LIfe Science 6B Quiz Practice Question Preview (ID: 58207)


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A vaccine stimulates the body to _______ the weakened virus.
a) fight
b) accept
c) receive
d) ignore

During which viral infection cycle does the infected cell burst?
a) lysomatic
b) lytic
c) lysogenic
d) cryogenic

The word lysis means?
a) close
b) clamp
c) burst
d) replicate

Which of the following statements is false about viruses?
a) they cannot reproduce on their own
b) they inject their genetic material into the host cell
c) they are much smaller than human cells
d) they are capable of attacking any cell

Some diseases are caused by _______ genes.
a) helper
b) defender
c) mutated
d) retro

Gene therapy seeks to use ______ to repair defective genes.
a) bacteria
b) vitamins
c) enzymes
d) viruses

You can _______ some of the most serious viral diseases by being vaccinated against them.
a) contract
b) avoid
c) develop
d) receive

Viruses ______ the cell by bursting it open and escaping to infect new cells.
a) copy
b) replicate
c) enter
d) destroy

Each time the host cell goes through mitosis, the viral DNA is replicated and passed to the _______cells.
a) daughter
b) related
c) dead
d) RNA

There are several things that you can do to limit the number of viruses that infect you. One is to practice good ________.
a) study
b) hygiene
c) focus
d) posture

What is one of the most effective ways to avoid illness?
a) staying inside
b) wearing a mask
c) washing your hands
d) breathing inside air

Eating a balanced, nutritious diet and _____ regularly may limit the number of illnesses you suffer.
a) reading
b) studying
c) crying
d) exercising

A ______ is an injection of a weakened or dead virus.
a) vaccine
b) disease
c) bacteria
d) lysosome

Some viruses do not kill the host cell immediately. Instead the viral DNA remains inactive for months or even years. This type of virus is called a ______virus.
a) dead
b) latent
c) suspended
d) non-living

The viral nucleic acid uses the cell’s own cellular machinery to make more _______.
a) cells
b) proteins
c) viruses
d) membranes

Viruses cannot ________ on their own.
a) function
b) infect
c) exist
d) reproduce

To “live” a virus must infect a cell in another organism, called the _______ cell.
a) host
b) helper
c) T
d) latent

A virus is pretty simple. It consists of only a nucleic acid, either DNA or RNA, surrounded by a protein coat called a _______.
a) capsid
b) protein sheet
c) T-Cell
d) B-Cell

Viruses are not _____, and scientists debate whether they are even alive.
a) un-dead
b) cells
c) real
d) dangerous

Most viruses are so small that cannot be seen even with a ______ microscope.
a) electron
b) digital
c) light
d) retrograde

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