Chapter 1 Worksheet Flashcards
T/F Bacterial cell walls are composed of cellulose.
False, Cellulose is found in
plants’ cell wall, bacteria cell wall is made of peptidoglycan
T/F All bacteria cells have cell walls.
False, Mycoplasma does not have cell
wall
T/F Bacteria and Archaea are prokaryotic and unicellular.
True
T/F Archaea cell walls are made of peptidoglycan
False, No just peptidoglycan
it also contains other chemicals
T/F Bacteria and archaea reproduce asexually.
True
T/F Archaea are known to cause diseases in humans.
False, Humans do not offer
the extreme environment required by Archaea
T/F Bacteria are known to cause disease in humans.
True
T/F Bacteria are often found in extreme environments whereas
archaea are found everywhere.
False, Bacteria found everywhere; Archaea in
extreme environments
T/F All bacteria can cause disease in humans.
False, Not all cause disease
T/F Bacteria can degrade dead plants and animals (microbial
recyclers); and without bacteria our bodies would be much more
susceptible to disease.
True
T/F Fungi are eukaryotic cells.
True
T/F Fungi can degrade dead plants and animals (microbial
recyclers).
True
T/F Fungi like plants can make their own food (photosynthetic).
False, Fungi are not photosynthetic; plants, algae and protists are photosynthetic
T/F Microscopic fungi include some molds and yeast
True
T/F Molds are multicellular, and yeast are unicellular.
True
T/F Fungi are known to cause disease.
True
T/F All fungi can cause disease in humans.
False, Not all cause disease
T/F Fungi have cell walls.
True
T/F Fungi cells walls is made of cellulose.
False, their cell wall is made out
of chitin.
T/F Protozoa like bacteria are prokaryotic unicellular organisms
False, Protists are eukaryotic unicellular organisms
T/F Most protozoa live in water, but some live inside animal host
True
T/F Euglena, amoeba, and paramecium are examples of protozoa.
True
T/F Protozoa can be categorized according to their locomotive
structures
True
T/F Euglena has flagella, paramecium has pseudopods and amoeba
has cilia.
False, paramecium has cilia and amoeba pseudopods
T/F Protozoa can cause disease in humans.
True
T/F Protozoa have cells walls made of peptidoglycan.
False, Protozoa does not have cell wall. They can survive in fresh water or hypotonic
environments due to the presence of the contractile vacuole
T/F Algae are unicellular or multicellular photosynthetic
eukaryotes
True
T/F Large algae like seaweeds and kelps are common in the oceans
True
T/F Scientists use the algae-derived chemical called agar to solidify
laboratory media.
True
T/F Unicellular algae provide most of the world’s oxygen as a by-product of photosynthesis
True
T/F Algae can cause human diseases
False, algae cannot cause human diseases
T/F Parasitic worms are the largest organisms studied by
Microbiologists are often visible without a microscope, although their
immature stages are microscopic
True
T/F Laboratory scientists diagnose infections of parasitic worms by finding macroscopic eggs and immature stages in blood, fecal, urine, and lymph nodes
False, not macroscopic eggs instead microscopic eggs
T/F Parasitic worms can cause human diseases
True
T/F (Virus) Typically, much smaller than prokaryotes and not visible by light
microscopy.
True
T/F Viruses are the smallest microbes studied by microbiologists.
True
T/F (Virus) Only can be seen under the electron microscope.
True
T/F Viruses are obligate intracellular parasites.
True
T/F Viruses are made of cells
False, they are acellular – no cells
T/F Viruses can cause human diseases.
True
