BIO201H5 Lecture Notes - Lecture 1: Cell Membrane, Entertainment Uk, Photosynthesis
Document Summary
Biology is: scientific study of life/all living organisms (bacteria, plants, animals, uses scientific method and hypothesis testing. Properties of life: organisms acquire materials and energy, chemical reactions (ex. Breathing: life requires energy, all living organisms must obtain food for energy (ex. Bacteria: oldest and most abundant organisms on earth, everywhere on earth (sea, underground, clouds, in your body) Important to daily functions: decomposes organic matter, produce oxygen, degrade pollutants (ex. Humans: mobile, communicate, can"t make own food, must eat other organisms to survive, herbivore, omnivore, or carnivores, 96% of animals are invertebrates, many produce compounds found nowhere else in nature (ex. Jellyfish; fluorescents: fungi, don"t photosynthesize, absorb nutrients from other organisms, spore reproduction, most are decomposers, nutritional partners of numerous plants, commercial value. In food: medicine (antibiotics, flavouring, alcohol (yeast, plants (ex. That do not fit into animals, fungi, or plants: unicellular or multicellular, simplest of euk, grouped according to lifestyle, oldest euk.
