BIO 251 FInal Exam REvIEw 2026 aCTUal QUEsTIOns and vERIFIEd
answERs (laTEsT UpdaTE) a+ GRadE 100% GUaRanTEE
vERIFIEd By ExpERTs
microbes
What types of organisms generate at least half, if not more, of the oxygen on the
planet?
A. Plants
B. Microbes
All of the above
Which of the following products may be created using microbes. Select all that
apply.
food
medicines
biofuels
paper
insulin
True
True or false: Some microbes may make us sick, but others help keep us healthy.
Viruses & Prions
Which of the following are acellular microbes? Select all that apply.
Bacteria
Viruses
Helminths
Prions
Fungi
Vitamin K
Which vitamin do certain microbes in our intestines produce?
Vitamin A
Vitamin C
,Vitamin K
Vitamin B
Vitamin D
Atom
Which of these is the basic building block of matter?
Proton
Electron
Molecule
Atom
Neutron
False.
- A positively charged ions a Cation(+)
True or false: A positively charged ion is called an anion.
C6H12O6(glucose)
Which of the following would be considered to be an organic molecule?
NH3+
C6H12O6
SiO2
H+
CO2
False
True or false: A solution with a pH of 8 is acidic.
Amino acid = Protein
Saccharide= Carbohydrate
Fatty acid & glycerol = Lipids
Nucleotide= Nucleic Acid
Match the macromolecule with its subunit. Pick the best option.
Amino acid
Saccharide
Fatty acid & glycerol
Nucleotide
Bank:
A.Carbohydrate
B.Lipid
, C.Protein
D.Nucleic acid
Biochemical testing
Which of the following techniques analyzes the products of microbial
metabolism?
Culturing
Polymerase chain reaction
Staining
Biochemical testing
Microscopy
False
Differential uses 2 dyes
True or false: A differential stain typically uses just one dye that works the same
on all structures/organisms.
Colony
What term do we use to describe a mass of microbial cells growing in one
location on a medium that all came from just one or a few cells?
Hyphae
Colony
Culture
Bacterium
None of these
B. General purpose, because it would give the organism many different nutrients
Which type of medium would be best to start with if we had to grow an unknown
organism?
A. Specialized, because it would give the organism a few specific nutrients
B. General purpose, because it would give the organism many different nutrients
C. Specialized, because it would give the organism many different nutrients
D. General purpose, because it would give the organism a few specific nutrients
Polymerase chain reaction
Which of the following techniques would be used if you wanted to analyze the
genetic information of an organism?
Culturing
Polymerase chain reaction
answERs (laTEsT UpdaTE) a+ GRadE 100% GUaRanTEE
vERIFIEd By ExpERTs
microbes
What types of organisms generate at least half, if not more, of the oxygen on the
planet?
A. Plants
B. Microbes
All of the above
Which of the following products may be created using microbes. Select all that
apply.
food
medicines
biofuels
paper
insulin
True
True or false: Some microbes may make us sick, but others help keep us healthy.
Viruses & Prions
Which of the following are acellular microbes? Select all that apply.
Bacteria
Viruses
Helminths
Prions
Fungi
Vitamin K
Which vitamin do certain microbes in our intestines produce?
Vitamin A
Vitamin C
,Vitamin K
Vitamin B
Vitamin D
Atom
Which of these is the basic building block of matter?
Proton
Electron
Molecule
Atom
Neutron
False.
- A positively charged ions a Cation(+)
True or false: A positively charged ion is called an anion.
C6H12O6(glucose)
Which of the following would be considered to be an organic molecule?
NH3+
C6H12O6
SiO2
H+
CO2
False
True or false: A solution with a pH of 8 is acidic.
Amino acid = Protein
Saccharide= Carbohydrate
Fatty acid & glycerol = Lipids
Nucleotide= Nucleic Acid
Match the macromolecule with its subunit. Pick the best option.
Amino acid
Saccharide
Fatty acid & glycerol
Nucleotide
Bank:
A.Carbohydrate
B.Lipid
, C.Protein
D.Nucleic acid
Biochemical testing
Which of the following techniques analyzes the products of microbial
metabolism?
Culturing
Polymerase chain reaction
Staining
Biochemical testing
Microscopy
False
Differential uses 2 dyes
True or false: A differential stain typically uses just one dye that works the same
on all structures/organisms.
Colony
What term do we use to describe a mass of microbial cells growing in one
location on a medium that all came from just one or a few cells?
Hyphae
Colony
Culture
Bacterium
None of these
B. General purpose, because it would give the organism many different nutrients
Which type of medium would be best to start with if we had to grow an unknown
organism?
A. Specialized, because it would give the organism a few specific nutrients
B. General purpose, because it would give the organism many different nutrients
C. Specialized, because it would give the organism many different nutrients
D. General purpose, because it would give the organism a few specific nutrients
Polymerase chain reaction
Which of the following techniques would be used if you wanted to analyze the
genetic information of an organism?
Culturing
Polymerase chain reaction
