1 - Membranes and Membranes Transport Questions And Answers Rated A+ Why do cells need membranes? • To distinguish itself from its surroundings • To be selective about what gets in and out How do lipids assemble to form a semipermeable membrane? Being cylindrical, phosp...

IB Biology Topic 6 Latest Update 100% Pass pathogen any disease-producing agent (especially a virus or bacterium) antigen any surface protein that may elicit an immune response or cell recognition digestion the process where food is converted into smaller molecules that can be absorbed ...

IB Biology Cell Structure Latest Version Graded A+ Nucleolus Structure: Darker spot within nucleus Function: Ribosomal RNA synthesis Nucleus Structure: Large spot within cell Function: Genetic material storage, controls cell processes Ribosomes Structure: Small spheres Function: Build...

IB Biology - Unit 7 - Nucleic Acids HL 100% Solved Antiparallel strands DNA is anti-parellel, meaning the strands run in opposite directions to each other. If one has a 3' at the top the other has a 3' at the bottom, Purines Adenine and Guanine. Pyrimidines Cytosine, Thymine and Uraci...

IB Biology A3.1 - Diversity of Organisms 100% Correct organism any biological system that functions as an individual life form; all living organisms are composed of cells population a group of organisms that belong to the same species and live in the same area; population can vary in same...

IB Biology 1.1 Latest Version with Complete Solutions Cell Theory 1. All living things are composed of cells and cell products 2. New cells are formed only by the division of pre-existing cells 3. The cell contains inherited information that are used as instructions for growth, functioning, ...

IB Biology - Scientists of IB Bio 100% Correct Robert Hooke First person to observe cells and write the cell theory Ernst Ruska Developed the electron microscope in 1930s and won the Nobel Prize for it Friedrich Wohler Urea synthesis which falsified the theory of vitalism Davson-Danie...

IB Biology Command Terms 100% Correct Distinguish Make clear the differences between two or more concepts or items Estimate Find an approximate value for an unknown quantity Compare Give an account of similarities and differences between two, or more, items referring to both, or all, of...

IB HL Biology Topic 10 Latest 2024 Graded A+ linked genes Genes located on the same chromosome that tend to be inherited together in genetic crosses gene loci specific locations of genes along the chromosome Discrete variation Inherited characteristic that have a limited number of varia...

All IB Biology Processes Latest Update with Verified Solutions Stem Cell Therapy 1. triggering the differentiation of stem cells into desired cell type 2. surgical implantation of differentiated cells into patients tissue 3. suppression of immune system so they do not get destroyed 4. monit...

IB Biology: Chapter 1.6 Latest Update Graded A cell cycle all stages in the life cycle of a cell interphase composed of G1, S, and G2; = the growth of the cell. G1 - DNA transcription - protein synthesis (centrioles) - cell Respiration (produces energy) - growth of cell volume - orga...

IB Biology HL Option A.4 Questions and Answers Already Passed What is innate behaviour? Provide an example. inherited from parents and develops independently of environment as it is unaffected by animal's experiences e.g. palmer grasp reflex in babies How can innate behaviour change? What ...

IB Biology SL — Topic 1 • Cell Biology with Complete Solutions Cell theory 1. All living things are composed of cells 2. Cells are the smallest unit of life 3. Cells only arise from pre-existing cells Striated muscle cell Exception to cell theory! → Muscle cells fuse to form fibr...

IB Biology Paper 1 Questions And Answers Already Passed Prokaryote or Eukaryote in paramecium? Compartments in the cell indicates that it's a eukaryote Property of water which makes it suitable for living? Thermal Watson and Crick discovery about DNA DNA is double helix What occurs ...

C.2 - IB Biology Questions and Answers 100% Solved Define food web. a diagram that shows how food chains are linked together. Define Gersmehl diagram. shows differences in nutrient flow and storage between ecosystems. What are three sinks for nutrient storage? Biomass, litter & Soil ...

IB Biology Unit 1 (Cell Biology - SL) Latest Update Graded A+ Cell Theory all living things are made up of cells, all cells come from previous cells, the cell is the basic fundamental unit of life Functions of life that the cell must carry out -Nutrition: obtaining food, to provide energy ...

IB BIOLOGY - HUMAN PHYSIOLOGY QUESTIONS AND ANSWERS ALREADY PASSED What is injestion? Ingestion is eating food What is Digestion? Passage of smaller molecules from the digestive What is Absorption? Passage of smaller molecules from the digestive system into the bloodstream or lymphatic...

IB Biology HL Topic 8 Latest Version Graded A+ Oxidation involves the loss of electrons from an element; frequently involves gaining oxygen or losing hydrogen Reduction involves a gain of electrons; frequently involves losing oxygen or gaining hydrogen Glycolysis first stage of cell re...

IB Bio HL I Semester 1 Exam Review with Certified Solutions Outline the Cell Theory -All organisms are composed of one or more cells -Cells are the smallest unit of life -All cells come from pre-existing cells Discuss the evidence for Cell Theory -Robert Hooke uses microscope to observe l...

