heterotrophs‚ secrete enzymes which digest food outside the body‚ the broken down food is then absorbed by hyphae * 3 types of fungi * decomposer fungi‚ absorb nutrients from nonliving sources * parasitic fungi: absorb nutrients form living sources * mutualistic fungi: both fungus and host organism benefit from relationship (example is mycorrhizal fungus and plant roots) * Mycelium is made up of threads called hyphae. * hyphae may have septate ( cross walls
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stimulated to grow. 2. As follicles grow endometriym thickens. 3. The most developed follicle breaks open and releases an egg into the fallopian tube. 4. Luteal Phase: The other follicles degenerate and the main one becomes a corpus luteum. 5. If fertilization does not occur‚ corpus luteum breaks down and thickening of endometrium breaks too and sheds during menstruation. * 36 day period – one complete menstrual Hormones in the female reproductive system: ( Anterior Pituitary hormones:
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phosphoryl are released‚ releasing energy for bonding two adjacent nucleotides The mRNA produced is complementary to the nucleotide base sequence on the template strand of DNA and therefore is a copy of the base sequence on the coding strand of DNA 5. The mRNA is released from the DNA and passes out of the nucleus through a pore in the nuclear envelope to a ribosome (d) describe‚ with the aid of diagrams‚ how the sequence of nucleotides within a gene is used to construct a polypeptide‚ including
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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
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ECOSYSTEMS BIODIVERSITY- the variety of life on Earth and the essential interdependence of all living things. Three components of biodiversity; 1. Genetic- variety within species 2. Species- all different species 3. Ecosystems- can support diversity Advantages of biodiversity Oxygen Food Clean water Medicine Aesthetics Intrinsic vs Utilitarian value Intrinsic value is something that has value in and of itself Utilitarian value is the value something has‚ as a means
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Of Mice and Men - Analysis of Slim From the moment Slim is introduced you can see he is different. He is compared to royalty ’He moved with a majesty only achieved by royalty and master craftsmen. ’ ... ’Prince of the ranch ’. This shows Slim is the leader on the ranch. We can see Slim is far from ordinary‚ he has a respect unknown to the others. ’His authority was so great his word was taken on any subject ’‚ Slim acts as a judge in many situations‚ he decides that it is right to shoot Candy
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(exact) same Usage of logarithmic scale Large range of results so logarithmic scale needed to plot them. Cellulose structure: function relationship Long straight chains of glucose molecules (with a 1-4 linkage) Held together by hydrogen bonds Can form microfibrils Importance of courtship behaviour Recognition of same species; Stimulates release of gametes; Recognition of mate/opposite gender; Indication of sexual maturity/fertility; Prediction of something using a graph Use line of best
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AP Biology notes: Chapter 2- The Chemical Context of Life 1. Overview * The bombardier beetle fights the ants that plague it by using chemistry. * The natural systems and environment that organisms live in involves chemistry and physics. * Biology is not the only category of science. There is also chemistry‚ physics‚ and engineering. * Organization of life is separated into a hierarchy of structural levels. 2. Elements and Compounds * Matter- anything that takes up
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1. What are confounding variables? 2. What are experimental controls? 3. What is the difference between a scientific fact‚ law‚ and theory? 4. What are the ’norms’ of science? 5. What are the differences between the four common types of organic molecules? 6. Why do cells make ATP? 7. How can you distinguish between prokaryotic and eukaryotic cells‚ and between haploid and diploid cells? What types of cells fall into these categories? 8. What is the function of cellular respiration? Where
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Unit1: Cell functions/ Cell division Cells Cell theory: -All living things are composed of one or more cells. -The cell is the smallest entity that retains the properties of life. -New cells arise only from cell that already exists. Structure of the cell: The outer boundary (plasma membrane) similar to a city wall It is constructed with molecules called lipids (fat and oils) The cell membrane is composed of: -Proteins and Lipids -FUNCTION: to allow molecules into and out of the
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