Life Science Section 6A Quiz Practice Question Preview (ID: 58065)


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Part of the Curse included bacteria becoming the cause of __________ such as tuberculosis, strep throat, and food poisoning
a) organisms
b) diseases
c) antidotes
d) remedies

Many of the bacteria in your microbiota keep other, less friendly _______ from starting to grow in or on your body.
a) viruses
b) DNA
c) bacteria
d) RNA

Bacteria called ________ are responsible for recycling matter from waste materials and the remains of plants and animals into the soil where they can be reused.
a) autotrophs
b) producers
c) heterotrophs
d) decomposers

The most common nutrient on Earth is _______. Too bad people and most animals can’t digest it.
a) cellulose
b) glucose
c) carbohydrate
d) glycogen

Normally bacteria reproduce by _______ fission.
a) binary
b) multiple
c) natural
d) synthetic

The reason the earth hasn’t been destroyed by bacteria is that the conditions must be exactly right for bacteria to _______ so quickly.
a) grow
b) rebuild
c) reproduce
d) expand

Some bacteria can reproduce every _______ minutes.
a) five
b) twenty
c) thirty
d) fifty

Sometimes the ________ are so poor that bacteria struggle to survive.
a) cells
b) chromosomes
c) endospores
d) conditions

_______ need nitrogen to grow, but they can’t use the nitrogen gas in the atmosphere.
a) Plants
b) Bacteria
c) Archaea
d) Heterotrophs

Bacteria are so _______ that it’s hard to find a process that they are not involved in.
a) rare
b) elusive
c) common
d) divergent

While we often think of bacteria as something to be ______ or killed, many of them are quite helpful.
a) embraced
b) avoided
c) respected
d) grasped

Most prokaryotes are classified in kingdom ______. They lack membrane-bound organelles.
a) archaea
b) microbia
c) bacillius
d) bacteria

Although ________ are most famous for living in extreme places such as hot springs, they also live in more ordinary places such as the ocean, swamps, and even the human body.
a) bacteria
b) archaea
c) viruses
d) euglena

The hot, rainbow-colored waters of the Grand Prismatic Spring in Yellowstone National Park, would be _______ for a human.
a) beneficial
b) constructive
c) deadly
d) benign

Because a bacterium lacks a nucleus, its DNA, which forms a circular _________, is suspended in the cytosol.
a) chromosomes
b) golgis
c) ribosomes
d) molecules

Some bacteria have a slimy coating called a capsule that covers their cell walls. The capsule prevents the bacterium from ________ out.
a) washing
b) running
c) going
d) drying

Bacteria living in the different temperature areas of the Grand Prismatic Spring produce the different _______.
a) colors
b) smells
c) toxins
d) temperatures

Some bacteria help us digest our food, and some produce important _______.
a) vitamins
b) minerals
c) proteins
d) tissues

Most microbiota are ________. In fact, many are beneficial.
a) lethal
b) harmless
c) malignant
d) mortal

Scientists and doctors have known for many years that the human body harbors ______ of bacterial cells.
a) hundreds of thousands
b) millions
c) billions
d) trillions

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