5 Written questions
5 Matching questions
- Endoplasmic Reticulum (Eukaryotic cells)
- functional groups
- Endomembrane system (Eukaryotic cells)
- Golgi Apparatus (Eukaryotic cells)
- a are parts of a molecule that participate in a chemical reaction
- b receives packages such as transport vesicles on one side, modifies products, then repackages in new transport vesicles for other sites
- c small nitrogen containing molecules, amino acids, are joined to form dipeptides which are joined to form polypeptides which may be joined to other polypeptides to from proteins. Proteins have unique 3 dimensional shapes or configurations that enable them to function as enzymes to catalyze reactions and function in other active ways.
- d a system of interconnected membranes that run throughout the cell for synthesis, storage, and transport of products
- e a biosynthetic factory, two forms, smooth and rough - Rough - studded with ribosomes, small RNA structures where proteins are manufactured, Smooth - lack ribosomes, wall contains enzymes that make phospholipids, steroids, fatty acids, detoxify poisons, and store minerals used for muscle contraction -________ packages products in tiny sacs called transport vesicles that bud-off
5 Multiple choice questions
- reads the genes and helps make proteins
- lack a membrane enclosed nucleus
Nucleoid region, Ribosomes, Plasma membrane, Cell wall, Capsule, Pili, Flagella
- number of protons
- = glycerol + fatty acid.
are another source of energy but some may contribute to heart disease. Most plant __ are unsaturated oils and most animal __ are saturated.
- these are non-polar, hydrocarbons, which are composed of fat molecules. Fat = glycerol + fatty acid. _______ are 1) important components of cell membranes (phospho_______), 2) molecules (steroids) that regulate cell function, and 3) molecules (waxes) that protect other cells
5 True/False questions
Covalent bonds → strong bonds where atoms share electrons - two or more atoms held together by a covalent bond are called a molecule
Levels of Organization → Primary structure = sequence of amino acids
Secondary structure = coiling to form an alpha helix or folding to form a pleated sheet - hydrogen bonding may be involved
Tertiary structure - Overall, 3 - D shape, usually described as fibrous or globular
Quaternary structure - many proteins have multiple peptide chains or subunits - how these fit together is called quaternary structure
Common Features of life → single sugar units such as glucose (= a monosaccharide) are joined to form disaccharides such as maltose which can be joined to other sugars to form polysaccharides such as starch (plants) or glycogen (animals), cellulose is a large polysaccharide made by plants that is not easily broken down, chitin is a polysaccharide used by insects to build their exoskeleton - ________ are important sources of energy, and for building structures in plants and animals
Electrons → Combine to form compounds. Are formed of atoms.
Mitochondria (Eukaryotic cells) → found in plants and animals, chemical energy in food such as sugars is converted to an energy source useable in cells called ATP, ___________ have a membrane, an intermembrane space and matrix. Reactions take place in the matrix