BIO 1230 Class Notes January 18-24
BIO 1230 Class Notes January 18-24 BIO 123
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This 2 page Class Notes was uploaded by Abby Joannes on Tuesday January 19, 2016. The Class Notes belongs to BIO 123 at Clemson University taught by Professor Minor in Spring 2016. Since its upload, it has received 19 views. For similar materials see Introduction to Human Biology in Biology at Clemson University.
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Date Created: 01/19/16
BIO 1230 Class Notes January 18-24 January 20, 2016 Understand the Organelles in the cell of a human body & what each of their function is • Lysosome: digests substances brought into the cell and destroys old parts of cell • Nucleus: contains DNA and controls cellular activity • Nucleolus: produces components of ribosomes (RNA and proteins) • Ribosome: site where protein synthesis begins • Rough Endoplasmic Reticulum: studded with ribosomes and produces membrane • Golgi complex: sorts, modifies, and packages proteins • Microfilament: plays a role in muscle contraction and cell division • Plasma membrane: regulates movement of materials into and out of cell • Vacuole: store & release various substances in the cell membrane • Centrioles: may function in cell division • Smooth Endoplasmic Reticulum: detoxifies drugs and produces membrane • Microtubule: maintains cell shape and forms tracks on which vesicles move • Mitochondrion: provides cell with energy through the breakdown of glucose during cellular respiration • Cytoplasm: material surrounding the nucleus January 22, 2016 Happy snow day J To help with the homework assignment… Seven characteristics of living things: • they contain nucleic acids, proteins, carbohydrates, and lipids • they are composed of cells • they grow and reproduce • they use energy and raw materials • they respond to their environment • they maintain homeostasis • they evolve and have adaptive traits Classification of Humans Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo Species: sapiens Prokaryotic Cells v. Eukaryotic Cells Prokaryotic cells are found in Domain Bacteria or Domain Archaea Eukaryotic cells are found in Domain Eukarya, which contains Kingdoms Protists, Fungi, Plants, & Animals Types of Bonds Hydrogen bonds: weakest bond, attraction between a hydrogen atom with a slight positive charge and another atom (often O) Ionic: stronger bond, transfer of electrons between atoms Covalent: sharing of electrons. Types of Biomolecules Carbohydrates: Monosaccharides Lipids: fatty acids Proteins: amino acids Nucleic Acids: nucleotides Diffusion Simple diffusion: random movement of a substance from high concentration to low concentration Facilitated diffusion: movement of a substance from a region of high concentration to low concentration with the aid of a membrane protein. Osmosis: diffusion in which water moves across the membrane
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