Midterm Study Guide Washington Township High School Honors Biology Chapters 2 – Chapter 5 Chapter 2: The Chemical Basis of Life Vocabulary Words: acid, adhesion, aqueous solution, atom, atomic mass, atomic number, base, buffer, chemical bond, chemical reaction, cohesion, compound, covalent bond, double bond, electron, electron shell, electronegativity, element, heat, hydrogen bond, ion, ionic bond, isotope, mass number, matter, molecule, neutron, nonpolar covalent bond, nucleus, pH scale, polar covalent bond, polar molecule, product, proton, radioactive isotope, reactant, salt, solute, solution, solvent, surface tension, temperature, trace element. Elements, Atoms and Molecules Define matter, an element and a trace element Define a compound and explain how compounds in living organisms are different from compounds in non-biological materials Describe the structure of an atom Define the atomic number and mass number of an atom Define an isotope and explain what makes some isotopes radioactive Explain how the electron configuration of an atom influences its chemical behavior Distinguish between ionic bonds, nonpolar bonds, nonpolar covalent bonds, polar covalent bonds and hydrogen bonds, noting their relative strengths and how and where they form Water Life-Supporting Properties Describe the special properties of water that make it vital to living systems Explain the properties related to hydrogen bonding Define and distinguish between cohesion and surface tension Define a solute, a solvent and a solution Explain how acids and bases directly or indirectly affect the hydrogen ion concentration of a solution Explain the basis of the pH scale Explain how buffers function Chemical Reactions Explain the significance of chemical reactions Identify reactants and products in a chemical reaction Midterm Study Guide Honors Biology Washington Township High School Chapters 2 – Chapter 5 Chapter 3: Molecules of Cells Vocabulary Words: alpha helix, amine, amino acid, amino group, anabolic steroid, carbohydrate, carbon skeleton, carbonyl group, carboxyl group, carboxlyic acid, cellulose, chitin, cholesterol, dehydration reaction, denaturation, deoxyribonucleic acid (DNA), disaccharide, double helix, enzyme, fat, functional group, gene, glycogen, hydrocarbon, hydrolysis, hydrophilic, hydrophobic, hydroxyl group, isomers, lipids, macromolecule, methyl group, monomer, monosaccharide, nucleic acid, nucleotide, organic compound, peptide bond, phosphate group, phospholipid, pleated sheet, polymer, polypeptide, polysaccharide, primary structure, protein, quarternary structure, ribonucleic acid (RNA), saturated, secondary structure, starch, steroid, tertiary structure, unsaturated Organic and Inorganic Compounds Define and give examples of each. What are the elements associated with organic compounds? List the four main classes of large organic biological molecules. Functional Groups What are functional groups of organic compounds and what is their importance? List the 6 most common functional groups and draw their structures. Carbon Molecules Define and give examples of monomers, polymers, and macromolecules Illustrate a dehydration and hydrolysis reaction Define a dehydration reaction Define a hydrolysis reaction Carbohydrates Give examples of simple carbohydrates (fruits and sugars) Give examples of complex carbohydrates (starches-potatoes) Describe examples of monosaccharides (monomer) Know the molecular formula of a monosaccharide (C6H12O6) or 1:2:1 Give examples of disaccharides Explain how a disaccharide is formed and broken down Give an example of polysaccharides Explain how a polysaccharide is formed and broken down Midterm Study Guide Honors Biology Washington Township High School Chapters 2 – Chapter 5 Proteins Give examples of proteins What types of foods do we get proteins from? Describe the monomer of a protein Recognize the molecular structure of an amino acid How are dipeptides formed and broken down? How are polypeptides formed and broken down? Be able to describe protein structure, primary, secondary, tertiary and quaternary Lipids Give an example of lipids What types of food do we get lipids from? Recognize the molecular structure of a fatty acid/lipid. Identify the molecular structure of saturated and unsaturated fatty acids What are phospholipids? Recognize the molecular structure of a phospholipid. What are triglycerides? Recognize the molecular structure of a triglyceride How are phospholipids different from triglycerides? What is a hormone? Nucleic Acids Give examples of nucleic acids What type of foods do we get nucleic acids from? Recognize the molecular structure of a nucleic acid Identify a nucleotide (monomer) What are the three components of a nucleotide? DNA RNA What are the names of the two men that discovered the structure of the DNA molecule? Midterm Study Guide Washington Township High School Honors Biology Chapters 2 – Chapter 5 Chapter 4: A Tour of the Cell Vocabulary Words: basal body, cell theory, cell wall, cellular metabolism, central vacuole, centriole, chloroplast, chromatin, chromosome, cilia, crista, (plural, cristae), cytoplasm, cytoskeleton, electron microscope (EM), endomembrane system, endoplasmic reticulum (ER),, endosymbiosis, eukaryotic cell, extracellular matrix (ECM), flagellum (plural, flagella), glycoprotein, Golgi apparatus, granum (plural, grana), integrins, intermediate filament, intermembrane space, light microscope (LM), lysosome, microfilament, micrograph, microtubule, mitochondrial matrix, mitochondrion, (plural,mitochondria), nuclear envelope, nucleoid, nucleolus, nucleus (plural, nuclei), organelle, peroxisome, plasma membrane, plasmodesma (plural, plasmodesmata), prokaryotic cell, ribosome, rough endoplasmic, reticulum, scanning electron, microscope (SEM), smooth endoplasmic, reticulum, stroma, thylakoid, transmission electron, microscope (TEM), transport vesicle, vacuole, vesicle Microscopes Compare the designs of and the images produced by a light microscope, a scanning electron microscope, and a transmission electron microscope Distinguish between magnification and resolving power Two scientists involved with the discovery of cells Robert Hooke Anton van Leeuwenhoek Cell Theory Define cell theory and briefly describe the discoveries that lead to its development Cell Diversity Explain why there are upper and lower limits to cell size Explain the surface area to volume ratio. Why are cells small? Types of Cells Distinguish between the structures of prokaryotic and eukaryotic cells. o Define & provide examples of each Midterm Study Guide Honors Biology Washington Township High School Chapters 2 – Chapter 5 Types of Cells What is endosymbiosis? Describe the evidence that suggests that mitochondria and chloroplasts evolved by endosymbiosis Explain why compartmentalization is important in eukaryotic cells. Compare the structures of plant and animal cells. Organelles Cell Structures involved in Manufacturing and Breakdown o Describe the structure and functions of the nucleus, endomembrane system, smooth and rough endoplasmic reticulum, golgi apparatus, lysosomes and vacuoles Energy-Converting Organelles o Compare the structures and functions of mitochondria and chloroplasts o What organs or cells would have a lot of mitochondria? o What are cristae? Explain why cristae are important. o How is ATP related to the mitochondria and chloroplast? Midterm Study Guide Honors Biology Washington Township High School Chapters 2 – Chapter 5 Internal and External Support: The Cytoskeleton and Cell Surfaces o Cell Membrane Describe the hydrophobic and hydrophilic components of the plasma membrane How are the phospholipids arranged? Why? What significant roles do proteins play in membrane? o Cytoskeleton Compare the structures and functions of microfilaments, intermediate filaments, and microtubules How are microfilaments associated with cell motility? o Cilia and Flagella Relate the structure of cilia and flagella to their functions What types of cells contain cilia and flagella? o Cell Surfaces Compare the structures and functions of tight junctions, anchoring junctions, and gap junctions o Cell Wall Relate the structure of plant cell walls to its function Midterm Study Guide Honors Biology Washington Township High School Chapters 2 – Chapter 5 Chapter 5: The Working Cell Vocabulary Words: active site, active transport, adenosine triphosphate (ATP), aquaporin, cellular respiration, chemical energy, coenzyme, cofactor, competitive inhibitor, concentration gradient, diffusion, endergonic reaction, endocytosis, energy coupling, energy of activation (EA), energy, entropy, enzyme, exergonic reaction, exocytosis, facilitated diffusion, feedback inhibition, first law of thermodynamics, fluid mosaic, heat, hypertonic solution, hypotonic solution, induced fit, isotonic solution, kinetic energy, metabolic pathway, metabolism, noncompetitive inhibitor, osmoregulation, osmosis, passive transport, phagocytosis, phosphorylation, pinocytosis, potential energy, receptor-mediated endocytosis, second law of thermodynamics, selective permeability, substrate, thermodynamics, tonicity Membrane Structure and Function Describe the fluid mosaic structure of cell membranes Describe the diverse functions of membrane proteins Relate the structure of phospholipid molecules to the structure and properties of cell membranes Define diffusion and describe the process of passive transport What is osmosis? Explain how osmosis can be defined as the diffusion of water across a membrane What is the difference between hypertonic, hypotonic and isotonic solutions Explain how animal and plant cells change when placed into hypertonic and hypotonic solutions What is facilitated diffusion? Explain the role of proteins in this process What is the function of aquaporins in the cell membrane? What is the difference between exocytosis, endocytosis, phagocytosis, pinocytosis and receptor-mediated endocytosis? Midterm Study Guide Honors Biology Washington Township High School Chapters 2 – Chapter 5 Energy and the Cell Define and compare kinetic energy, potential energy, chemical energy and heat What are the first and second laws of thermodynamic? Explain how these laws relate to energy use in the cell What is the difference between endergonic and exergonic reactions? Describe the three main types of cellular work Explain the importance of ATP in the cell How Enzymes Function Explain how enzymes speed up chemical reactions Describe the structure of an enzyme-substrate interaction How does the cellular environment affect enzyme activity? What are competitive and non-competitive inhibitors? How do they alter an enzyme’s activity? Describe the process of feedback inhibition