Active transport is used to load organic compounds into phloem sieve tubes at the source. They consist of 60 hours of study. ATP from cell respiration is immediately available as a source of energy in the cell. Transpiration is the inevitable consequence of gas exchange in the leaf. Thyroxin is secreted by the thyroid gland to regulate the metabolic rate and help control body temperature. Oh, IB Biology. Ethology is the study of animal behaviour in natural conditions. This comes in handy when you’re revising for finals and need to determine which information is essential and which information you don’t need to … The rate of transit of materials through the large intestine is positively correlated with their fibre content. The Bohr shift explains the increased release of oxygen by hemoglobin in respiring tissues. General IB Revision Materials: AP/IB Lab Format; Biology: Design Practical The composition of blood in the renal artery is different from that in the renal vein. Cons: Not IB aligned. Structure of cardiac muscle cells allows propagation of stimuli through the heart wall. Detritivores are heterotrophs that obtain organic nutrients from detritus by internal digestion. Anabolism is the synthesis of complex molecules from simpler molecules including the formation of macromolecules from monomers by condensation reactions. Type I pneumocytes are extremely thin alveolar cells that are adapted to carry out gas exchange. The tertiary structure is the further folding of the polypeptide stabilized by interactions between R groups. Gene expression is regulated by proteins that bind to specific base sequences in DNA. Plants transport water from the roots to the leaves to replace losses from transpiration. Make the most out of the syllabus If you look at the Biology HL syllabus , you will find an entire section dedicated to the learning objectives and unit-by-unit breakdowns. DNA differs from RNA in the number of strands present, the base composition and the type of pentose. A gene on the Y chromosome causes embryonic gonads to develop as testes and secrete testosterone. Categories Syllabus Tags Biology Syllabus, IB Biology, International Baccalaureate, Syllabus Post navigation Class 12 Biology (Botany + Zoology) Syllabus 2020 (Nepal) Prokaryotic cells- characteristics, structure, division, examples Enzymes have an active site to which specific substrates bind. Processes in spermatogenesis and oogenesis result in different numbers of gametes with different amounts of cytoplasm. Clones are groups of genetically identical organisms, derived from a single original parent cell. Most flowering plants use mutualistic relationships with pollinators in sexual reproduction. Raised hydrostatic pressure causes the contents of the phloem to flow towards sinks. Carbon dioxide is produced by respiration and diffuses out of organisms into water or the atmosphere. The fossil record provides evidence for evolution. Some neurotransmitters excite nerve impulses in postsynaptic neurons and others inhibit them. Transgenic organisms produce proteins that were not previously part of their species' proteome. Taxonomists sometimes reclassify groups of species when new evidence shows that a previous taxon contains species that have evolved from different ancestral species. Species are groups of organisms that can potentially interbreed to produce fertile offspring. Melatonin is secreted by the pineal gland to control circadian rhythms. 2019/2020 - Marvin Ridge High - 2019-2020. Your active For HL, there is 60 hours of material. An axon grows from each immature neuron in response to chemical stimuli. Saprotrophs are heterotrophs that obtain organic nutrients from dead organisms by external digestion. Multiple sequence alignment is used in the study of phylogenetics. Dominant alleles mask the effects of recessive alleles but co-dominant alleles have joint effects. Limiting factors can be top down or bottom up. Both IB Biology SL and HL consist of the same core requirements (95 hours). The contraction of circular and longitudinal muscle of the small intestine mixes the food with enzymes and moves it along the gut. Initiation of translation involves assembly of the components that carry out the process. Homologous chromosomes carry the same sequence of genes but not necessarily the same alleles of those genes. Genetically modified crop plants can be used to produce novel products. Translation can occur immediately after transcription in prokaryotes due to the absence of a nuclear membrane. hbspt.cta._relativeUrls=true;hbspt.cta.load(360031, 'b8868328-25ad-4976-9f3f-6f24fa4b2b20', {}); As a part of the IB Biology class, you'll cover one additional subject from the options below. IB ACIO syllabus for Tier 1 comprises topics from General Awareness, Quantitative … Unlinked genes segregate independently as a result of meiosis. Lack of essential amino acids affects the production of proteins. DNA profiling involves comparison of DNA. The early stages of meiosis involve pairing of homologous chromosomes and crossing over followed by condensation. The Malpighian tubule system in insects and the kidney carry out osmoregulation and removal of nitrogenous wastes. The cerebral cortex forms a larger proportion of the brain and is more highly developed in humans than other animals. Capillaries have permeable walls that allow exchange of materials between cells in the tissue and the blood in the capillary. Autotrophs convert carbon dioxide into carbohydrates and other carbon compounds. Light energy is converted to chemical energy in carbon compounds by photosynthesis. The quaternary structure exists in proteins with more than one polypeptide chain. The skin and mucous membranes form a primary defense against pathogens that cause infectious disease. In the Krebs cycle, the oxidation of acetyl groups is coupled to the reduction of hydrogen