IB Biology 1.2 Latest Update Already Passed Resolution Resolution is defined as the shortest distance between two points that can be distinquished Explain why electron microscopes have a better resolution than light microscopes because the wavelength of the electrons is thousands of times...

IB Biology HL Topic 7 Latest 2024 Graded A DNA structure antiparallel strands, 3'-5' linkages, and H bonding between purines and pyrimidines Nucleosomes consist of DNA wrapped around 3 histone proteins and are held together by another histone protein Nucleosomes help to supercoil chr...

IB Biology Ch2 Molecular Biology Latest Update 100% Correct Most common elements found in living organisms Carbon, Hydrogen, Oxygen, Nitrogen. Organic molecules Compounds that contain atleast two Carbon Inorganic molecules Compounds that do not contain Carbon Monomers Small subunits ...

IB Biology 1.5 Latest Version Already Graded A Endosymbiotic theory a theory that some eukaryotic organelles, such as mitochondria and chloroplasts, originated as free-living prokaryotes that invaded primitive eukaryotic cells. Allowed growth of smaller cells in a cytoplasm, through endocyto...

IB Biology Topic 1: Cell Biology Latest Update Graded A Cell theory The theory that cells form the fundamental structural and functional units of all living organisms. Differentiation The expression of a particular gene(s) and not others in order for cell specialisation. Emergent prope...

IB Biology - 1.1 Latest Update Graded A cell theory theory that states that all organisms are composed of cells, and that all cells come from pre-existing cells centi metric prefix for 1/100th or 1 • 10^(-2) coarse focus dial used to initially focus a light microscope on a specimen di...

IB Biology Review with Complete Solutions cell theory -All living things are composed of cells -cells come from preexisting cells -Cells are smallest unit of life Challenges to cell theory: muscle fibres -They are fused cells, so they're long and have multiple nucleus -challenges...

C.3 - IB Biology Latest Update 100% Correct Define alien species. a species which arrives in a non-native habitat. Give three examples of alien species. zebra mussels, japanese knotweed, cane toad. Define biological control of invasive species and give an example. the control of an invas...

IB Biology: Chapter 1 Latest 2024 Graded A+ cell theory - all living things are composed of cells - the cell is the smallest unit of life - cells only arise from pre-existing cells challenges to the cell theory - *striated muscle* challenges the idea that a cell has one nucleus - *giant...

IB BIOLOGY GENETICS LATEST 2024 GRADED A+ Gene a heritable factor that controls a specific characteristic. Allele one specific form of a gene, differeing from other alleles by one or a few bases only and occupying the same locus as other alleles of the gene. Genome The whole of the gene...

IB Biology HL Exam Review Latest Version Already Graded A Outline the cell theory. Living organisms are composed of cells. Cells are the smallest unit of life. Cells come from pre-existing cells. Discuss the evidence for the cell theory. The nature of scientific theories could be introduced...

IB Biology - Unit 1 - Cell Biology Latest Version 100% Pass Cell Theory The theory that cells form the fundamental structural and functional units of all living organisms Unicellular A single celled organism Multicellular Made up of more than one cell. Prokaryotic A small single cell...

IB Biology SL Latest Update Graded A+ Organic compound A compound that contains carbon found in living organisms, excluding carbonates and oxides Enzyme Biological catalysts made of protein that speed up the rate of a reaction Active site The region of an enzyme where the substrate binds ...

IB Biology Latest Update with Verified Solutions genotype the alleles of an organism phenotype the characteristic of an organism dominant allele an allele that has the same effect on the phenotype when present in both homozygous and heterozygous states co-dominant alleles pair of all...

IB Biology HL Questions and Answers Already Passed What are the characteristics common to all forms of life? reproduction, carbon, responds to surroundings, Growth and Development, cellular organization, and energy What are the levels of biological organization from simple to most complex?...

IB Biology Paper 2 Section B Questions and Answers Already Passed Draw a labelled diagram of the human adult male reproductive system. [5 marks] a. scrotum - shown around testes; b. testes/testis/testicles - shown inside scrotum; c. epididymis - shown adjacent to testis and connected to sperm d...

IB Biology Year 1 Review with Complete Solutions ecology the study of relationships between living organisms and between organisms and their environment ecosystem a system made up of organisms as well as the abiotic factors in the area population a group of organisms of the same species who liv...

IB biology chapter 6 with verified solutions explain why digestion of large food molecules is essential 1. food needs to be broken down and reassembled 2. large food molecules need to be broken down into smaller ones explain the need for enzymes in digestion 1. enzymes break down large ...

IB Biology - Molecular Biology (Topic 2 SL) Rated A+ Carbon Element of life able to form four particularly stable covalent bonds Organic compound A compound that contains carbon and is found in living things Carbohydrates Class of molecules with the general formula - CH2O Glycogen For...

UWCSEA IB Biology 2025 - A2.1 Origins of Cells with Complete Solutions A2.1.1—What were the conditions on early Earth? What pre-biotic (pre-life) carbon compounds were present? there was a lack of free oxygen; and therefore no ozone to protect from UV radiation; so high levels of UV penetra...