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50 Cards in this Set
- Front
- Back
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The four main bond types identified in chemistry are the following: Sulfur, Oxygen, Hydrogen and Carbon. a. True b. False |
b. Fasle |
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A(n) ____________ is a monomer of protein and __________ are bonded together via peptide bonds. a. amino acid(s) b. monosaccharide c. fatty acid(s) d. nucleotides(s) |
a. Amino acids |
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Prokaryotes have no nucleus, organelles or genome a. true b. false |
b. False |
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Which of the following is the main function of a lysosome? a. cell respiration b. store plant waste c. contain digestive enzymes d. both A and B are correct e. All of these answer selections are correct |
c. Contain digestive enzymes |
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Pure Water which traditionally identified as having a p(H) of 7.0, is both an acid and a base a. True b. False |
b. False |
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A proton has a Neutral charge a. true b. false |
b. False |
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Glucose is a monomer of a Lipid a. true b. false |
b. False |
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Two electrons "fit" into the inner-most(closest to the nucleus) shell of an atom. a. true b. false |
a. True |
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A rough endoplasmic reticulum (RER) with ribosomes on it,in a eukaryotic cell, is used in protein synthesis a. true b. false |
a. true |
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Nucleoli (forming ribosome sub-units) are found in a prokaryotic cells nucleus a. true b. false |
b. false |
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Plant cells have cell walls of cellulose a. true b. false |
a. true |
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In general, in nature the atomic number of an element cannot be changed and is equal to the number of protons a. true b. false |
a. true |
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Which of the following is not identified as one of the classes/forms/types of the four macromolecules of life? a. Proteins b. Nucleotides c. Carbohydrates d. Lipids e. Peptides |
e. Peptides |
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What is the (in general) order from the strength of bonds from strongest to weakest? a. hydrogen, ionic, covalent b. ionic, hydrogen, covalent c. covalent, ionic, hydrogen d. covalent, hydrogen, ionic |
c. Covalent, Ionic, Hydrogen |
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The hydrolysis of a ploymer is done by adding a water molecule to a ploymer (often with an enzyme), which then releases a monomer. a. True b. False |
a. True |
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All of the proteins on Earth are composed of only 20 different amino acids. a. True b. False |
a. True |
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Which of the following is the most important structure of protein structure formation, involving the correct sequence of amino acids, via DNA a. primary b. secondary c. tertiary d. quaternary e. none of the preceding are correct |
a. Primary |
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In a plant cell lysosomes break down a cell's food and wastes. a. true b. false |
b. False |
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In a eukaryotic cell, a nucleus ________ a. is the genetic "control" center b. finishes, sorts, and ships cell products c. removes calcium ions via active transportation d. digest the cell's food and wastes e. forms membranes, proteins, and jewlery |
a. is the genetic "control" center |
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The membrane folds inside of a nucleus: the inner membrane, that helps increase the organelle's interior surface area for cellular respiration is identified as the cristae a. true b. false |
b. False |
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Which of the following structures is/are involved in a eukaryotic cell's support and/or movement? a. microtubles b. flagella c. membranes d. cillia e. all of the precceding are correct |
e. all of the preceeding are correct |
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One role of carbohydrates in a plant cell is in the cell wall a. true b. false |
a. true |
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The inner connected green membrane structure of a choroplast that helps increase the membranes surface are....is/are called a. Matrix b. Cristae c. thylakoid d. stroma e. ribosomes |
c. thylakoid |
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An ionic bond is one in which two atoms share one or more pairs of outer shell electrons a. true b. false |
b. false |
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Which of the following bonds listed is found when forming table salt (NaCl)? a. hydrogen bond b. ionic bond c. covalant bond d. Sugar bond |
b. Ionic bond |
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An acid beyond a protein's structural limit will denature a protein a. true b. false |
a. true |
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Osmosis is the passive transport of water a. true b. false |
a. true |
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A carbon atom (atomic number six) can covalently bond with up to ______ other elements. a. one b. two c. four d. five e. 42 |
c. four |
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Which of the following is not a membrane-bound organell in a eukaryote? a. mitochondra b. rough ER c. smooth ER d. Golgi apparatus e. ribosomes |
e. ribosomes |
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The main function of a ribosome is: a. conversion of light energy b. lipid synthesis c. temporary storage d. DNA synthesis e. none of these answer selections are correct |
e. none of these answer selections are correct |
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Which of the following is a eukaryotic plant cell junction? a. tight junction b. anchoring junction c. plasmodesmata d. communicating junction e. all of these are correct |
e. all of these are correct
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facilitated diffusion requires the use of ATP to occure a. true b. false |
b. false |
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Endergonic reactions require energy to start a. true b. false |
b true |
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Ice is ____ dense than liquid water so that ice will sink "float". a. less b. more |
b. more |
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Buffers in a life system are used to maintain the pH of an enviorment a. true b. false |
a. true |
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Olive oil is a: a.saturated lipid b. protein c. carbohydrate d. nucleic acid e. unsaturated lipid |
a. Saturated lipid |
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Plant cells convert carbohydrate food (that they have manufactured through photosynthesis) into ATP, aerobically via their mitochondria in the reaction of cellular respiration. a. true b. false |
a. true |
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there are five nitrogen-containing bases in all when referring to nucleotides. Which four are found in DNA? a. Adenine, guanine, thymine, cytosine b. adenine, guanine, uracil |
a. Adenine, guanine, thymine, cytosine |
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A lipid that is unsaturated is ______ at room temperature a. solid b. liquid |
b. liquid |
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Which of the following molecules are not identified as monomers of the "macromolecules of life"? a. amino acids b. monosaccharides c. hydrocarbons/fatty acids d. nucleotides e. nucleic acids |
d. nucleoties |
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Which of the following chemical bonds following is considered the strongest? a. triple-covalent b. ionic c. hydrogen |
a. triple-covalent |
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The atomic mass of an element is equal to an atom's number of electrons a. true b. false |
b. false |
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Enzymes _____ a rections energy of activation level a. lower b. raise c. maintain |
b. raise |
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Which of the following are identified as the "packaging/finishing" organelles in a eukaryotic cell? a. lysosome b. nucleus c. golgi apparatus d. ribosomes e. rough ER |
c. golgi apparatus |
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Cellulose is a(n): a ploysaccharide b. protein c. lipid d. nucleic acid e. enzyme |
a. polysaccharide |
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A single (one) water molecule is held together by which of the following type of bond? a. hydrogen b. polar ionic c. non-polar ionic d. covalent e. polar covalent |
a. hydrogen |
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An enzyme bonds with a substrate active site a. true b. false |
a. true |
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A molecule with the same number and types of atoms (example: carbon hydrogen, oxygen) but that differs in a structure (example: glucose and fructose) are identified as isomers. a. true b. false |
a. true |
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A primary protein sequence is a specific gene identified DNA specified amino acid a. true b. false |
a. true |
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Which of the following structures do eukaryotes cells have? a. nucleus b. rough ER c. ribosomes d. mitochondria e. all of the preceding are correct |
e. all of the preceding are correct |
