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WorksheetsMI 3.4
Total questions: 25
Worksheet time: 25mins
A microscope ______________________objects.
condenses
magnifies
eliminates
electrifies
Which microbe is the image most likely to be?
Bacteria
Fungus
Virus
None of the above
What do viruses need to reproduce?
they need genetic material
They need a host cell
They need bacteria
They need insulin
Select the correct definition to the correct microbes
Virus
Contains DNA and a protein coat
Bacteria
No Nucleus and Unicellular
Protist
Has a nucleus, unicellular or multicellular, autotroph or heterotroph
Fungi
Has a nucleus, mainly multicellular, and heterotrophs
List the steps of the scientific method
Conduct experiment
Form a hypothesis
Draw conclusions
Communicate results
Ask a question
Analyze results
Reorder the microbe groups from simplest to most complex
Archaea
Bacteria
Protists
Fungi
Which microbe is the image most likely to be?
Bacteria
Fungus
Virus
None of the above
Bacteria reproduce asexually and result in offspring that are
identical
different
Which of the following is a true statement about bacteria?
Bacteria exist in only a few environments on earth
Bacteria can grow to extremely large sizes
Most bacteria are harmful to humans
Bacteria can be both harmful and helpful to humans
Reasons that viruses are considered to be nonliving is because
They are not cellular
They cannot reproduce on their own
They cannot make energy
all of the above
A virus contains ______, the genetic material it uses to invade a living thing.
DNA
RNA
ATP
Cells
During PCR, what happens during the Denaturation step?
DNA strands are separated according to size using gel electrophoresis.
Primers form base pairs with the single-stranded template DNA.
DNA polymerase adds new nucleotides to the primer to elongate the new strand.
Hydrogen bonds between bases are broken using high heat to separate DNA strands.
Which of the following statements are true about DNA structure?
The DNA backbone ("sides of the ladder") is made up of sugars and phosphates.
The sugars and phosphates make up the unique code of each gene.
The DNA backbone is the same for every person.
Bases and sugars pair together to form the "rungs" of the DNA ladder.
The sequence of bases is unique for each person.
During which PCR step do primers form complementary base pairs with single-stranded template DNA?
Denaturation
Annealing
Extension
Synthesis
Which part of Sanger (Cycle) Sequencing is NOT found in regular Polymerase Chain Reaction (PCR)?
DNA polymerase
Primers
Deoxyribonucleotides (dNTPs)
Dideoxyribonucleotides (ddNTPs)
DNA template
How are deoxyribonucleotides different from dideoxyribonucleotides? Choose all that apply.
Deoxyribonucleotides are used in both PCR and Cycle Sequencing.
Dideoxyribonucleotides are missing an OH group compared to deoxyribonucleotides.
You cannot add new nucleotides to a deoxyribonucleotide.
Deoxyribonucleotides are NOT found in natural living cells.
Dideoxyribonucleotides are labeled with fluorescent tags.
How is DNA synthesis in PCR and Cycle Sequencing the SAME?
Both require DNA polymerase.
Both require primers.
Both require deoxynucleotides (dNTPs).
Both require dideoxynucleotides (dNTPs).
Both generate new DNA products of equal length.
What is the primary function of a microscope?
To condense objects
To magnify objects
To eliminate objects
To electrify objects
What do viruses need to reproduce?
Genetic material
A host cell
Bacteria
Insulin
Select the correct definition for microbes.
Virus
Bacteria
Protist
Fungi
Reorder the microbe groups from simplest to most complex.
Archaea
Bacteria
Protists
Fungi
Bacteria reproduce asexually and result in offspring that are:
Identical
Different
Which of the following is a true statement about bacteria?
Bacteria exist in only a few environments on earth
Bacteria can grow to extremely large sizes
Most bacteria are harmful to humans
Bacteria can be both harmful and helpful to humans
Reasons that viruses are considered to be nonliving include:
They are not cellular
They cannot reproduce on their own
They cannot make energy
All of the above
A virus contains ______, the genetic material it uses to invade a living thing.
DNA
RNA
ATP
Cells
