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Despite the lack of a membrane-bound nucleus,bacteria and archaea are cells with a complex organizational structure.

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Which statement correctly compares the sizes of different microorganisms?


A) Bacteria are larger than viruses
B) Bacteria are larger than eukaryotic microorganisms
C) Eukaryotic microorganisms are smaller than viruses
D) Archaea are larger than eukaryotic microorganisms but smaller than bacteria

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Helminths are ________.


A) bacteria
B) protozoa
C) molds
D) parasitic worms
E) infectious particles

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Using microbes to detoxify a site contaminated with heavy metals is an example of ________.


A) biotechnology
B) bioremediation
C) decomposition
D) immunology
E) epidemiology

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The lipid group that is the major component of cell membranes is the ________.


A) prostaglandins
B) waxes
C) phospholipids
D) steroids
E) triglycerides

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Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?


A) Cause human disease
B) Lack a nucleus
C) Cannot be seen without a microscope
D) Contain genetic material
E) Lack cell structure

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Living things ordinarily too small to be seen with the unaided eye are termed ________.


A) bacteria
B) viruses
C) parasites
D) microorganisms
E) prokaryotes

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All proteins are enzymes.

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Which of the following statements correctly determines the process when following the scientific method?


A) Formulate question,conduct research,propose hypothesis,test hypothesis
B) Propose hypothesis,test hypothesis,formulate question,conduct research
C) Formulate question,propose hypothesis,test hypothesis,conduct research
D) Conduct research,formulate question,propose hypothesis,test hypothesis

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Breonna Jones is 16 years old, 5'4", and weighs 93 lb. She was admitted to an inpatient medical unit 2 days ago after collapsing at the local high school. Her parents knew she was skinny and had lost weight in the past few months, but had no idea that her life was in danger. The medical team has instituted treatment for anorexia nervosa. As you develop Breonna's nursing plan of care, you take into consideration the four major biological molecules that are building blocks of all cells. -The nurse implements an extensive nutrition education plan for Breonna,beginning at the molecular level.Carbohydrates,lipids,proteins,and nucleic acids are the four main families of biological molecules referred to as ________.


A) macromolecules
B) monosaccharides
C) polysaccharides
D) micromolecules

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Carl Woese and George Fox developed the three-domain system of taxonomy based on what molecular discovery?


A) Variations in the ribonucleic acid of the small ribosomal subunit of organisms
B) Mutations in enzyme proteins
C) Genetic analysis showing that bacteria and archaea are identical
D) Molecular analysis of genes showing that eukaryotes evolved from bacteria,and bacteria evolved from archaea

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The microorganisms that recycle nutrients by breaking down dead matter and wastes are called ________.


A) decomposers
B) prokaryotes
C) pathogens
D) eukaryotes
E) fermenters

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When assigning a scientific name to an organism,


A) the species name is capitalized.
B) the species name is placed first.
C) the species name can be abbreviated.
D) both genus and species names are capitalized.
E) both genus and species names are italicized or underlined.

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Nucleic acids have primary,secondary,tertiary,and quaternary levels of organization.

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During protein synthesis,________ RNA is made as a copy of a gene from DNA.


A) transfer
B) messenger
C) ribosomal
D) All of the choices are correct.

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The Dutch merchant who made and used quality magnifying lenses to see and record microorganisms was ________.


A) Francesco Redi
B) Antonie van Leeuwenhoek
C) Louis Pasteur
D) Joseph Lister
E) Robert Koch

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You are trying to identify a chemical that consists of adenine,ribose,and three phosphates. What is this chemical?


A) DNA
B) RNA
C) ATP
D) Phospholipid

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The acceptance or rejection of a hypothesis is based on a series of educated guesses and opinions.  Once the opinion is widely accepted it becomes a theory.

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All of the following are lipids except ________.


A) cholesterol
B) starch
C) phospholipid
D) wax
E) triglyceride

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Most biochemical macromolecules are polymers,which are chains of ________.


A) hydrophobic molecules
B) electrolytic molecules
C) repeating monomers
D) repeating carbohydrates
E) hydrogen bonds

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