Florence Tesha Biology T-Test Lab Ms Robson 2012-03-01 DESIGN LAB Research Question: How does the amount of water present 5m from the ocean and 20m away from the ocean affect the circumference of the coconut trees ten metres from the ground? Aim: To find out how the amount of water available 5m from the ocean and 20m away from the ocean affects the circumference of coconut trees ten metres from the ground. Hypothesis: ➢ The coconut trees found 5m from the ocean receives more amount
Premium Ruler Orders of magnitude Measurement
2.3.1 Organelle Structure and function nucleus enclosed in double membrane with pores contains chromosomes with genes made of DNA to control protein synthesis ribosomes made of RNA and protein free in cytoplasm or attached to RER site of protein synthesis rough endoplasmic reticulum interconnected sacs with ribosomes attached transport proteins to other parts of cell smooth endoplasmic reticulum synthesis of lipids and steroids mitochondria double
Premium Cell DNA Carbon dioxide
Microevolutionary Process Notes 1) Natural selection works on individuals 2) Individuals do not evolve‚ populations do Insecticide application didn’t result in insecticide resistance: some insects carry trait of resistance in their genes Processes in Microevolution -Mutation -Non-random mating -Genetic Drift -Natural Selection -Gene Flow Hardy-Weinburg Theorem: Frequencies of alleles and genotypes are preserved from generation to generation in populations that are not evolving -p2 + 2pq
Premium Evolution Genetics Mutation
9.2 - Maintaining a Balance: 1. Most organisms are active within a limited temperature range: * Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity in substrates: * Role of enzymes in metabolism: * Metabolism refers to all the chemical reactions occurring in organisms * Enzymes are biological catalysts which increase the rate of chemical reactions * Without enzymes‚ metabolism
Premium Blood Carbon dioxide
then the embryo develops testes and produces testosterone. Female Reproductive system • Female baby develops if tdf is not present. • Tdf – a gene located on Y chromosome; if girl‚ then two X chromosomes‚ hence no Tdf. • Female hormones: progesterone and estrogen ( both secreted by mother’s ovaries and placenta which allow female genetilia to develop. Parts of the female reproductive system: Oviduct/Fallopian tube – site of fertilization Ovary – produce and release ova
Premium Meiosis Reproductive system Pregnancy
Transcription and Translation Notes for IB Diploma Year 1 DNA is a huge information database that carries the complete set of instructions for making all the proteins a cell will ever need! Although there are only four different bases in DNA (A‚ C‚ G and T)‚ the order in which the bases occur determines the information to make a protein‚ just like the 26 letters of the alphabet combine to form words and sentences: Compare: RAT - TAR - ART - same 3 letters; completely different meanings. And
Premium RNA DNA Protein
Three Notes Political Culture and Political Socialization * Each nation has its own political norms that influence how people think about and react to politics. * American’s strong feelings of patriotism‚ the Japanese deference to political elites‚ and the French proclivity for protest all illustrate how cultural norms shape political. * When a new regime forms‚ a supportive public can help develop the new system‚ while the absence of public support may weaken the new system. Mapping
Premium Management Strategic management Leadership
Aquatic Adaptation Aquatic plants - also called hydrophytic plants orhydrophytes - are plants that have adapted to living in aquatic environments. -One of the main problems facing submerged aquatic plants is their inability to obtain oxygen. Unlike terrestrial plants‚ these plants cannot obtain the vital gas through their stomata because they are submerged in water. -Therefore‚ the stems‚ roots‚ and leaves of submerged aquatic plants posses aerenchyma cells‚ which supply oxygen to the rest of
Premium Blood Heart
Unit 2 Bullet Point Handouts Tests for closely-related species (Compare) DNA; Sequence of bases/nucleotides; DNA hybridisation; Separate DNA strands / break hydrogen bonds; Mix DNA/strands (of different species); Temperature/heat required to separate (hybrid) strands indicates relationship; Compare same/named protein; Sequence of amino acids /primary structure; Immunological evidence – not a mark Inject (seahorse) protein/serum into animal; (Obtain) antibodies/serum; Add protein/serum/plasma
Free DNA
Gene Expression. Totipotent Cells are undifferentiated cells‚ such as embryonic stem cells‚ that are not yet defined in their function. In animals‚ stem cells are totipotent. Plants have far more types of totipotent cells (Think of how you can make cuttings of plants‚ and grow an entirely new plant‚ given the right conditions?) Cells loose totipotency‚ as‚ with age‚ different genes are swtiched on/off. When certain genes are switched of‚ they are not translated to produce polypeptides‚ meaning
Free DNA Protein Adenosine triphosphate