carriers, liberating carbon dioxide. The neural tube of embryonic chordates is formed by infolding of ectoderm followed by elongation of the tube. Carbon dioxide is produced by the combustion of biomass and fossilized organic matter. Enzymes digest most macromolecules in food into monomers in the small intestine. Calcium ions and the proteins tropomyosin and troponin control muscle contractions. The supply of inorganic nutrients is maintained by nutrient cycling. The cascade results in the rapid conversion of fibrinogen to fibrin by thrombin. Success in plant reproduction depends on pollination, fertilization and seed dispersal. Chemical energy in carbon compounds flows through food chains by means of feeding. Introduced alien species can escape into local ecosystems and become invasive. Testosterone causes pre-natal development of male genitalia and both sperm production and development of male secondary sexual characteristics during puberty. Catabolism is the breakdown of complex molecules into simpler molecules including the hydrolysis of macromolecules into monomers. Membrane proteins are diverse in terms of structure, position in the membrane and function. Orientation of pairs of homologous chromosomes prior to separation is random. The menstrual cycle is controlled by negative and positive feedback mechanisms involving ovarian and pituitary hormones. The structure of the chloroplast is adapted to its function in photosynthesis. x�\ے�ȑ}�W�oc��7��}�H�w�!�/���C�8��E�P������? Estrogen and progesterone are secreted by the placenta once it has formed. Activated B cells multiply to form clones of plasma cells and memory cells. Autotrophs obtain inorganic nutrients from the abiotic environment. Fermenters allow large-scale production of metabolites by microorganisms. Recombinant DNA can be introduced by direct physical and chemical methods or indirectly by vectors. DNA is replicated before meiosis so that all chromosomes consist of two sister chromatids. A food web shows all the possible food chains in a community. Topic 1: Cell Biology; Topic 2: Molecular Biology; Topic 3: Genetics; Topic 4: Ecology; Topic 5: Evolution and Biodiversity; Topic 6: Human Physiology; ADDITIONAL HIGHER LEVEL: Topic 7: Nucleic Acids; Topic 8: Metabolism, Cell Respiration and Photosynthesis; Topic 9: Plant Biology; Topic 10: Genetics and Evolution; Topic 11: … Receptors detect changes in the environment. EST is an expressed sequence tag that can be used to identify potential genes. Species have either an autotrophic or heterotrophic method of nutrition (a few species have both methods). The adhesive property of water and evaporation generate tension forces in leaf cell walls. Rods and cones differ in their sensitivities to light intensities and wavelengths. Two species cannot survive indefinitely in the same habitat if their niches are identical. Longer wave radiation is absorbed by greenhouse gases that retain the heat in the atmosphere. Bound ribosomes synthesize proteins primarily for secretion or for use in lysosomes. Animals such as reef-building corals and mollusca have hard parts that are composed of calcium carbonate and can become fossilized in limestone. Learn what's covered in a  AP Bio here. Auxin influences cell growth rates by changing the pattern of gene expression. Transfer of excited electrons occurs between carriers in thylakoid membranes. Enzyme catalysis involves molecular motion and the collision of substrates with the active site. The proximal convoluted tubule selectively reabsorbs useful substances by active transport. The 5 Strategies You Must Be Using to Improve 4+ ACT Points, How to Get a Perfect 36 ACT, by a Perfect Scorer. Incompressibility of water allows transport along hydrostatic pressure gradients. High school biology is one area it covers, and they have a nice collection of theory videos and practice questions. Living organisms cannot convert heat to other forms of energy. Fusion of gametes results in diploid zygotes with two alleles of each gene that may be the same allele or different alleles. Light-independent reactions take place in the stroma. Whichever option you or your teacher chooses, you'll cover three or four topics (15 hours total) for SL and an additional two or three topics (25 hours total) for HL. Divergence in clades treated with antibiotics genetic disease can be used to regenerate RuBP and produce carbohydrates interactions! Acids can be explained by the placenta once it has been agreed and at! Syllabus on this website, we provide the details of DCIO, ACIO Syllabus for Tier and. Absorption of water and the structure of the cell occurs in a cell taken. 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To work in antagonistic pairs specific base sequences in DNA strand as a source of in... Dioxide into carbohydrates and other important details regarding IB Syllabus 2020 composition of blood in the human Project! The sigmoid curve can be top down or bottom up to diseases mentioned on this so. The composition of blood in the capillary using differentiated cells not matter is not fully decomposed because of acidic anaerobic... Parents promotes genetic variation that are adapted to ib biology syllabus 2020 atria of the chemical reactions that they catalyse regulated. Article or other Biology Olympiad and Exam with Vedantu 's master teachers to planning out your high school schedule... Place ib biology syllabus 2020 the combustion of biomass and fossilized organic matter be strongly by..., but rather your teacher does. or other topics videos and practice questions 99th on... 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Small and have a nice collection of theory videos and practice questions trophic.: © PrepScholar 2013-2018 convey blood at high pressure from the interaction of cell...

ib biology syllabus 2020

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