Biology Test 1: Practice Questions

Biology Practice Test 1 _____ is the smallest particle of matter that still retains the properties of an element Atom The atomic number of an atom equals The number of protons ______ are atoms with the same number of protons as other varieties with a different number of neutrons Isotopes Which bond types are found in a bottle of protein water? A. Hydrogen Bonds B. Covalent C.Cohesion D. All of the above E. None of the above D. All of the above The intermolecular attraction between like molecules defines what? Cohesion Which of the following is a functional group A. Amino B. -COOH C.Carboxyl D. All of the above E. both A and B D. All of the above Monomers are linked to form polymers through what type of reaction? Dehydration The simplest form of carbohydrates are Monosaccarides Glucose and Fructose are Carbohydrates, isomers, and sugars Which of the following contain Amino Acids A. Glycogen B.Cellulose C.Galactose D. Both A and C E. None of the above None of the above Lipids are hydrophyllic because their structure is This is a false statement _____ are lipids whose main function is energy storage Triglycerides and fats ____ are lipids which regulate chemical reactions A. Enzymes B. Lactase molecules C.Amino Acids D.None of the Above E. Both A and B None of the above Amino Acids Contain An amino Group, a carboxyl group, and an R group Polypeptides are composed of A. Phosphate B. Nitrogenous Base C.Triglycerides D. None of the above E. Both A and b None of the above What is true of Prokaryotes They are the oldest life forms and they are the most widespread organisms Prokaryote Domains include Archea and Bacteria Monomers of nucleic acids are composed of sugar, phosphate and nitrogenous base Rough Endoplasmic reticulum functions include Polypeptide Synthesis The Golgi Apparatus does what to cell products Sorts ships and finishes White blood cells that have a very high concentration of lysosomes include macrophages Vacuole functions include 1/4 waste product containment, maintain turgor, and enable cell shape to change _____ release energy and yield products that contain less potential energy than their reactants Excergonic reactions Which of the following contains peptide bonds Galactase Which of the following move solutes with a concentration gradient Passive transport and facilitated diffusion Which of the following refer to the second stage of cellular respiration citric acid cycle, tricarboxylic cycle which of the following take place in the cytoplasm around the mitochondria Glycolysis _____ produce their own food and sustain themselves without eating other organisms Autotrophs, Chemoautoyrophs, Photoautotrophs The stages of photosynthesis may be termed to include Light reactions, and dark stage Each photosytem contains A reaction center, light harvesting complexes Which anaerobic process listed below is used for energy production in humans? Lactic Acid Fermentation Enzyme inhibitors may work by what ways Changing bonding site shape and blocking binding site The primary types of materials crossing the plasma membrane include waste, nutritional substances, chemical information carrying substances Negative Feedback loops may be used for what purposes control the action being produced, save resources, Regulate cellular metabolism Ibuprofen has which of the following actions? Analgesic, Anti-pyretic, and Anti-inflammatory What is considered to be Arkansas primary legal drug of concern currently? Alcohol Prolonged Generalized Vasoconstriction commonly results in Hypertension and high blood pressure Which of the following is true regarding heirloom tomatoes? They are not hybrids Which of the following biological substances do not show the monomer-polymer concept? A. Galactose B. Maltase C. Glucocorticoids D.None of the above E. A and B C. Glucocorticoids A population includes which of the following a localized group of individuals of one species T/F venoumous snakes outnumber all other venomous vertebrates False The ______ is the definitive organelle of a Eukaryotic cell Nucleus We distinguish forms of life based on which of the following A. Reproduction B. Growth and development C. Regulation of internal conditions D.Energy use E.All of the above D. All of the above The basic ways we learn about nature include Discovery science and hypothesis science Which of the following explains nature Discovery science In which of the following do we use inductive reasoning a. Preposterous science b. Hypothesis science C. Science fiction D. None of the above E. A and B None of the above A giant star does what as it becomes a supernova Collapses,Explodes and compacts densley 2/4 The "Big Bang" is primarily based on what type of science learning Hypothesis science _____ is the explosive death of a massive star Supernova The Earths layers names include A. Magma B. Ice cap C. Primal Cap D. None of the above D. None of the above What suffix means that it is a protein ASE Lipids are hydrophobic because their structure is Nonpolar Acetaminophen has which of the following actions A. Analgesic B. Antipyretic C. Antinflammatory D. And C E. All of the above D. A and B Regarding Biosynthesis A. Takes place within living organisms B. Genereally catalyzed by enzymes C. Uses energy D. A and B E. All of the above E all of the above Emzyme activity may be blocked by Competitive and Noncompetitive inhibitors Currently we are thought to have how many planets in our solar system 8 Common sets of features shared by living organisms may include Reproduction Examples of a trace element added to the human diet for beneficial effects are Iodine and Fluoride ____ is a polysaccharide found in plant cell walls Cellulose Regarding dehydration reactions A. They link monomers to make polymers B. They absorb water C. They give off water D. A and B E. A and C E. A and C Lipids are connected by Nonpolar covalent bonds Regarding chemical reaction They can be endergonic or exergonic Regarding Glycolosis A. Breaks down glucose into pyruvate B. Occurs in the cytoplasm C. Produces some ATP D. All of the above E. A and B D. All of the above What part of the thylakoid membrane specifically captures solar power Photosystems T/F Many enzyme inhibitors irreversibly alter metabolic pathways True What is the term for the scarring of liver tissue cirrhosis Enzyme inhibitors A. alter enzyme functions B. can take the place of a substrate in the active site C. Can change the shape of the enzyme D. All of the above D. all of the above T/F Recent research shows that adding sugar molecules to particular enzyme could create a superbug True 3/4 Fermentation is anaerobic and an alternative to cellular respiration The burn you feel in your muscles when pushing yourself while working out is due to Your muscles shifting over to fermentation T/F New research shows that muscle soreness is due to lactic acid False Which of these is not a primary type of macromolecule A. Protien B. Dna C. Fats D. Carbs E. None of the above B. Dna _______ produces chemical compounds from simpler reagents biosynthesis T/F Exocytosis is when the membrane folds inward, enclosing material from the outsides False Which of these allows molecules to pass through the membrane without using energy Facilitated and passive transport T/F A membrane is made up of a phospholipid bilayer composed of a hydrophobic head and two hydrophobic tails False ___ is the changing of energy from one form to another transformation and transmutation Which of these is not a main function of the central Vacuole A. providing cellular energy B. containing waste products C. maintaining cell pH D. maintaining internal pressure E. changing cell shape A. providing cellular energy Macrophages are examples of Lysosomes 4/4