Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 2, Problem 10MCQ
Summary Introduction
Introduction:
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Which is not true of RNA?
a. It is usually single-stranded.
b. It functions in the cytoplasm.
c. It contains uracil.
d. It contains ribose.
e. There are 4 functional types.
What is the role of the nucleolus?
A.
produce DNA
B.
produce lipids
C.
produce ribosomes
D.
produce carbohydrates
Which is true of Prokaryote cells? A) Because their DNA exists in a nucleoid area, the synthesis of proteins depends on random interactions between mRNA and rRNA, B) They contain membrane-bounded compartments or organelles. C) A true nucleus contains the DNA in the form of chromosomes D) Some contain mitochondria E) They contain many organelles in the cytoplasm
Chapter 2 Solutions
Microbiology: A Systems Approach
Ch. 2.1 - Explain the relationship between atoms and...Ch. 2.1 - Prob. 2AYPCh. 2.1 - Prob. 3AYPCh. 2.1 - Prob. 4AYPCh. 2.2 - Prob. 5AYPCh. 2.2 - Provide examples of cell components made from each...Ch. 2.2 - Prob. 7AYPCh. 2.2 - Prob. 8AYPCh. 2.2 - Name the nitrogen bases of DNA and RNA.Ch. 2.2 - Prob. 10AYP
Ch. 2.3 - Recall three characteristics common to all cells.Ch. 2 - The smallest unit of matter with unique...Ch. 2 - The ____ charge of a proton is exactly balanced by...Ch. 2 - Electrons move around the nucleus of an atom in...Ch. 2 - Bonds in which atoms share electrons are defined...Ch. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - Prob. 7MCQCh. 2 - Prob. 8MCQCh. 2 - DNA is a hereditary molecule that is composed of...Ch. 2 - Prob. 10MCQCh. 2 - Prob. 11TFCh. 2 - Prob. 12TFCh. 2 - Prob. 13TFCh. 2 - Prob. 14TFCh. 2 - Membranes are mainly composed of macromolecules...Ch. 2 - Support or refute the following statement: Double...Ch. 2 - Prob. 2CTQCh. 2 - Plant cell walk are composed of cellulose, a...Ch. 2 - Compare and contrast the kinds of chemical bonding...Ch. 2 - Prob. 5CTQCh. 2 - Prob. 1VCCh. 2 - Prob. 1CM
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- What is the first step in protein synthesis? A. making an RNA copy of the DNA within the nucleus B. making a sequence of amino acids C. forming peptide bonds between amino acids D. making a copy of RNA with DNA outside the nucleusarrow_forwardWhich statement is true of reverse transcriptase? a. It is a nucleic acid. b. It infects cells. c. It transcribes RNA to make DNA. d. It is a lipid.arrow_forwardWhich statement describes all prokaryotic and eukaryotic cells? A. Ribosomes are present in the cytoplasm. B. Materials are stored in vacuoles. C. Chloroplasts are used for photosynthesis. D. Cell walls provide support and shapearrow_forward
- Which statement describes how heterotrophs depend on autotrophs for survival? a Autotrophs make lactic acid for respiration. b Autotrophs supply oxygen for respiration. c Autotrophs produce carbon dioxide for respiration. d Autotrophs provide sunlight for respiration.arrow_forwardIn order to isolate the DNA or RNA from the cells, what would be the first step? a. to block the mucleus from digesting the nucleic acid b.To precipiate the nucleic acid c. To break down the plasma membrane and the cell walls (plant cells) d.To remove protiens from the solutionsarrow_forwardUse the image below to answer the questions: a) What general process does the picture illustrate? b) Briefly outline three main steps involved in this process c) indicate why an oxygen-free environment is importantarrow_forward
- Which group includes organisms that are thermophiles? a-photosynthetic autotrophs b-Eubacteria c-cyanobacteria d-Archaebacteriaarrow_forwardWhich theory of aging states that unstable oxygen molecules tend to steal electrons as they bounce around, thus causing damage to surrounding cells? a. cellular-clock theory b. wear-and-tear theory c. free-radical theory d. activity theoryarrow_forwardChoose the combination of answers that most accurately completes the statement. Transfer RNA is the molecule that a. contributes to the structure of ribosomes b. adapts the genetic code to protein structure c. transfers the DNA code to mRNA d. provides the master code for amino acidsarrow_forward
- How does fluoroquinolone antibiotic drug treat infections? a. Blocking folic acid synthesis b. Blocking protein synthesis c. Inhibiting nucleic acid synthesis d. Weakening bacterial cell wallarrow_forwardWhich statement is true of viroids? a. They are single-stranded RNA particles. b. They reproduce only outside of the cell. c. They produce proteins. d. They affect both plants and animalsarrow_forwardWhich key feature of living organisms is best described as the transmission of DNA from parent to offspring? A.)Homeostasis B.)Growth C.)Response to changes D.)Inheritancearrow_forward
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